Commit Graph

1861 Commits

Author SHA1 Message Date
Neil Horman
7170be5f58 [PATCH] convert /proc/devices to use seq_file interface
A Christoph suggested that the /proc/devices file be converted to use the
seq_file interface.  This patch does that.

I've obxerved one or two installation that had sufficiently large sans that
they overran the 4k limit on /proc/devices.

Signed-off-by: Neil Horman <nhorman@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-14 18:25:19 -08:00
Ian Kent
faf3a98918 [PATCH] autofs4 oops fix
We forgot to initialise a couple of nameidata fields.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-14 18:25:19 -08:00
Christian Kujau
624dffcbcf correct email address of Manfred Spraul
I  tried to send the forcedeth maintainer an email, but it came back with:

"The mail address manfreds@colorfullife.com is not read anymore.
Please resent your mail to manfred@ instead of manfreds@."

This patch fixes this.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-15 02:43:54 +01:00
Jesper Juhl
014c2544e6 return statement cleanup - kill pointless parentheses
This patch removes pointless parentheses from return statements.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-15 02:37:08 +01:00
Evgeniy
7b4ee73e28 [PATCH] ufs cleanup
Here is update of ufs cleanup patch, brought on by the recently fixed
ubh_get_usb_second() bug that made some ugly code rather painfully
obvious.  It also includes

 - fix compilation warnings which appears if debug mode turn on
 - remove unnecessary duplication of code to support UFS2

I tested it on ufs1 and ufs2 file-systems.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-14 10:27:32 -08:00
Steve French
eeac8047fc [CIFS] Fix CIFS to recognize share mode security
Fix Samba bugzilla bug 3301

In share mode encrypted password must be sent on tree connection (in our
case only the NTLM password is sent, not the older LANMAN one).

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-13 21:34:58 -08:00
Paul Mackerras
25cd6aa0aa Merge ../linux-2.6 2006-01-14 09:15:28 +11:00
Evgeniy
8a430d74fe [PATCH] Fix oops in ufs_fill_super at mount time
There's a lack of parenthesis in fs/ufs/utils.h, so instead of the 512th
byte of buffer, the usb2 pointer will point to the nth structure of type
ufs_super_block_second.

This can cause a mount-time oops if you're unlucky (especially with
DEBUG_PAGEALLOC, which is how Alexey Dobriyan saw this problem)

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Acked-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-13 08:42:48 -08:00
Dave C Boutcher
898b5395e9 [PATCH] powerpc: Add/remove/update properties in /proc/device-tree
Add support to the proc_device_tree file for removing
and updating properties.  Remove just removes the
proc file, update changes the data pointer within
the proc file.  The remainder of the device-tree
changes occur elsewhere.

Signed-off-by: Dave Boutcher <sleddog@us.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-13 21:02:13 +11:00
Steve French
84153973a2 [CIFS] Fix typo
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-12 20:57:56 -08:00
Steve French
0a4b92c05e [CIFS] Add worker function for Get ACL cifs style
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-12 15:44:21 -08:00
Steve French
94bc2be31a Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-12 14:47:08 -08:00
Steve French
c32a0b689c [CIFS] Allow local filesize for file that is open for write to be updated
from server when mount forcedirectio.

Allowing update of file size with non forcedirectio mounts should be
allowed in the fiture but requires carefully writing out the
last page in the local file if it is a partial page in order to
avoid corruption and careful serialization

Thanks to Maximiliano Curia who suggested similar changes and provided
a testcase.

Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-12 14:41:28 -08:00
Linus Torvalds
9f5974c873 Merge git://oss.sgi.com:8090/oss/git/xfs-2.6 2006-01-12 09:10:34 -08:00
Andi Kleen
c6b44d10f2 [PATCH] Implement ioctl emulation for the parport character device
Fixes bugzilla.kernel.org bug 2903.

Cc: <tim@cyberelk.net>
Cc: <andrea@suse.de>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12 09:08:49 -08:00
Andi Kleen
2966387b48 [PATCH] x86_64: Implement compat code for sg driver SG_GET_REQUEST_TABLE ioctl
Apparently helps with some non SANE scanner drivers.

Cc: axboe@suse.de

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 19:04:53 -08:00
Randy Dunlap
16f7e0fe2e [PATCH] capable/capability.h (fs/)
fs: Use <linux/capability.h> where capable() is used.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Acked-by: Tim Schmielau <tim@physik3.uni-rostock.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:13 -08:00
Randy.Dunlap
c59ede7b78 [PATCH] move capable() to capability.h
- Move capable() from sched.h to capability.h;

- Use <linux/capability.h> where capable() is used
	(in include/, block/, ipc/, kernel/, a few drivers/,
	mm/, security/, & sound/;
	many more drivers/ to go)

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:13 -08:00
Jan Kara
ef43bc4fc3 [PATCH] reiserfs: fix assertion failure in reiserfs+journaled quotas
Sometimes we call do_journal_end() with t_refcount == 0.  If quota is
turned on and we happen to have some inode with preallocation bad things
happen as we try to use the current handle for quota operations.  Checks
for t_refcount in journal_begin() fail and we Oops.  We raise t_refcount to
make those checks happy.  We should not cause any bad as all the needed
quota blocks should be already attached to the transaction (they were
attached to the transaction when we allocated those preallocation blocks).

Signed-off-by: Jan Kara <jack@suse.cz>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <mason@suse.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:12 -08:00
Vivek Goyal
9e9e3941d0 [PATCH] kdump: vmcore compilation warning fix
o fs/proc/vmcore.c compilation gives warnings on ppc64. The reason being
  that u64 is defined as unsigned long hence u64* is not same as loff_t*
  and compiler cribs.

o Changed the parameter type to u64* instead of loff_t* to resolve the
  conflict.

Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11 18:42:11 -08:00
Nathan Scott
ddae9c2ea7 Merge HEAD from oss.sgi.com:/oss/git/linux-2.6.git 2006-01-12 13:34:47 +11:00
Nathan Scott
0d1335b310 [XFS] Fix follow_link when dealing with symlinks larger than 256 bytes.
Thanks to Yamamoto Takashi.

SGI-PV: 947953
SGI-Modid: xfs-linux-melb:xfs-kern:24962a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-12 10:32:51 +11:00
Nathan Scott
3762ec6bf7 [XFS] Merge in trivial changes, sync up headers with userspace
equivalents.

SGI-PV: 907752
SGI-Modid: xfs-linux-melb:xfs-kern:24961a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-12 10:29:53 +11:00
Nathan Scott
6ab65429b4 [XFS] Fix compiler warnings from older gcc versions wrt printfalike
arguments.

SGI-PV: 907752
SGI-Modid: xfs-linux-melb:xfs-kern:24901a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 21:03:28 +11:00
Nathan Scott
ca5ccbf98d [XFS] Fix some build fallout from atime changes.
SGI-PV: 946679
SGI-Modid: xfs-linux-melb:xfs-kern:24899a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 21:03:04 +11:00
Tim Shimmin
1259845d3f [XFS] remove XFS_LOG_RES_DEBUG and turn on the res history all the time to
get more useful error info on space for trans items

SGI-PV: 947110
SGI-Modid: xfs-linux-melb:xfs-kern:24886a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 21:02:47 +11:00
Yingping Lu
71df099dc3 [XFS] xfssyncd is responsible for flushing inode or device's data by
extracting the work from its queue. In addition, this processing also
decrement the inode's i_count. If there are any remaining works in queue
before this process terminates, we have unbalanced increment and decrement
of i_count. Thus it can cause assertion failure of vn_count. The fix
allows xyssyncd to process any remaining work before it is shutdown. 

SGI-PV: 945935
SGI-Modid: xfs-linux-melb:xfs-kern:203970a

Signed-off-by: Yingping Lu <yingping@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 21:02:29 +11:00
Christoph Hellwig
75e17b3caf [XFS] add helper to get xfs_inode from vnode
SGI-PV: 947206
SGI-Modid: xfs-linux-melb:xfs-kern:203960a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:58:44 +11:00
Nathan Scott
204ab25f36 [XFS] Fix up offset type inconsistencies and gcc warnings from earlier
changes.

SGI-PV: 947038
SGI-Modid: xfs-linux-melb:xfs-kern:24875a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:50:22 +11:00
Christoph Hellwig
da7f93e9ee [XFS] fix up per-device xfsbufd
SGI-PV: 947098
SGI-Modid: xfs-linux-melb:xfs-kern:203831a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:49:57 +11:00
Christoph Hellwig
f5e596bbef [XFS] fix writeback control handling fix a reversed condition on where to
trylock and deal with block layer congestion properly.	Patch from David
Chinner and Christoph Hellwig.

SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203830a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:49:42 +11:00
Christoph Hellwig
6c4fe19f66 [XFS] cluster rewrites We can cluster mapped pages aswell, this improves
performances on rewrites since we can reduce the number of allocator
calls.

SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203829a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:49:28 +11:00
Christoph Hellwig
7336cea8c2 [XFS] pass full 64bit offsets to xfs_add_to_ioend
SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203828a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:49:16 +11:00
Christoph Hellwig
d5cb48aaac [XFS] consolidate some code in xfs_page_state_convert The unmapped buffer
case is very similar to delayed and unwritten extends. Reorganize the code
to share some code for these cases.

SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203827a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:49:02 +11:00
Christoph Hellwig
9260dc6b2e [XFS] various fixes for xfs_convert_page fix various bogusities in
handling offets  From David Chinner and Christoph Hellwig

SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203826a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:48:47 +11:00
Christoph Hellwig
1defeac9d4 [XFS] clean up the xfs_offset_to_map interface Currently we pass a struct
page and a relative offset into that page around, and returns the current
xfs_iomap_t if the block at the specified offset fits into it, or a NULL
pointer otherwise.  This patch passed the full 64bit offset into the inode
that all callers have anyway, and changes the return value to a simple
boolean.  Also the function gets a more descriptive name: xfs_iomap_valid.

SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203825a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:48:33 +11:00
Christoph Hellwig
10ce444428 [XFS] use pagevec lookups This reduces the time spend in the radix tree
lookups and avoids unessecary look roundtrips.

SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203823a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 20:48:14 +11:00
Christoph Hellwig
f6d6d4fcd1 [XFS] Initial pass at going directly-to-bio on the buffered IO path. This
allows us to submit much larger I/Os instead of sending down lots of small
buffer_heads.  To do this we need to have a rather complicated I/O
submission and completion tracking infrastructure.  Part of the latter has
been merged already a long time ago for direct I/O support. Part of the
problem is that we need to track sub-pagesize regions and for that we
still need buffer_heads for the time beeing.  Long-term I hope we can move
to better data strucutures and/or maybe move this to fs/mpage.c instead of
having it in XFS.  Original patch from Nathan Scott with various updates
from David Chinner and Christoph Hellwig.

SGI-PV: 947118
SGI-Modid: xfs-linux-melb:xfs-kern:203822a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:40:13 +11:00
Nathan Scott
ce8e922c0e [XFS] Complete the pagebuf -> xfs_buf naming convention transition,
finally.

SGI-PV: 947038
SGI-Modid: xfs-linux-melb:xfs-kern:24866a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:39:08 +11:00
Yingping Lu
68bdb6eabc [XFS] Fixed delayed_blks assert failure during umount. The delayed_blks
was caused by ENOSPC but not Rreclaimed by xfs_release or xfs_inactive.
The fix changed the condition in xfs_release and xfs_inactive to invoke
xfs_inactive_free_eofblocks for this special case, changed
xfs_inactive_free_eofblocks to clean the delayed blks after eof. It also
changed xfs_write to set correct eof when ENOSPC occurs.

SGI-PV: 946267
SGI-Modid: xfs-linux-melb:xfs-kern:203788a

Signed-off-by: Yingping Lu <yingping@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:38:31 +11:00
David Chinner
a6867a6815 [XFS] Introduce per-filesystem delwri pagebuf flushing to reduce
contention between filesystems and prevent deadlocks between filesystems
when a flush dependency exists between them.

SGI-PV: 947098
SGI-Modid: xfs-linux-melb:xfs-kern:24844a

Signed-off-by: David Chinner <dgc@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:37:58 +11:00
Tim Shimmin
216d3b2acb [XFS] take out the call to vn_mark_bad() used when acl inherit fails and
it needs to back out the inode creation. Tested by xfs_tests/077.

SGI-PV: 930841
SGI-Modid: xfs-linux-melb:xfs-kern:24842a

Signed-off-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:37:38 +11:00
Christoph Hellwig
794fe2dc65 [XFS] endianess annotations and tidying for the uuid code
SGI-PV: 943272
SGI-Modid: xfs-linux-melb:xfs-kern:203709a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:37:17 +11:00
Nathan Scott
60a204f096 [XFS] Fix a thinko when generating a forced shutdown stack trace.
SGI-PV: 929558
SGI-Modid: xfs-linux-melb:xfs-kern:203817a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:37:00 +11:00
Ryan Hankins
0733af213f [XFS] Add a stack trace in the case of xfs_forced_shutdown.
SGI-PV: 929558
SGI-Modid: xfs-linux-melb:xfs-kern:203701a

Signed-off-by: Ryan Hankins <hankins@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:36:44 +11:00
Nathan Scott
77a7cce425 [XFS] Fix quotaoff logitem for project quota, affects log recovery only.
SGI-PV: 946444
SGI-Modid: xfs-linux-melb:xfs-kern:24768a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:35:57 +11:00
Nathan Scott
446ada4a03 [XFS] Add an XFS callout to security_inode_init_security; SE Linux is not
functional with XFS without this change.

SGI-PV: 946762
SGI-Modid: xfs-linux-melb:xfs-kern:24766a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:35:44 +11:00
Nathan Scott
c2cd255060 [XFS] Fix v2 log bufsize reporting in /proc/mounts.
SGI-PV: 946760
SGI-Modid: xfs-linux-melb:xfs-kern:24765a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:35:32 +11:00
Christoph Hellwig
42fe2b1f7f [XFS] fix, speedup and simplify atime handling let the VFS handle atime
updates and only sync back to the xfs inode when nessecary

SGI-PV: 946679
SGI-Modid: xfs-linux-melb:xfs-kern:203362a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:35:17 +11:00
Christoph Hellwig
dd954c69d1 [XFS] turn xlog helper macros into real functions
SGI-PV: 946205
SGI-Modid: xfs-linux-melb:xfs-kern:203360a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:34:50 +11:00
Eric Sandeen
24ee80882d [XFS] remove unused vars, args, & unneeded intermediate vars from zeroing
code

SGI-PV: 946641
SGI-Modid: xfs-linux-melb:xfs-kern:203328a

Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:34:32 +11:00
Eric Sandeen
65be605419 [XFS] remove unused "readonly" arg from xlog_find_tail and xlog_recover
SGI-PV: 946611
SGI-Modid: xfs-linux-melb:xfs-kern:203307a

Signed-off-by: Eric Sandeen <sandeen@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:34:19 +11:00
Nathan Scott
0d14824c07 [XFS] Ensure max diosize reported is aligned with minimum diosize.
SGI-PV: 910890
SGI-Modid: xfs-linux-melb:xfs-kern:24689a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:33:51 +11:00
Nathan Scott
ee2a4f7caa [XFS] Fix an intermittent pquota panic caused by dodgey quota flags to an
umount dquot flush call.

SGI-PV: 946444
SGI-Modid: xfs-linux-melb:xfs-kern:24680a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:33:36 +11:00
Nathan Scott
3ddb8fa98c [XFS] Sort out cosmetic differences between user and kernel copies of some
sources.

SGI-PV: 907752
SGI-Modid: xfs-linux-melb:xfs-kern:24659a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:33:02 +11:00
Nathan Scott
a255a7456d [XFS] Make d_maxiosz report the real maximum (INT_MAX) so we dont
incorrectly limit people using this interface to size IO buffers.

SGI-PV: 910890
SGI-Modid: xfs-linux-melb:xfs-kern:24657a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:32:30 +11:00
Nathan Scott
b04ed21a1f [XFS] Disable write barriers for now till intermittent IO errors are
understood.

SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:202962a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:32:17 +11:00
Nathan Scott
13059ff04c [XFS] Reverse the sense of COMPAT_ATTR and ATTR2, keeps it simple and
consistent.

SGI-PV: 941645
SGI-Modid: xfs-linux-melb:xfs-kern:202961a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:32:01 +11:00
Christoph Hellwig
e13a73f025 [XFS] Write log dummy record when freezing filesystem
SGI-PV: 945483
SGI-Modid: xfs-linux-melb:xfs-kern:202638a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:30:08 +11:00
Christoph Hellwig
1df84c930a [XFS] Mark some lookup tables const. Thanks to Arjan van de Ven for
spotting these.

SGI-PV: 946028
SGI-Modid: xfs-linux-melb:xfs-kern:202617a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:29:52 +11:00
Yingping Lu
1661dc8e7a [XFS] Fixed an assertion failure in xfs_reclaim caused by delayed block.
The assertion failure came from XFS QA41. The fix is done by enabling
truncate for delayed block in xfs_inactive.

SGI-PV: 945412
SGI-Modid: xfs-linux-melb:xfs-kern:202521a

Signed-off-by: Yingping Lu <yingping@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:29:39 +11:00
Christoph Hellwig
c7d437da3d [XFS] do barrier checks earlier. quota initialization may write to the
filesystem

SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:202355a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:28:56 +11:00
Nathan Scott
70a061f1fd [XFS] Fix typo from when enabling write barriers by default, flags botch
in showargs.

SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:24383a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:28:45 +11:00
Nathan Scott
dd9f438e32 [XFS] Implement the di_extsize allocator hint for non-realtime files as
well.  Also provides a mechanism for inheriting this property from the
parent directory for new files.

SGI-PV: 945264
SGI-Modid: xfs-linux-melb:xfs-kern:24367a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:28:28 +11:00
Nathan Scott
061f7209bd [XFS] Do not inherit properties for the quota inodes from the root inode.
SGI-PV: 945264
SGI-Modid: xfs-linux-melb:xfs-kern:24366a

Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:27:50 +11:00
Christoph Hellwig
4ef19dddba [XFS] enable write barriers by default
SGI-PV: 912426
SGI-Modid: xfs-linux-melb:xfs-kern:201981a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:27:18 +11:00
Christoph Hellwig
d3a9b1f9da [XFS] merge xfs_arch.h userspace changes back
SGI-PV: 907752
SGI-Modid: xfs-linux-melb:xfs-kern:201882a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:23:43 +11:00
Christoph Hellwig
f60d36690c [XFS] remove over-eager assert
SGI-PV: 941804
SGI-Modid: xfs-linux-melb:xfs-kern:201702a

Signed-off-by: Christoph Hellwig <hch@sgi.com>
Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11 15:22:04 +11:00
Nicolas Kaiser
7da942e5bc fs/proc/vmcore.c: header included twice
Header included twice.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-11 02:10:28 +01:00
Nicolas Kaiser
c566c6dbf9 fs/attr.c: header included twice
Header included twice.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-11 02:08:57 +01:00
Nicolas Kaiser
099f7f0a82 xfs: header included twice
Header included twice.

Signed-off-by: Nicolas Kaiser <nikai@nikai.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-11 02:06:20 +01:00
Jesper Juhl
e8d2a42467 add loglevel to printk in fs/afs/cmservice.c
This is a small patch that adds loglevel to a printk in
fs/afs/cmservice.c

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-11 01:52:40 +01:00
Jesper Juhl
74da6cd062 missing printk loglevel and tiny tiny whitespace change in binfmt_elf()
Patch adds a mising printk loglevel (I think KERN_WARNING is appropriate
here) in fs/binfmt_elf.c, and while I was there I made some tiny tiny tiny
adjustments to whitespacing in the neighborhood.

Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-11 01:51:26 +01:00
Luiz Fernando Capitulino
7823c7c121 ext2: trivial indentation fix.
This memset() line was indented with seven spaces, this patch fixes
it to use a tab instead. Yes, very trivial but it's the third time
I have to look at this line..

Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-11 01:38:27 +01:00
Greg Ungerer
845884d332 [PATCH] uclinux: delay binfmt_flat trace
Modify the initial trace output (which is based on flags in the binary
header) so that it is not done until after the magic number check.  This
may well not be a flat format binary, so the flags could be invalid.
(Prime example, running a script).

Changes prompted by patches from Stuart Hughs.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 09:31:27 -08:00
Linus Torvalds
ab396e91bf Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuild
Fix up some trivial conflicts in {i386|ia64}/Makefile
2006-01-10 08:21:33 -08:00
Adrian Bunk
9979ead5d1 [PATCH] fs/hfsplus/: remove the hfsplus_inode_check() debug function
This patch removes the hfsplus_inode_check() debug function.

It also removes the now obsolete last_inode_cnt and inode_cnt from struct
hfsplus_sb_info.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:02:03 -08:00
Jesper Juhl
792db3af38 [PATCH] fs/binfmt_elf: Remove unneeded kmalloc() return value casts
Remove unneeded casts of kmalloc() return value in binfmt_elf.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:02:01 -08:00
Adrian Bunk
3af13763d6 [PATCH] fs/ext3/: small cleanups
This patch contains the following cleanups:
- there's no need for ext3_count_free() #ifndef EXT3FS_DEBUG
- having prototypes for ext3_count_free() in two different headers is
  nonsense

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:56 -08:00
Adrian Bunk
4610a6bea7 [PATCH] fs/ext2/bitmap.c: ext2_count_free() is only required #ifdef EXT2FS_DEBUG
There's no need for ext2_count_free() #ifndef EXT2FS_DEBUG.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:56 -08:00
Jesper Juhl
3c6bee1d40 [PATCH] turn "const static" into "static const"
ICC likes to complain about storage class not being first, GCC doesn't
care much (except for cases like "inline static").
have a hard time seeing how it could break anything.

Thanks to Gabriel A. Devenyi for pointing out
http://linuxicc.sourceforge.net/ which is what made me create this patch.

Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:55 -08:00
Oleg Drokin
e866cfa939 [PATCH] d_instantiate_unique / NFS inode leakage
If we have found aliased dentry that we return, inode reference is not
dropped and inode is not attached anywhere, so it seems the reference to
inode is leaked in that case.

Cc: Trond Myklebust <trond.myklebust@fys.uio.no>,
Cc: <viro@parcelfarce.linux.theplanet.co.uk>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:41 -08:00
Thomas Gleixner
2ff678b8da [PATCH] hrtimer: switch itimers to hrtimer
switch itimers to a hrtimers-based implementation

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:38 -08:00
Christoph Hellwig
7ff92053dd [PATCH] don't include ioctl32.h in drivers
These days ioctl32.h is only used for communication of fs/compat.c and
fs/compat_ioctl.c and doesn't contain anything of interest to drivers.

Remove inclusion in various drivers.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:34 -08:00
Christoph Hellwig
fc33a7bb9c [PATCH] per-mountpoint noatime/nodiratime
Turn noatime and nodiratime into per-mount instead of per-sb flags.

After all the preparations this is a rather trivial patch.  The mount code
needs to treat the two options as per-mount instead of per-superblock, and
touch_atime needs to be changed to check the new MNT_ flags in addition to
the MS_ flags that are kept for filesystems that are always
noatime/nodiratime but not user settable anymore.  Besides that core code
only nfs needed an update because it's leaving atime updates to the server
and thus sets the S_NOATIME flag on every inode, but needs to know whether
it's a real noatime mount for an getattr optimization.

While we're at it I've killed the IS_NOATIME/IS_NODIRATIME macros that were
only used by touch_atime.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:34 -08:00
Christoph Hellwig
0d456fa426 [PATCH] 9p: remove superflous MS_NODIRATIME assignment
MS_NOATIME implies MS_NODIRATIME

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:33 -08:00
Christoph Hellwig
24a44dca35 [PATCH] ntfs: remove superflous MS_NOATIME/MS_NODIRATIME assignments
MS_RDONLU implies not atime updates at all, no need for the MS_NOATIME and
MS_NODIRATIME flags.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:33 -08:00
Christoph Hellwig
e6a6d2efcb [PATCH] sanitize building of fs/compat_ioctl.c
Now that all these entries in the arch ioctl32.c files are gone [1], we can
build fs/compat_ioctl.c as a normal object and kill tons of cruft.  We need a
special do_ioctl32_pointer handler for s390 so the compat_ptr call is done.
This is not needed but harmless on all other architectures.  Also remove some
superflous includes in fs/compat_ioctl.c

Tested on ppc64.

[1] parisc still had it's PPP handler left, which is not fully correct
    for ppp and besides that ppp uses the generic SIOCPRIV ioctl so it'd
    kick in for all netdevice users.  We can introduce a proper handler
    in one of the next patch series by adding a compat_ioctl method to
    struct net_device but for now let's just kill it - parisc doesn't
    compile in mainline anyway and I don't want this to block this
    patchset.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@debian.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:33 -08:00
Christoph Hellwig
ec3cad9690 [PATCH] move rtc compat ioctl handling to fs/compat_ioctl.c
This patch implements generic handling of RTC_IRQP_READ32, RTC_IRQP_SET32,
RTC_EPOCH_READ32 and RTC_EPOCH_SET32 in fs/compat_ioctl.c.  It's based on the
x86_64 code which needed a little massaging to be endian-clean.

parisc used COMPAT_IOCTL or generic w_long handlers for these whichce is wrong
and can't work because the ioctls encode sizeof(unsigned long) in their ioctl
number.  parisc also duplicated COMPAT_IOCTL entries for other rtc ioctls
which I remove in this patch, too.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Matthew Wilcox <matthew@wil.cx>
Acked-by: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:32 -08:00
Christoph Hellwig
869243a0f6 [PATCH] remove update_atime
All callers use touch_atime now which takes a vfsmount and allows us to
implement per-mount noatime.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:31 -08:00
Christoph Hellwig
9cf6f4b3a3 [PATCH] switch autofs4 to touch_atime()
After my lookup_hash patch ->d_revalidate always gets a valid struct nameidata
passed (unless you use lookup_one_len which autofs4 doesn't), so we can switch
it from update_atime to touch_atime.  This is a bit of an academic excercise
because autofs has a 1:1 vfsmount superblock relation, but I want to get rid
of update_atime so filesystems authors can't easily screw up per-mountpoint
noatime support.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Ian Kent <raven@themaw.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:31 -08:00
Christoph Hellwig
870f481793 [PATCH] replace inode_update_time with file_update_time
To allow various options to work per-mount instead of per-sb we need a
struct vfsmount when updating ctime and mtime.  This preparation patch
replaces the inode_update_time routine with a file_update_atime routine so
we can easily get at the vfsmount.  (and the file makes more sense in this
context anyway).  Also get rid of the unused second argument - we always
want to update the ctime when calling this routine.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Anton Altaparmakov <aia21@cantab.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:30 -08:00
Christoph Hellwig
3542c6e18f [PATCH] remove xfs xattr permission checks
remove checks now in the VFS

XFS has an additional xattr interface through obscure ioctl.  it requires
raised capabilities but we need to add some read-only/immutable checks anyway

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: Nathan Scott <nathans@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:30 -08:00
Christoph Hellwig
b98932cb51 [PATCH] remove reiserfs xattr permission checks
remove checks now in the VFS

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:30 -08:00
akpm@osdl.org
c37ef806a3 [PATCH] remove ext3 xattr permission checks
)

From: Christoph Hellwig <hch@lst.de>

remove checks now in the VFS

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:30 -08:00
akpm@osdl.org
267fd05791 [PATCH] remove ext2 xattr permission checks
)

From: Christoph Hellwig <hch@lst.de>

remove checks now in the VFS

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:30 -08:00
Christoph Hellwig
44a0033f6d [PATCH] remove jfs xattr permission checks
remove checks now in the VFS

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:29 -08:00
akpm@osdl.org
e0ad7b073e [PATCH] move xattr permission checks into the VFS
)

From: Christoph Hellwig <hch@lst.de>

The xattr code has rather complex permission checks because the rules are very
different for different attribute namespaces.  This patch moves as much as we
can into the generic code.  Currently all the major disk based filesystems
duplicate these checks, while many minor filesystems or network filesystems
lack some or all of them.

To do this we need defines for the extended attribute names in common code, I
moved them up from JFS which had the nicest defintions.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:29 -08:00
Christoph Hellwig
5be196e5f9 [PATCH] add vfs_* helpers for xattr operations
Add vfs_getxattr, vfs_setxattr and vfs_removexattr helpers for common checks
around invocation of the xattr methods.  NFSD already was missing some of the
checks and there will be more soon.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: James Morris <jmorris@namei.org>

(James, I haven't touched selinux yet because it's doing various odd things
and I'm not sure how it would interact with the security attribute fallbacks
you added.  Could you investigate whether it could use vfs_getxattr or if not
add a __vfs_getxattr helper to share the bits it is fine with?)

For NFSv4: instead of just converting it add an nfsd_getxattr helper for the
code shared by NFSv2/3 and NFSv4 ACLs.  In fact that code isn't even
NFS-specific, but I'll wait for more users to pop up first before moving it to
common code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Dave Kleikamp <shaggy@austin.ibm.com>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Neil Brown <neilb@suse.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:29 -08:00
Maneesh Soni
05970d476f [PATCH] kexec: change CONFIG_PHYSICAL_START dependency
I have heard some complaints about people not finding CONFIG_CRASH_DUMP
option and also some objections about its dependency on CONFIG_EMBEDDED.
The following patch ends that dependency.  I thought of hiding it under
CONFIG_KEXEC, but CONFIG_PHYSICAL_START could also be used for some reasons
other than kexec/kdump and hence left it visible.  I will also update the
documentation accordingly.

o Following patch removes the config dependency of CONFIG_PHYSICAL_START
  on CONFIG_EMBEDDED. The reason being CONFIG_CRASH_DUMP option for
  kdump needs CONFIG_PHYSICAL_START which makes CONFIG_CRASH_DUMP depend
  on CONFIG_EMBEDDED. It is not always obvious for kdump users to choose
  CONFIG_EMBEDDED.

o It also shifts the palce where this option appears, to make it closer
  to kexec and kdump options.

Signed-off-by: Maneesh Soni <maneesh@in.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Haren Myneni <haren@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:29 -08:00
Vivek Goyal
4ae362be50 [PATCH] kdump: read previous kernel's memory
- Moving the crash_dump.c file to arch dependent part as kmap_atomic_pfn is
  specific to i386 and highmem may not exist in other archs.

- Use ioremap for x86_64 to map the previous kernel memory.

- In copy_oldmem_page(), we now directly copy to the user/kernel buffer and
  avoid the unneccesary copy to a kmalloc'd page.

Signed-off-by: Rachita Kothiyal <rachita@in.ibm.com>
Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:28 -08:00
akpm@osdl.org
df2e71fb91 [PATCH] dump_thread() cleanup
)

From: Adrian Bunk <bunk@stusta.de>

- create one common dump_thread() prototype in kernel.h

- dump_thread() is only used in fs/binfmt_aout.c and can therefore be
  removed on all architectures where CONFIG_BINFMT_AOUT is not
  available

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-10 08:01:25 -08:00
Linus Torvalds
80c0531514 Merge master.kernel.org:/pub/scm/linux/kernel/git/mingo/mutex-2.6 2006-01-09 17:31:38 -08:00
Linus Torvalds
a457aa6c2b Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-01-09 17:06:53 -08:00
Ingo Molnar
7892f2f48d [PATCH] mutex subsystem, semaphore to mutex: VFS, sb->s_lock
This patch converts the superblock-lock semaphore to a mutex, affecting
lock_super()/unlock_super(). Tested on ext3 and XFS.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
2006-01-09 15:59:25 -08:00
Jes Sorensen
1b1dcc1b57 [PATCH] mutex subsystem, semaphore to mutex: VFS, ->i_sem
This patch converts the inode semaphore to a mutex. I have tested it on
XFS and compiled as much as one can consider on an ia64. Anyway your
luck with it might be different.

Modified-by: Ingo Molnar <mingo@elte.hu>

(finished the conversion)

Signed-off-by: Jes Sorensen <jes@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2006-01-09 15:59:24 -08:00
Jes Sorensen
794ee1baee [PATCH] mutex subsystem, semaphore to mutex: XFS
This patch switches XFS over to use the new mutex code directly as
opposed to the previous workaround patch I posted earlier that avoided
the namespace clash by forcing it back to semaphores. This falls in the
'works for me<tm>' category.

Signed-off-by: Jes Sorensen <jes@trained-monkey.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2006-01-09 15:59:21 -08:00
Adrian Bunk
943ffb587c spelling: s/retreive/retrieve/
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-10 00:10:13 +01:00
Linus Torvalds
3995f4c532 Merge master.kernel.org:/home/rmk/linux-2.6-arm 2006-01-09 15:09:30 -08:00
Linus Torvalds
f17578decc Merge master.kernel.org:/pub/scm/linux/kernel/git/mchehab/v4l-dvb 2006-01-09 13:03:58 -08:00
Sam Ravnborg
a9aa1ffaac kbuild/xfs: introduce fs/xfs/Kbuild
In kbuild the file named 'Kbuild' has precedence over the file named
Makefile. Utilise a file named Kbuild to include the 2.6 Makefile for xfs
- since the xfs people likes to keep their arch specific Makefiles separate.

With this patch xfs does no longer rely on the KERNELRELEASE components to be global.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-09 20:48:03 +01:00
Russell King
0a3a98f6dd Merge Linus' tree. 2006-01-09 19:18:33 +00:00
Arnd Bergmann
0d0fbf8152 V4L (926_2): Moves compat32 functions from fs to v4l subsystem
This moves the 32 bit ioctl compatibility handlers for
Video4Linux into a new file and adds explicit calls to them
to each v4l device driver.

Unfortunately, there does not seem to be any code handling
the v4l2 ioctls, so quite often the code goes through two
separate conversions, first from 32 bit v4l to 64 bit v4l,
and from there to 64 bit v4l2. My patch does not change
that, so there is still much room for improvement.

Also, some drivers have additional ioctl numbers, for
which the conversion should be handled internally to
that driver.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
2006-01-09 15:24:57 -02:00
Russell King
50365c5786 [ARM] Make Acorn partition types depend on ACORN_PARTITION
balamurugan reported a problem where it was possible to have
the various Acorn partition types selected in the configuration,
but ACORN_PARTITION disabled.  Since ACORN_PARTITION controls
whether we build fs/partitions/acorn.c, this lead to undefined
references to the adfspart_check_TYPE symbols.

Fix this by making the Acorn partition type symbols depend on
ACORN_PARTITION.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-01-09 14:15:14 +00:00
Jens Axboe
0ea60b5ad8 [BLOCK] bio: init ->bi_bdev in bio_init()
For SG_IO requests, bio->bi_bdev may not be explicitly initialized. So make
bio_init() clear the field to make sure it's always NULL or valid.

Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-09 14:45:10 +01:00
Matt Mackall
708e9a794c [PATCH] tiny: Configure ELF core dump support
configurable support for ELF core dumps

   text    data     bss     dec     hex filename
3330172  529036  190556 4049764  3dcb64 vmlinux-baseline
3325552  528912  190556 4045020  3db8dc vmlinux-no-elf

add/remove: 0/8 grow/shrink: 0/0 up/down: 0/-4424 (-4424)
function                                     old     new   delta
fill_note                                     32       -     -32
maydump                                       58       -     -58
dump_seek                                     67       -     -67
writenote                                    180       -    -180
elf_dump_thread_status                       274       -    -274
fill_psinfo                                  308       -    -308
fill_prstatus                                466       -    -466
elf_core_dump                               3039       -   -3039

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:11 -08:00
Matt Mackall
33443c42f4 [PATCH] tiny: Uninline some fslocks.c functions
uninline some file locking functions

add/remove: 3/0 grow/shrink: 0/15 up/down: 256/-1525 (-1269)
function                                     old     new   delta
locks_free_lock                                -     134    +134
posix_same_owner                               -      69     +69
__locks_delete_block                           -      53     +53
posix_locks_conflict                         126     108     -18
locks_remove_posix                           266     237     -29
locks_wake_up_blocks                         121      87     -34
locks_block_on_timeout                        83      47     -36
locks_insert_block                           157     120     -37
locks_delete_block                            62      23     -39
posix_unblock_lock                           104      59     -45
posix_locks_deadlock                         162     100     -62
locks_delete_lock                            228     119    -109
sys_flock                                    338     217    -121
__break_lease                                600     474    -126
lease_init                                   252     122    -130
fcntl_setlk64                                793     649    -144
fcntl_setlk                                  793     649    -144
__posix_lock_file                           1477    1026    -451

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:10 -08:00
Matt Mackall
5d2bea4582 [PATCH] tiny: Uninline some inode.c functions
uninline a couple inode.c functions

add/remove: 2/0 grow/shrink: 0/5 up/down: 256/-428 (-172)
function                                     old     new   delta
ifind                                          -     136    +136
ifind_fast                                     -     120    +120
ilookup5_nowait                              131      80     -51
ilookup                                      158      71     -87
ilookup5                                     171      80     -91
iget_locked                                  190      95     -95
iget5_locked                                 240     136    -104

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:10 -08:00
Matt Mackall
b01ec0ef63 [PATCH] tiny: Uninline some open.c functions
uninline some open.c functions

add/remove: 3/0 grow/shrink: 0/6 up/down: 679/-1166 (-487)
function                                     old     new   delta
do_sys_truncate                                -     336    +336
do_sys_ftruncate                               -     317    +317
__put_unused_fd                                -      26     +26
put_unused_fd                                 57      49      -8
sys_close                                    150     119     -31
sys_ftruncate64                              260      26    -234
sys_ftruncate                                272      24    -248
sys_truncate                                 339      25    -314
sys_truncate64                               336       5    -331

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:10 -08:00
Jan Blunck
bfc090c468 [PATCH] afs: remove unnecessary __attribute__((packed))
Remove the unnecessary __attribute__((packed)) since the enum itself is packed
and not the location of it in the structure.

Signed-off-by: Jan Blunck <jblunck@suse.de>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:07 -08:00
Latchesar Ionkov
1dac06b20d [PATCH] v9fs: handle kthread_create failure, minor bugfixes
- remove unnecessary -ENOMEM assignments
- return correct value when buf_check_size for second time in a buffer
- handle failures when create_workqueue and kthread_create are called
- use kzalloc instead of kmalloc/memset 0
- v9fs_str_copy and v9fs_str_compare were buggy, were used only in one
  place, correct the logic and move it to the place it is used.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:06 -08:00
Latchesar Ionkov
531b1094b7 [PATCH] v9fs: zero copy implementation
Performance enhancement reducing the number of copies in the data and
stat paths.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:06 -08:00
Latchesar Ionkov
d8da097afb [PATCH] v9fs: fix fid management in v9fs_create
v9fs_create doesn't manage correctly the fids when it is called to create a
directory..  The fid created by the create 9P call (newfid) and the one
created by walking to already created file (wfidno) are not used
consistently.

This patch cleans up the usage of newfid and wfidno.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:05 -08:00
Latchesar Ionkov
3cf6429a26 [PATCH] v9fs: new multiplexer implementation
New multiplexer implementation. Decreases the number of kernel threads
required. Better handling when the user process receives a signal.

Signed-off-by: Latchesar Ionkov <lucho@ionkov.net>
Cc: Eric Van Hensbergen <ericvh@ericvh.myip.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:05 -08:00
Eric Van Hensbergen
f5ef3c105b [PATCH] v9fs: fix fd_close
If a 9pfs server crashes, v9fs_fd_close() is called.  Subsequently, in
cleaning up by performing a umount() on the FS that was provided by this
server v9fs_fd_close() is called again, and uses the old, freed valus of
trans->priv.  This patch ensures that trans->priv can be freed only once,
otherwise this function bails early.

Signed-off-by: Michal Ostrowski <mostrows@watson.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:05 -08:00
Evgeniy Polyakov
15b2fe3931 [PATCH] UFS: inode->i_sem is not released in error path
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:04 -08:00
Maciej W. Rozycki
ac34dd0524 [PATCH] fs/smbfs/proc.c: fix data corruption in smb_proc_setattr_unix()
This patch fixes a data corruption in smb_proc_setattr_unix()
(smb_filetype_from_mode() returns an u32, and there are only four bytes
reserved for it in data.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:04 -08:00
Adrian Bunk
fee781e6c2 [PATCH] fs/proc/: function prototypes belong in header files
Function prototypes belong into header files.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:03 -08:00
Andrew Morton
a136564702 [PATCH] remove gcc-2 checks
Remove various things which were checking for gcc-1.x and gcc-2.x compilers.

From: Adrian Bunk <bunk@stusta.de>

    Some documentation updates and removes some code paths for gcc < 3.2.

Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:02 -08:00
Adrian Bunk
ddc0f846aa [PATCH] fs/udf/balloc.c: "extern inline" -> "static inline"
"extern inline" doesn't make much sense.

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:14:01 -08:00
Pekka Enberg
e78c9a004a [PATCH] fs: remove s_old_blocksize from struct super_block
This patch inlines the single user of struct super_block field
s_old_blocksize and removes the field.

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:59 -08:00
David Gibson
dda6ebde96 [PATCH] Fix handling of ELF segments with zero filesize
mmap() returns -EINVAL if given a zero length, and thus elf_map() in
binfmt_elf.c does likewise if it attempts to map a (page-aligned) ELF
segment with zero filesize.  Such a situation never arises with the default
linker scripts, but there's nothing inherently wrong with zero-filesize
(but non-zero memsize) ELF segments.  Custom linker scripts can generate
them, and the kernel should be able to map them; this patch makes it so.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:58 -08:00
Eric Dumazet
5160ee6fc8 [PATCH] shrink dentry struct
Some long time ago, dentry struct was carefully tuned so that on 32 bits
UP, sizeof(struct dentry) was exactly 128, ie a power of 2, and a multiple
of memory cache lines.

Then RCU was added and dentry struct enlarged by two pointers, with nice
results for SMP, but not so good on UP, because breaking the above tuning
(128 + 8 = 136 bytes)

This patch reverts this unwanted side effect, by using an union (d_u),
where d_rcu and d_child are placed so that these two fields can share their
memory needs.

At the time d_free() is called (and d_rcu is really used), d_child is known
to be empty and not touched by the dentry freeing.

Lockless lookups only access d_name, d_parent, d_lock, d_op, d_flags (so
the previous content of d_child is not needed if said dentry was unhashed
but still accessed by a CPU because of RCU constraints)

As dentry cache easily contains millions of entries, a size reduction is
worth the extra complexity of the ugly C union.

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Cc: Dipankar Sarma <dipankar@in.ibm.com>
Cc: Maneesh Soni <maneesh@in.ibm.com>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Paul Jackson <pj@sgi.com>
Cc: Al Viro <viro@ftp.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Cc: James Morris <jmorris@namei.org>
Cc: Stephen Smalley <sds@epoch.ncsc.mil>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:58 -08:00
Jorn Dreyer
21b6bf143d [PATCH] nfsroot: do not silently stop parsing on an unknown option
It would be helpful if the kernel did not silently stop parsing
nfs options, but instead warned about any he does not recognize. The
attached patch adds one printk to do just that.

It took me a couple of hours to find my configuration mistake.

Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:57 -08:00
Oleg Nesterov
850d6fbe70 [PATCH] sigio: cleanup, don't take tasklist twice
The only user of send_sigio_to_task() already holds tasklist_lock, so it is
better not to send the signal via send_group_sig_info() (which takes
tasklist recursively) but use group_send_sig_info().

The same change in send_sigurg()->send_sigurg_to_task().

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:57 -08:00
Glauber de Oliveira Costa
29ba172312 [PATCH] ext3: use sbi instead of EXT3_SB() in resize code.
There are places in the resize code in which EXT3_SB() macro is used after
an statement like sbi = EXT3_SB(sb) is done.  Inside the same function,
both sbi and EXT3_SB() are used to reference the super block Altough it is
not wrong, keeping it coherent increases legibility, IMHO.

Signed-off-by: Glauber de Oliveira Costa <glommer@br.ibm.com>
Cc: "Stephen C. Tweedie" <sct@redhat.com>
Cc: Andreas Dilger <adilger@clusterfs.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:56 -08:00
Glauber de Oliveira Costa
9f40668d7d [PATCH] ext3: remove trailing newlines from ext3_warning() calls
Remove the trailing newlines in calls to ext3_warning().  This function
already adds a trailing newline to the end of messages.

Signed-off-by: Glauber de Oliveira Costa <glommer@br.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:56 -08:00
Johann Lombardi
71b9625744 [PATCH] ext3: external journal device as a mount option
The patch below adds a new mount option to allow the external journal
device to be specified.

The syntax is as follows:
# mount -t ext3 -o journal_dev=0x0820 ...
where 0x0820 means major=8 and minor=32.

Signed-off-by: Johann Lombardi <johann.lombardi@bull.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:56 -08:00
Miklos Szeredi
bf066c7db7 [PATCH] shared mounts: cleanup
Small cleanups in shared mounts code.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Cc: Ram Pai <linuxram@us.ibm.com>
Cc: <viro@parcelfarce.linux.theplanet.co.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:56 -08:00
Neil Brown
4a0d11fae5 [PATCH] pivot_root: add comment
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:55 -08:00
Oleg Nesterov
bb6f6dbaa4 [PATCH] do_coredump() should reset group_stop_count earlier
__group_complete_signal() sets ->group_stop_count in sig_kernel_coredump()
path and marks the target thread as ->group_exit_task.  So any thread
except group_exit_task will go to handle_group_stop()->finish_stop().

However, when group_exit_task actually starts do_coredump(), it sets
SIGNAL_GROUP_EXIT, but does not reset ->group_stop_count while killing
other threads.  If we have not yet stopped threads in the same thread
group, they all will spin in kernel mode until group_exit_task sends them
SIGKILL, because ->group_stop_count > 0 means:

	recalc_sigpending_tsk() never clears TIF_SIGPENDING

	get_signal_to_deliver() goes to handle_group_stop()

	handle_group_stop() returns when SIGNAL_GROUP_EXIT set

	syscall_exit/resume_userspace notice TIF_SIGPENDING,
	call get_signal_to_deliver() again.

So we are wasting cpu cycles, and if one of these threads is rt_task() this
may be a serious problem.

NOTE: do_coredump() holds ->mmap_sem, so not stopped threads can't escape
coredumping after clearing ->group_stop_count.

See also this thread: http://marc.theaimsgroup.com/?t=112739139900002

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:55 -08:00
Andrew Morton
54b21a7992 [PATCH] fix possible PAGE_CACHE_SHIFT overflows
We've had two instances recently of overflows when doing

	64_bit_value = (32_bit_value << PAGE_CACHE_SHIFT)

I did a tree-wide grep of `<<.*PAGE_CACHE_SHIFT' and this is the result.

- afs_rxfs_fetch_descriptor.offset is of type off_t, which seems broken.

- jfs and jffs are limited to 4GB anyway.

- reiserfs map_block_for_writepage() takes an unsigned long for the block -
  it should take sector_t.  (It'll fail for huge filesystems with
  blocksize<PAGE_CACHE_SIZE)

- cramfs_read() needs to use sector_t (I think cramsfs is busted on large
  filesystems anyway)

- affs is limited in file size anyway.

- I generally didn't fix 32-bit overflows in directory operations.

- arm's __flush_dcache_page() is peculiar.  What if the page lies beyond 4G?

- gss_wrap_req_priv() needs checking (snd_buf->page_base)

Cc: Oleg Drokin <green@linuxhacker.ru>
Cc: David Howells <dhowells@redhat.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: <reiserfs-dev@namesys.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Anton Altaparmakov <aia21@cantab.net>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Cc: Roman Zippel <zippel@linux-m68k.org>
Cc: <linux-fsdevel@vger.kernel.org>
Cc: Miklos Szeredi <miklos@szeredi.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:54 -08:00
NeilBrown
2520f14ca8 [PATCH] Fix overflow tests for compat_sys_fcntl64 locking
When making an fctl locking call through compat_sys_fcntl64 (i.e.  a 32bit
app on a 64bit kernel), the syscall can return a locking range that is in
conflict with the queried lock.

If some aspect of this range does not fit in the 32bit structure, something
needs to be done.

The current code is wrong in several respects:

- It returns data to userspace even if no conflict was found
   i.e. it should check l_type for F_UNLCK
- It returns -EOVERFLOW too agressively.   A lock range covering
  the last possible byte of the file (start = COMPAT_OFF_T_MAX,
  len = 1) should be possible, but is rejected with the current test.
- A extra-long 'len' should not be a problem.  If only that part
  of the conflicting lock that would be visible to the 32bit
  app needs to be reported to the 32bit app anyway.

This patch addresses those three issues and adds a comment to (hopefully)
record it for posterity.

Note: this patch mainly affects test-cases.  Real applications rarely is
ever see the problems.

This patch has been tested (LSB test suite), and works.

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Matthew Wilcox <willy@debian.org>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:52 -08:00
NeilBrown
4a30131e7d [PATCH] Fix some problems with truncate and mtime semantics.
SUS requires that when truncating a file to the size that it currently
is:
  truncate and ftruncate should NOT modify ctime or mtime
  O_TRUNC SHOULD modify ctime and mtime.

Currently mtime and ctime are always modified on most local
filesystems (side effect of ->truncate) or never modified (on NFS).

With this patch:
  ATTR_CTIME|ATTR_MTIME are sent with ATTR_SIZE precisely when
    an update of these times is required whether size changes or not
    (via a new argument to do_truncate).  This allows NFS to do
    the right thing for O_TRUNC.
  inode_setattr nolonger forces ATTR_MTIME|ATTR_CTIME when the ATTR_SIZE
    sets the size to it's current value.  This allows local filesystems
    to do the right thing for f?truncate.

Also, the logic in inode_setattr is changed a bit so there are two return
points.  One returns the error from vmtruncate if it failed, the other
returns 0 (there can be no other failure).

Finally, if vmtruncate succeeds, and ATTR_SIZE is the only change
requested, we now fall-through and mark_inode_dirty.  If a filesystem did
not have a ->truncate function, then vmtruncate will have changed i_size,
without marking the inode as 'dirty', and I think this is wrong.

Signed-off-by: Neil Brown <neilb@suse.de>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:52 -08:00
Christoph Hellwig
b8b0af2435 [PATCH] udf: remove bogus inode == NULL check in inode_bmap
inode can never be NULL when calling this function.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:51 -08:00
Tom Zanussi
761da5c88a [PATCH] relayfs: cleanup, change relayfs_file_* to relay_file_*
This patch renames relayfs_file_operations to relay_file_operations, and the
file operations themselves from relayfs_XXX to relay_file_XXX, to make it more
clear that they refer to relay files.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:51 -08:00
Tom Zanussi
e6c08367b8 [PATCH] relayfs: add support for global relay buffers
This patch adds the optional is_global outparam to the create_buf_file()
callback.  This can be used by clients to create a single global relayfs
buffer instead of the default per-cpu buffers.  This was suggested as being
useful for certain debugging applications where it's more convenient to be
able to get all the data from a single channel without having to go to the
bother of dealing with per-cpu files.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:50 -08:00
Tom Zanussi
08c541a7ad [PATCH] relayfs: add support for relay files in other filesystems
This patch adds a couple of callback functions that allow a client to hook
into relay_open()/close() and supply the files that will be used to represent
the channel buffers; the default implementation if no callbacks are defined is
to create the files in relayfs.  This is to support the creation and use of
relay files in other filesystems such as debugfs, as implied by the fact that
relayfs_file_operations are exported.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:50 -08:00
Tom Zanussi
aaea25d7a6 [PATCH] relayfs: remove unused alloc/destroy_inode()
Since we're no longer using relayfs_inode_info, remove relayfs_alloc_inode()
and relayfs_destroy_inode() along with the relayfs inode cache.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:50 -08:00
Tom Zanussi
51008f9f95 [PATCH] relayfs: use generic_ip for private data
Use inode->u.generic_ip instead of relayfs_inode_info to store pointer to user
data.  Clients using relayfs_file_create() to create their own files would
probably more expect their data to be stored in generic_ip; we also intend in
the next set of patches to get rid of relayfs-specific stuff in the file
operations, so we might as well do it here.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:49 -08:00
Tom Zanussi
7431733791 [PATCH] relayfs: add relayfs_remove_file()
This patch adds and exports relayfs_remove_file(), for API symmetry (with
relayfs_create_file()).

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:49 -08:00
Tom Zanussi
907f2c77d1 [PATCH] relayfs: export relayfs_create_file() with fileops param
This patch adds a mandatory fileops param to relayfs_create_file() and exports
that function so that clients can use it to create files defined by their own
set of file operations, in relayfs.  The purpose is to allow relayfs
applications to create their own set of 'control' files alongside their relay
files in relayfs rather than having to create them in /proc or debugfs for
instance.  relayfs_create_file() is also used by relay_open_buf() to create
the relay files for a channel.  In this case, a pointer to
relayfs_file_operations is passed in, along with a pointer to the buffer
associated with the file.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:49 -08:00
Tom Zanussi
6625b861f8 [PATCH] relayfs: decouple buffer creation from inode creation
The patch series implementa or fixes 3 things that were specifically requested
or suggested by relayfs users:

- support for non-relay files (patches 1-6)

Currently, the relayfs API only supports the creation of directories
(relayfs_create_dir()) and relay files (relay_open()).  These patches adds
support for non-relay files (relayfs_create_file()).  This is so relayfs
applications can create 'control files' in relayfs itself rather than in /proc
or via a netlink channel, as is currently done in the relay-app examples.
Basically what this amounts to is exporting relayfs_create_file() with an
additional file_ops param that clients can use to supply file operations for
their own special-purpose files in relayfs.

- make exported relay file ops useful (patches 7-8)

The relayfs relay_file_operations have always been exported, the intent being
to make it possible to create relay files in other filesystems such as
debugfs.  The problem, though, is that currently the file operations are too
tightly coupled to relayfs to actually be used for this purpose.  This patch
fixes that by adding a couple of callback functions that allow a client to
hook into relay_open()/close() and supply the files that will be used to
represent the channel buffers; the default implementation if no callbacks are
defined is to create the files in relayfs.

- add an option to create global relay buffer (patches 9-10) The file creation
callback also supplies an optional param, is_global, that can be used by
clients to create a single global relayfs buffer instead of the default
per-cpu buffers.  This was suggested as being useful for certain debugging
applications where it's more convenient to be able to get all the data from a
single channel without having to go to the bother of dealing with per-cpu
files.

- cleanup, some renaming and Documentation updates (patches 11-12)

There were several comments that the use of netlink in the example code was
non-intuitive and in fact the whole relay-app business was needlessly
confusing.  Based on that feedback, the example code has been completely
converted over to relayfs control files as supported by this patch, and have
also been made completely self-contained.

The converted examples along with a couple of new examples that demonstrate
using exported relay files can be found in relay-apps tarball:
http://prdownloads.sourceforge.net/relayfs/relay-apps-0.9.tar.gz?download

This patch:

Separate buffer create/destroy from inode create/destroy.  We want to be able
to associate other data and not just relay buffers with inodes.  Buffer
create/destroy is moved out of inode.c and into relayfs core code.

Signed-off-by: Tom Zanussi <zanussi@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:49 -08:00
Nick Piggin
095975da26 [PATCH] rcu file: use atomic primitives
Use atomic_inc_not_zero for rcu files instead of special case rcuref.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: "Paul E. McKenney" <paulmck@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:48 -08:00
OGAWA Hirofumi
28fd129827 [PATCH] Fix and add EXPORT_SYMBOL(filemap_write_and_wait)
This patch add EXPORT_SYMBOL(filemap_write_and_wait) and use it.

See mm/filemap.c:

And changes the filemap_write_and_wait() and filemap_write_and_wait_range().

Current filemap_write_and_wait() doesn't wait if filemap_fdatawrite()
returns error.  However, even if filemap_fdatawrite() returned an
error, it may have submitted the partially data pages to the device.
(e.g. in the case of -ENOSPC)

<quotation>
Andrew Morton writes,

If filemap_fdatawrite() returns an error, this might be due to some
I/O problem: dead disk, unplugged cable, etc.  Given the generally
crappy quality of the kernel's handling of such exceptions, there's a
good chance that the filemap_fdatawait() will get stuck in D state
forever.
</quotation>

So, this patch doesn't wait if filemap_fdatawrite() returns the -EIO.

Trond, could you please review the nfs part?  Especially I'm not sure,
nfs must use the "filemap_fdatawrite(inode->i_mapping) == 0", or not.

Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:47 -08:00
OGAWA Hirofumi
05eb0b51fb [PATCH] fat: support a truncate() for expanding size (generic_cont_expand)
This patch changes generic_cont_expand(), in order to share the code
with fatfs.

  - Use vmtruncate() if ->prepare_write() returns a error.

Even if ->prepare_write() returns an error, it may already have added some
blocks.  So, this truncates blocks outside of ->i_size by vmtruncate().

  - Add generic_cont_expand_simple().

The generic_cont_expand_simple() assumes that ->prepare_write() can handle
the block boundary.  With this, we don't need to care the extra byte.

And for expanding a file size by truncate(), fatfs uses the
added generic_cont_expand_simple().

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:47 -08:00
OGAWA Hirofumi
e5174baaea [PATCH] fat: support ->direct_IO()
This patch add to support of ->direct_IO() for mostly read.

The user of this seems to want to use for streaming read.  So, current direct
I/O has limitation, it can only overwrite.  (For write operation, mainly we
need to handle the hole etc..)

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:46 -08:00
OGAWA Hirofumi
7c709d00d6 [PATCH] fat: s/EXPORT_SYMBOL/EXPORT_SYMBOL_GPL/
All EXPORT_SYMBOL of fatfs is only for vfat/msdos. _GPL would be proper.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:46 -08:00
OGAWA Hirofumi
a5425d2927 [PATCH] fat: add the read/writepages()
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:46 -08:00
OGAWA Hirofumi
83b7c996dc [PATCH] fat: use sb_find_get_block() instead of sb_getblk()
We don't need to allocate buffer for checking the buffer is uptodate.  This
use sb_find_get_block() instead, and if it returns NULL it's not uptodate.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:46 -08:00
OGAWA Hirofumi
a6bf6b211c [PATCH] fat: move fat_clusters_flush() to write_super()
It is overkill to update the FS_INFO whenever modifying
prev_free/free_clusters, because those are just a hint.

So, this patch uses ->write_super() for updating FS_INFO instead.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:46 -08:00
Matt Mackall
10cef60295 [PATCH] slob: introduce the SLOB allocator
configurable replacement for slab allocator

This adds a CONFIG_SLAB option under CONFIG_EMBEDDED.  When CONFIG_SLAB is
disabled, the kernel falls back to using the 'SLOB' allocator.

SLOB is a traditional K&R/UNIX allocator with a SLAB emulation layer,
similar to the original Linux kmalloc allocator that SLAB replaced.  It's
signicantly smaller code and is more memory efficient.  But like all
similar allocators, it scales poorly and suffers from fragmentation more
than SLAB, so it's only appropriate for small systems.

It's been tested extensively in the Linux-tiny tree.  I've also
stress-tested it with make -j 8 compiles on a 3G SMP+PREEMPT box (not
recommended).

Here's a comparison for otherwise identical builds, showing SLOB saving
nearly half a megabyte of RAM:

$ size vmlinux*
   text    data     bss     dec     hex filename
3336372  529360  190812 4056544  3de5e0 vmlinux-slab
3323208  527948  190684 4041840  3dac70 vmlinux-slob

$ size mm/{slab,slob}.o
   text    data     bss     dec     hex filename
  13221     752      48   14021    36c5 mm/slab.o
   1896      52       8    1956     7a4 mm/slob.o

/proc/meminfo:
                  SLAB          SLOB      delta
MemTotal:        27964 kB      27980 kB     +16 kB
MemFree:         24596 kB      25092 kB    +496 kB
Buffers:            36 kB         36 kB       0 kB
Cached:           1188 kB       1188 kB       0 kB
SwapCached:          0 kB          0 kB       0 kB
Active:            608 kB        600 kB      -8 kB
Inactive:          808 kB        812 kB      +4 kB
HighTotal:           0 kB          0 kB       0 kB
HighFree:            0 kB          0 kB       0 kB
LowTotal:        27964 kB      27980 kB     +16 kB
LowFree:         24596 kB      25092 kB    +496 kB
SwapTotal:           0 kB          0 kB       0 kB
SwapFree:            0 kB          0 kB       0 kB
Dirty:               4 kB         12 kB      +8 kB
Writeback:           0 kB          0 kB       0 kB
Mapped:            560 kB        556 kB      -4 kB
Slab:             1756 kB          0 kB   -1756 kB
CommitLimit:     13980 kB      13988 kB      +8 kB
Committed_AS:     4208 kB       4208 kB       0 kB
PageTables:         28 kB         28 kB       0 kB
VmallocTotal:  1007312 kB    1007312 kB       0 kB
VmallocUsed:        48 kB         48 kB       0 kB
VmallocChunk:  1007264 kB    1007264 kB       0 kB

(this work has been sponsored in part by CELF)

From: Ingo Molnar <mingo@elte.hu>

   Fix 32-bitness bugs in mm/slob.c.

Signed-off-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:41 -08:00
Ingo Molnar
e56d090310 [PATCH] RCU signal handling
RCU tasklist_lock and RCU signal handling: send signals RCU-read-locked
instead of tasklist_lock read-locked.  This is a scalability improvement on
SMP and a preemption-latency improvement under PREEMPT_RCU.

Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Acked-by: William Irwin <wli@holomorphy.com>
Cc: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:40 -08:00
David Howells
2919b51075 [PATCH] frv: suppress configuration of certain features for FRV
Suppress configuration of certain features for the FRV arch as they can't be
built for FRV at the moment:

 (*) RTC

 (*) HISAX_*

 (*) PARPORT_PC

 (*) VGA_CONSOLE

 (*) BINFMT_ELF

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:13:36 -08:00
Steve French
f3f6ec4b77 [CIFS] Fix cifs trying to write to f_ops
patch 2ea55c01e0 fixed CIFS clobbering the
global fops structure for some per mount setting, by duplicating and having
2 fops structs. However the write to the fops was left behind, which is a
NOP in practice (due to the fact that we KNOW the fops has that field set
to NULL already due to the duplication). So remove it... In addition, another
instance of the same bug was forgotten in november.

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-08 20:12:58 -08:00
Christoph Lameter
1a75a6c825 [PATCH] Fold numa_maps into mempolicies.c
First discussed at http://marc.theaimsgroup.com/?t=113149255100001&r=1&w=2

- Use the check_range() in mempolicy.c to gather statistics.

- Improve the numa_maps code in general and fix some comments.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@muc.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:12:44 -08:00
Andrew Morton
9d0243bca3 [PATCH] drop-pagecache
Add /proc/sys/vm/drop_caches.  When written to, this will cause the kernel to
discard as much pagecache and/or reclaimable slab objects as it can.  THis
operation requires root permissions.

It won't drop dirty data, so the user should run `sync' first.

Caveats:

a) Holds inode_lock for exorbitant amounts of time.

b) Needs to be taught about NUMA nodes: propagate these all the way through
   so the discarding can be controlled on a per-node basis.

This is a debugging feature: useful for getting consistent results between
filesystem benchmarks.  We could possibly put it under a config option, but
it's less than 300 bytes.

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-08 20:12:40 -08:00
Steve French
a6230af7bd [CIFS] Minor cleanup to new cifs acl header.
Signed-off-by: Steve French <sfrench@us.ibm.com>
2006-01-08 20:04:55 -08:00
Linus Torvalds
47853e7fa5 Merge git://git.linux-nfs.org/pub/linux/nfs-2.6 2006-01-06 15:22:57 -08:00
Evgeniy
221fc10ec8 [PATCH] fs/ufs: debug mode compilation failure
This patch should fix compilation failure of fs/ufs/dir.c with defined UFS_DIR_DEBUG

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 15:22:28 -08:00
Trond Myklebust
26c78e156b NFSv4: Fix an Oops in nfs_do_expire_all_delegations
If the loop errors, we need to exit.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:58 -05:00
Trond Myklebust
58df095b73 NFSv4: Allow entries in the idmap cache to expire
If someone changes the uid/gid mapping in userland, then we do eventually
 want those changes to be propagated to the kernel. Currently the kernel
 assumes that it may cache entries forever.

 Add an expiration time + garbage collector for idmap entries.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:58 -05:00
Trond Myklebust
eadb8c1471 NFS: get rid of some needless code obfuscation in xdr_encode_sattr().
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:57 -05:00
Trond Myklebust
cf3fff54a4 NFS: Send valid mode bits to the server
inode->i_mode contains a lot more than just the mode bits. Make sure that
 we mask away this extra stuff in SETATTR calls to the server.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:57 -05:00
Chuck Lever
f518e35aec SUNRPC: get rid of cl_chatty
Clean up: Every ULP that uses the in-kernel RPC client, except the NLM
 client, sets cl_chatty.  There's no reason why NLM shouldn't set it, so
 just get rid of cl_chatty and always be verbose.

 Test-plan:
 Compile with CONFIG_NFS enabled.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:56 -05:00
Chuck Lever
35f5a422ce SUNRPC: new interface to force an RPC rebind
We'd like to hide fields in rpc_xprt and rpc_clnt from upper layer protocols.
 Start by creating an API to force RPC rebind, replacing logic that simply
 sets cl_port to zero.

 Test-plan:
 Destructive testing (unplugging the network temporarily).  Connectathon
 with UDP and TCP.  NFSv2/3 and NFSv4 mounting should be carefully checked.
 Probably need to rig a server where certain services aren't running, or
 that returns an error for some typical operation.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:56 -05:00
J. Bruce Fields
03c2173393 NFSv3: try get_root user-supplied security_flavor
Thanks to Ed Keizer for bug and root cause.  He says: "... we could only mount
 the top-level Solaris share. We could not mount deeper into the tree.
 Investigation showed that Solaris allows UNIX authenticated FSINFO only on the
 top level of the share. This is a problem because we share/export our home
 directories one level higher than we mount them. I.e. we share the partition
 and not the individual home directories. This prevented access to home
 directories."

 We still may need to try auth_sys for the case where the client doesn't have
 appropriate credentials.

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:55 -05:00
J. Bruce Fields
a659753ecc NLM: fix parsing of sm notify procedure
The procedure that decodes statd sm_notify call seems to be skipping a
 few arguments.  How did this ever work?

 >From folks at Polyserve.

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:54 -05:00
J. Bruce Fields
64a318ee2a NLM: Further cancel fixes
If the server receives an NLM cancel call and finds no waiting lock to
 cancel, then chances are the lock has already been applied, and the client
 just hadn't yet processed the NLM granted callback before it sent the
 cancel.

 The Open Group text, for example, perimts a server to return either success
 (LCK_GRANTED) or failure (LCK_DENIED) in this case.  But returning an error
 seems more helpful; the client may be able to use it to recognize that a
 race has occurred and to recover from the race.

 So, modify the relevant functions to return an error in this case.

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:54 -05:00
J. Bruce Fields
2c5acd2e1a NLM: clean up nlmsvc_delete_block
The fl_next check here is superfluous (and possibly a layering violation).

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:54 -05:00
J. Bruce Fields
5996a298da NLM: don't unlock on cancel requests
Currently when lockd gets an NLM_CANCEL request, it also does an unlock for
 the same range.  This is incorrect.

 The Open Group documentation says that "This procedure cancels an
 *outstanding* blocked lock request."  (Emphasis mine.)

 Also, consider a client that holds a lock on the first byte of a file, and
 requests a lock on the entire file.  If the client cancels that request
 (perhaps because the requesting process is signalled), the server shouldn't
 apply perform an unlock on the entire file, since that will also remove the
 previous lock that the client was already granted.

 Or consider a lock request that actually *downgraded* an exclusive lock to
 a shared lock.

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:53 -05:00
J. Bruce Fields
f232142cc2 NLM: Clean up nlmsvc_grant_reply locking
Slightly simpler logic here makes it more trivial to verify that the up's
 and down's are balanced here.  Break out an assignment from a conditional
 while we're at it.

 Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:53 -05:00
Trond Myklebust
a72b44222d NFSv4: Allow user to set the port used by the NFSv4 callback channel
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:52 -05:00
Trond Myklebust
a895b4a198 NFS: Clean up weak cache consistency code
...and ensure that nfs_update_inode() respects wcc

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:52 -05:00
Trond Myklebust
fa178f29c0 NFSv4: Ensure DELEGRETURN returns attributes
Upon return of a write delegation, the server will almost always bump the
 change attribute. Ensure that we pick up that change so that we don't
 invalidate our data cache unnecessarily.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:51 -05:00
Trond Myklebust
beb2a5ec38 NFSv4: Ensure change attribute returned by GETATTR callback conforms to spec
According to RFC3530 we're supposed to cache the change attribute
 at the time the client receives a write delegation.
 If the inode is clean, a CB_GETATTR callback by the server to the
 client is supposed to return the cached change attribute.
 If, OTOH, the inode is dirty, the client should bump the cached
 change attribute by 1.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:51 -05:00
Trond Myklebust
566dd6064e NFS: Make directIO aware of compound pages...
...and avoid calling set_page_dirty on them

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:50 -05:00
Trond Myklebust
70b9ecbdb9 NFS: Make stat() return updated mtimes after a write()
The SuS states that a call to write() will cause mtime to be updated on
 the file. In order to satisfy that requirement, we need to flush out
 any cached writes in nfs_getattr().
 Speed things up slightly by not committing the writes.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:50 -05:00
Trond Myklebust
24174119c7 NFSv4: Ensure that we return the delegation on the target of a rename too.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:50 -05:00
Chuck Lever
40859d7ee6 NFS: support large reads and writes on the wire
Most NFS server implementations allow up to 64KB reads and writes on the
 wire.  The Solaris NFS server allows up to a megabyte, for instance.

 Now the Linux NFS client supports transfer sizes up to 1MB, too.  This will
 help reduce protocol and context switch overhead on read/write intensive NFS
 workloads, and support larger atomic read and write operations on servers
 that support them.

 Test-plan:
 Connectathon and iozone on mount point with wsize=rsize>32768 over TCP.
 Tests with NFS over UDP to verify the maximum RPC payload size cap.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:49 -05:00
Chuck Lever
325cfed9ae NFS: make "inode number mismatch" message more useful
To help NFS users and server developers, make the "inode number mismatch"
 message display more useful information.

 Test-plan:
 None.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:49 -05:00
Chuck Lever
dc20f80390 NFS: get rid of useless kernel log message
nfs_statfs() generates a log message when GETATTR returns an error.  This
 is usually a useless message.  Make it a dprintk.

 Test plan:
 None

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:48 -05:00
Chuck Lever
6b59a75460 NFS: Fix error recovery code in fs/nfs/inode.c:__init_nfs()
Red Hat found a problem in the error recovery logic in __init_nfs.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:48 -05:00
Chuck Lever
ce1a8e6796 NFS: use generic_write_checks() to sanity check direct writes
Replace ad hoc write parameter sanity checking in nfs_file_direct_write()
 with a call to generic_write_checks().  This should make the proper checks
 modulo the O_LARGEFILE flag, and should catch NFSv2-specific limitations by
 virtue of i_sb->s_maxbytes.

 Test plan:
 Posix compliance testing with both NFSv2 and NFSv3.

 Signed-off-by: Chuck Lever <cel@netapp.com>
 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:47 -05:00
Trond Myklebust
286d7d6a0c NFSv4: Remove requirement for machine creds for the "setclientid" operation
Use a cred from the nfs4_client->cl_state_owners list.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:47 -05:00
Trond Myklebust
b4454fe1a7 NFSv4: Remove requirement for machine creds for the "renew" operation
In RFC3530, the RENEW operation is allowed to use either

 the same principal, RPC security flavour and (if RPCSEC_GSS), the same
  mechanism and service that was used for SETCLIENTID_CONFIRM

 OR

 Any principal, RPC security flavour and service combination that
 currently has an OPEN file on the server.

 Choose the latter since that doesn't require us to keep credentials for
 the same principal for the entire duration of the mount.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:47 -05:00
Trond Myklebust
58d9714a44 NFSv4: Send RENEW requests to the server only when we're holding state
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:46 -05:00
Trond Myklebust
5043e900f5 NFS: Convert instances of kernel_thread() to kthread()
Convert private implementations in NFSv4 state recovery and delegation
 code to use kthreads.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:46 -05:00
Trond Myklebust
433fbe4c88 NFSv4: State recovery cleanup
Use wait_on_bit() when waiting for state recovery to complete.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:45 -05:00
Trond Myklebust
26e976a884 NFSv4: OPEN/LOCK/LOCKU/CLOSE will automatically renew the NFSv4 lease
Cut down on the number of unnecessary RENEW requests on the wire.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:45 -05:00
Trond Myklebust
2bd615797e SUNRPC: Ensure that SIGKILL will always terminate a synchronous RPC call.
...and make sure that the "intr" flag also enables SIGHUP and SIGTERM to
 interrupt RPC calls too (as per the Solaris implementation).

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:45 -05:00
Trond Myklebust
fe650407a8 NFSv4: Make DELEGRETURN an interruptible operation.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:44 -05:00
Trond Myklebust
a5d16a4d09 NFSv4: Convert LOCK rpc call into an asynchronous RPC call
In order to allow users to interrupt/cancel it.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:44 -05:00
Trond Myklebust
911d1aaf26 NFSv4: locking XDR cleanup
Get rid of some unnecessary intermediate structures

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:44 -05:00
Trond Myklebust
864472e9b8 NFSv4: Make open recovery track O_RDWR, O_RDONLY and O_WRONLY correctly
When recovering from a delegation recall or a network partition, we need
 to replay open(O_RDWR), open(O_RDONLY) and open(O_WRONLY) separately.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:43 -05:00
Trond Myklebust
e761692381 NFSv4: Make nfs4_state track O_RDWR, O_RDONLY and O_WRONLY separately
A closer reading of RFC3530 reveals that OPEN_DOWNGRADE must always
 specify a access modes that have been the argument of a previous OPEN
 operation.
 IOW: doing OPEN(O_RDWR) and then OPEN_DOWNGRADE(O_WRONLY) is forbidden
 unless the user called OPEN(O_WRONLY)

 In order to fix that, we really need to track the three possible open
 states separately.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:43 -05:00
Trond Myklebust
cdd4e68b5f NFSv4: Make open_confirm() asynchronous too
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:42 -05:00
Trond Myklebust
24ac23ab88 NFSv4: Convert open() into an asynchronous RPC call
OPEN is a stateful operation, so we must ensure that it always
 completes. In order to allow users to interrupt the operation,
 we need to make the RPC call asynchronous, and then wait on
 completion (or cancel).

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:42 -05:00
Trond Myklebust
e56e0b78eb NFSv4: Allocate OPEN call RPC arguments using kmalloc()
Cleanup in preparation for making OPEN calls interruptible by the user.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:41 -05:00
Trond Myklebust
06f814a3ad NFSv4: Make locku use the new RPC "wait on completion" interface.
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:40 -05:00
Trond Myklebust
44c288732f NFSv4: stateful NFSv4 RPC call interface
The NFSv4 model requires us to complete all RPC calls that might
 establish state on the server whether or not the user wants to
 interrupt it. We may also need to schedule new work (including
 new RPC calls) in order to cancel the new state.

 The asynchronous RPC model will allow us to ensure that RPC calls
 always complete, but in order to allow for "synchronous" RPC, we
 want to add the ability to wait for completion.
 The waits are, of course, interruptible.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:40 -05:00
Trond Myklebust
4ce70ada1f SUNRPC: Further cleanups
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:40 -05:00
Trond Myklebust
963d8fe533 RPC: Clean up RPC task structure
Shrink the RPC task structure. Instead of storing separate pointers
 for task->tk_exit and task->tk_release, put them in a structure.

 Also pass the user data pointer as a parameter instead of passing it via
 task->tk_calldata. This enables us to nest callbacks.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:39 -05:00
Trond Myklebust
abd3e641d5 NFS: Work correctly with single-page ->writepage() calls
Ensure that we always initiate flushing of data before we exit
 a single-page ->writepage() call.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-01-06 14:58:39 -05:00
Linus Torvalds
d99cf9d679 Merge branch 'post-2.6.15' of git://brick.kernel.dk/data/git/linux-2.6-block
Manual fixup for merge with Jens' "Suspend support for libata", commit
ID 9b84754866.

Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 09:01:25 -08:00
Neil Brown
9f708e40fe [PATCH] knfsd: reduce stack consumption
A typical nfsd call trace is
 nfsd -> svc_process -> nfsd_dispatch -> nfsd3_proc_write ->
   nfsd_write ->nfsd_vfs_write -> vfs_writev

These add up to over 300 bytes on the stack.
Looking at each of these, I see that nfsd_write (which includes
 nfsd_vfs_write) contributes 0x8c to stack usage itself!!

It turns out this is because it puts a 'struct iattr' on the stack so
it can kill suid if needed.  The following patch saves about 50 bytes
off the stack in this call path.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:59 -08:00
David Shaw
a334de2866 [PATCH] knfsd: check error status from vfs_getattr and i_op->fsync
Both vfs_getattr and i_op->fsync return error statuses which nfsd was
largely ignoring.  This as noticed when exporting directories using fuse.

This patch cleans up most of the offences, which involves moving the call
to vfs_getattr out of the xdr encoding routines (where it is too late to
report an error) into the main NFS procedure handling routines.

There is still a called to vfs_gettattr (related to the ACL code) where the
status is ignored, and called to nfsd_sync_dir don't check return status
either.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:59 -08:00
Jan Kara
f93ea411b7 [PATCH] jbd: split checkpoint lists
Split the checkpoint list of the transaction into two lists.  In the first
list we keep the buffers that need to be submitted for IO.  In the second
list are kept buffers that were already submitted and we just have to wait
for the IO to complete.  This should simplify a handling of checkpoint
lists a bit and can eventually be also a performance gain.

Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:59 -08:00
Miklos Szeredi
39ee059aff [PATCH] fuse: check file type in lookup
Previously invalid types were quietly changed to regular files, but at
revalidation the inode was changed to bad.  This was rather inconsistent
behavior.

Now check if the type is valid on initial lookup, and return -EIO if not.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:56 -08:00
Miklos Szeredi
6ad84acab9 [PATCH] fuse: ensure progress in read and write
In direct_io mode, send at least one page per reqest.  Previously it was
possible that reqests with zero data were sent, and hence the read/write
didn't make any progress, resulting in an infinite (though interruptible)
loop.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:56 -08:00
Miklos Szeredi
3ec870d524 [PATCH] fuse: make maximum write data configurable
Make the maximum size of write data configurable by the filesystem.  The
previous fixed 4096 limit only worked on architectures where the page size is
less or equal to this.  This change make writing work on other architectures
too, and also lets the filesystem receive bigger write requests in direct_io
mode.

Normal writes which go through the page cache are still limited to a page
sized chunk per request.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:56 -08:00
Miklos Szeredi
1d3d752b47 [PATCH] fuse: clean up request size limit checking
Change the way a too large request is handled.  Until now in this case the
device read returned -EINVAL and the operation returned -EIO.

Make it more flexibible by not returning -EINVAL from the read, but restarting
it instead.

Also remove the fixed limit on setxattr data and let the filesystem provide as
large a read buffer as it needs to handle the extended attribute data.

The symbolic link length is already checked by VFS to be less than PATH_MAX,
so the extra check against FUSE_SYMLINK_MAX is not needed.

The check in fuse_create_open() against FUSE_NAME_MAX is not needed, since the
dentry has already been looked up, and hence the name already checked.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:56 -08:00
Miklos Szeredi
248d86e87d [PATCH] fuse: fail file operations on bad inode
Make file operations on a bad inode fail.  This just makes things a
bit more consistent.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:55 -08:00
Miklos Szeredi
6f9f11806a [PATCH] fuse: add code documentation
Document some not-so-trivial functions.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:55 -08:00
Miklos Szeredi
8cbdf1e6f6 [PATCH] fuse: support caching negative dentries
Add support for caching negative dentries.

Up till now, ->d_revalidate() always forced a new lookup on these.  Now let
the lookup method return a zero node ID (not used for anything else) meaning a
negative entry, but with a positive cache timeout.  The old way of signaling
negative entry (replying ENOENT) still works.

Userspace should check the ABI minor version to see whether sending a zero ID
is allowed by the kernel or not.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:55 -08:00
Miklos Szeredi
de5f120255 [PATCH] fuse: add frsize to statfs reply
Add 'frsize' member to the statfs reply.

I'm not sure if sending f_fsid will ever be needed, but just in case leave
some space at the end of the structure, so less compatibility mess would be
required.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:55 -08:00
Miklos Szeredi
45714d6561 [PATCH] fuse: bump interface version
Change interface version to 7.4.

Following changes will need backward compatibility support, so store the minor
version returned by userspace.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:55 -08:00
Miklos Szeredi
4633a22e7a [PATCH] fuse: clean up page offset calculation
Use page_offset() instead of doing page offset calculation by hand.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:55 -08:00
Miklos Szeredi
0aa7c6990e [PATCH] fuse: clean up fuse_lookup()
Simplify fuse_lookup() and related functions.

Signed-off-by: Miklos Szeredi <miklos@szeredi.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:54 -08:00
Martin Schwidefsky
347a8dc3b8 [PATCH] s390: cleanup Kconfig
Sanitize some s390 Kconfig options.  We have ARCH_S390, ARCH_S390X,
ARCH_S390_31, 64BIT, S390_SUPPORT and COMPAT.  Replace these 6 options by
S390, 64BIT and COMPAT.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:53 -08:00
Peter Oberparleiter
56dc6a88ec [PATCH] s390: cms volume label definitions
Moved definition of CMS volume label to vtoc.h and modify partitions/ibm.c to
use this volume label definition instead of anonymous array.

Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:48 -08:00
David Howells
642fb4d1f1 [PATCH] NOMMU: Provide shared-writable mmap support on ramfs
The attached patch makes ramfs support shared-writable mmaps by:

 (1) Attempting to perform a contiguous block allocation to the requested size
     when truncate attempts to increase the file from zero size, such as
     happens when:

	fd = shm_open("/file/on/ramfs", ...):
	ftruncate(fd, size_requested);
	addr = mmap(NULL, subsize, PROT_READ|PROT_WRITE|PROT_EXEC, MAP_SHARED,
		    fd, offset);

 (2) Permitting any shared-writable mapping over any contiguous set of extant
     pages. get_unmapped_area() will return the address into the actual ramfs
     pages. The mapping may start anywhere and be of any size, but may not go
     over the end of file. Multiple mappings may overlap in any way.

 (3) Not permitting a file to be shrunk if it would truncate any shared
     mappings (private mappings are copied).

Thus this patch provides support for POSIX shared memory on NOMMU kernels,
with certain limitations such as there being a large enough block of pages
available to support the allocation and it only working on directly mappable
filesystems.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:32 -08:00
Nick Piggin
9617d95e6e [PATCH] mm: rmap optimisation
Optimise rmap functions by minimising atomic operations when we know there
will be no concurrent modifications.

Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:27 -08:00
David Gibson
1e8f889b10 [PATCH] Hugetlb: Copy on Write support
Implement copy-on-write support for hugetlb mappings so MAP_PRIVATE can be
supported.  This helps us to safely use hugetlb pages in many more
applications.  The patch makes the following changes.  If needed, I also have
it broken out according to the following paragraphs.

1. Add a pair of functions to set/clear write access on huge ptes.  The
   writable check in make_huge_pte is moved out to the caller for use by COW
   later.

2. Hugetlb copy-on-write requires special case handling in the following
   situations:

   - copy_hugetlb_page_range() - Copied pages must be write protected so
     a COW fault will be triggered (if necessary) if those pages are written
     to.

   - find_or_alloc_huge_page() - Only MAP_SHARED pages are added to the
     page cache.  MAP_PRIVATE pages still need to be locked however.

3. Provide hugetlb_cow() and calls from hugetlb_fault() and
   hugetlb_no_page() which handles the COW fault by making the actual copy.

4. Remove the check in hugetlbfs_file_map() so that MAP_PRIVATE mmaps
   will be allowed.  Make MAP_HUGETLB exempt from the depricated VM_RESERVED
   mapping check.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Adam Litke <agl@us.ibm.com>
Cc: William Lee Irwin III <wli@holomorphy.com>
Cc: "Seth, Rohit" <rohit.seth@intel.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:23 -08:00
Joshua Kwan
bd6a59b22f [PATCH] hfsplus oops fix
nls_utf8 is available, and the check in hfsplus_fill_super checks the wrong
pointer for NULLness (it checks the saved nls, not the new one that it
needs to use.)

Signed-off-by: Joshua Kwan <joshk@triplehelix.org>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06 08:33:20 -08:00
Jens Axboe
80cfd548ee [BLOCK] bio: check for same page merge possibilities in __bio_add_page()
For filesystems with a blocksize < page size, we can merge same page
calls into the bio_vec at the end of the bio. This saves segments
on systems with a page size > the "normal" 4kb fs block size.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@suse.de>
2006-01-06 09:43:28 +01:00
Linus Torvalds
29552b1462 Merge http://oss.oracle.com/git/ocfs2 2006-01-05 20:43:11 -08:00
Linus Torvalds
db9edfd7e3 Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6
Trivial manual merge fixup for usb_find_interface clashes.
2006-01-04 18:44:12 -08:00
Linus Torvalds
52347f4e81 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial 2006-01-04 16:34:57 -08:00
Linus Torvalds
f61ea1b0c8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6 2006-01-04 16:30:12 -08:00
Linus Torvalds
d347da0def Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2006-01-04 16:27:41 -08:00
Linus Torvalds
e28cc71572 Relax the rw_verify_area() error checking.
In particular, allow over-large read- or write-requests to be downgraded
to a more reasonable range, rather than considering them outright errors.

We want to protect lower layers from (the sadly all too common) overflow
conditions, but prefer to do so by chopping the requests up, rather than
just refusing them outright.

Cc: Peter Anvin <hpa@zytor.com>
Cc: Ulrich Drepper <drepper@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Cc: Al Viro <viro@ftp.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-04 16:20:40 -08:00
Steven Rostedt
e80a5dea8e [PATCH] sysfs: handle failures in sysfs_make_dirent
I noticed that if sysfs_make_dirent fails to allocate the sd, then a
null will be passed to sysfs_put.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:09 -08:00
Greg Kroah-Hartman
8218ef8093 [PATCH] Driver core: Make block devices create the proper symlink name
Block devices need to add the block device name to the symlink they put
in the device directory, otherwise multiple symlinks of the same name
can be created.  This matches the class system, which works the same
way, we just forgot to convert block at the same time.

Cc: Pete Zaitcev <zaitcev@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:09 -08:00
Kay Sievers
312c004d36 [PATCH] driver core: replace "hotplug" by "uevent"
Leave the overloaded "hotplug" word to susbsystems which are handling
real devices. The driver core does not "plug" anything, it just exports
the state to userspace and generates events.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:08 -08:00
Kay Sievers
033b96fd30 [PATCH] remove mount/umount uevents from superblock handling
The names of these events have been confusing from the beginning
on, as they have been more like claim/release events. We needed these
events for noticing HAL if storage devices have been mounted.

Thanks to Al, we have the proper solution now and can poll()
/proc/mounts instead to get notfied about mount tree changes.

Signed-off-by: Kay Sievers <kay.sievers@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-04 16:18:07 -08:00
Arnaldo Carvalho de Melo
14c850212e [INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h
To help in reducing the number of include dependencies, several files were
touched as they were getting needed headers indirectly for stuff they use.

Thanks also to Alan Menegotto for pointing out that net/dccp/proto.c had
linux/dccp.h include twice.

Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2006-01-03 13:11:21 -08:00
Mark Fasheh
51e7a59870 [PATCH] o Update Kconfig documentation to reflect support for readonly mounts.
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-01-03 11:45:57 -08:00
Adrian Bunk
82353b594c [PATCH] This patch contains the following cleanups:
- cluster/sys.c: make needlessly global code static
- dlm/: "extern" declarations for variables belong into header files
        (and in this case, they are already in dlmdomain.h)

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
2006-01-03 11:45:55 -08:00
Mark Fasheh
b4e40a5188 [PATCH] OCFS2: The Second Oracle Cluster Filesystem
Link the code into the kernel build system. OCFS2 is marked as
experimental.

Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
2006-01-03 11:45:48 -08:00