Commit Graph

117851 Commits

Author SHA1 Message Date
OGAWA Hirofumi
4e9ed2f85a [PATCH vfs-2.6 6/6] vfs: add LOOKUP_RENAME_TARGET intent
This adds LOOKUP_RENAME_TARGET intent for lookup of rename destination.

LOOKUP_RENAME_TARGET is going to be used like LOOKUP_CREATE. But since
the destination of rename() can be existing directory entry, so it has a
difference. Although that difference doesn't matter in my usage, this
tells it to user of this intent.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23 05:13:20 -04:00
OGAWA Hirofumi
0612d9fb27 [PATCH vfs-2.6 5/6] vfs: remove LOOKUP_PARENT from non LOOKUP_PARENT lookup
lookup_hash() with LOOKUP_PARENT is bogus. And this prepares to add
new intent on those path.

The user of LOOKUP_PARENT intent is nfs only, and it checks whether
nd->flags has LOOKUP_CREATE or LOOKUP_OPEN, so the result is same.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23 05:13:19 -04:00
OGAWA Hirofumi
8f3dfaa5ba [PATCH vfs-2.6 4/6] vfs: remove unnecessary fsnotify_d_instantiate()
This calls d_move(), so fsnotify_d_instantiate() is unnecessary like
rename path.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23 05:13:18 -04:00
OGAWA Hirofumi
360da90029 [PATCH vfs-2.6 3/6] vfs: add __d_instantiate() helper
This adds __d_instantiate() for users which is already taking
dcache_lock, and replace with it.

The part of d_add_ci() isn't equivalent. But it should be needed
fsnotify_d_instantiate() actually, because the path is to add the
inode to negative dentry.  fsnotify_d_instantiate() should be called
after change from negative to positive.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23 05:13:17 -04:00
OGAWA Hirofumi
e2761a1167 [PATCH vfs-2.6 2/6] vfs: add d_ancestor()
This adds d_ancestor() instead of d_isparent(), then use it.

If new_dentry == old_dentry, is_subdir() returns 1, looks strange.
"new_dentry == old_dentry" is not subdir obviously. But I'm not
checking callers for now, so this keeps current behavior.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23 05:13:16 -04:00
OGAWA Hirofumi
871c0067d5 [PATCH vfs-2.6 1/6] vfs: replace parent == dentry->d_parent by IS_ROOT()
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23 05:13:16 -04:00
Al Viro
9fbb76ce0f [PATCH] get rid of on-stack dentry in udf
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:15 -04:00
Alexey Dobriyan
ad76cbc63b [PATCH 2/2] anondev: switch to IDA
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23 05:13:14 -04:00
Alexey Dobriyan
6de24f0ed0 [PATCH 1/2] anondev: init IDR statically
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23 05:13:13 -04:00
David Woodhouse
8966c5e0fc [JFFS2] Use d_splice_alias() not d_add() in jffs2_lookup()
Now that JFFS2 can be exported by NFS, we need to get this right.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:12 -04:00
David Woodhouse
c002a6c797 [PATCH] Optimise NFS readdir hack slightly.
Avoid calling the underlying ->readdir() again when we reached the end
already; keep going round the loop only if we stopped due to our own
buffer being full.

[AV: tidy the things up a bit, while we are there]

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:11 -04:00
Al Viro
53c9c5c0e3 [PATCH] prepare vfs_readdir() callers to returning filldir result
It's not the final state, but it allows moving ->readdir() instances
to passing filldir return value to caller of vfs_readdir().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:10 -04:00
Al Viro
a9885444f7 [PATCH] get rid of on-stack dentry in ext2_get_parent()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:09 -04:00
Al Viro
734711abac [PATCH] get rid of on-stack fake dentry in ext3_get_parent()
Better pass parent and qstr to ext3_find_entry() explicitly than
use such kludges, especially since the stack footprint is nasty
enough and we have every chance to be deep in call chain.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:08 -04:00
David Woodhouse
5f556aab90 [JFFS2] Reinstate NFS exportability
Now that the readdir/lookup deadlock issues have been dealt with, we can
export JFFS2 file systems again.

(For now, you have to specify fsid manually; we should add a method to
the export_ops to handle that too.)

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:07 -04:00
David Woodhouse
d88f1833fc [PATCH] Remove XFS buffered readdir hack
Now that we've moved the readdir hack to the nfsd code, we can
remove the local version from the XFS code.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:06 -04:00
David Woodhouse
14f7dd6320 [PATCH] Copy XFS readdir hack into nfsd code.
Some file systems with their own internal locking have problems with the
way that nfsd calls the ->lookup() method from within a filldir function
called from their ->readdir() method. The recursion back into the file
system code can cause deadlock.

XFS has a fairly hackish solution to this which involves doing the
readdir() into a locally-allocated buffer, then going back through it
calling the filldir function afterwards. It's not ideal, but it works.

It's particularly suboptimal because XFS does this for local file
systems too, where it's completely unnecessary.

Copy this hack into the NFS code where it can be used only for NFS
export. In response to feedback, use it unconditionally rather than only
for the affected file systems.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:05 -04:00
David Woodhouse
2628b76636 [PATCH] Factor out nfsd_do_readdir() into its own function
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:04 -04:00
Al Viro
f3f8e17571 [PATCH] reduce the stack footprint of exportfs_decode_fh()
no need to have _two_ 256-byte arrays on stack...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:03 -04:00
Christoph Hellwig
9308a6128d [PATCH] kill d_alloc_anon
Remove d_alloc_anon now that no users are left.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:02 -04:00
Christoph Hellwig
440037287c [PATCH] switch all filesystems over to d_obtain_alias
Switch all users of d_alloc_anon to d_obtain_alias.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:01 -04:00
Christoph Hellwig
4ea3ada295 [PATCH] new helper: d_obtain_alias
The calling conventions of d_alloc_anon are rather unfortunate for all
users, and it's name is not very descriptive either.

Add d_obtain_alias as a new exported helper that drops the inode
reference in the failure case, too and allows to pass-through NULL
pointers and inodes to allow for tail-calls in the export operations.

Incidentally this helper already existed as a private function in
libfs.c as exportfs_d_alloc so kill that one and switch the callers
to d_obtain_alias.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:13:00 -04:00
Christoph Hellwig
3a8cff4f02 [PATCH] generic_file_llseek tidyups
Add kerneldoc for generic_file_llseek and generic_file_llseek_unlocked,
use sane variable names and unclutter the code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:59 -04:00
Christoph Hellwig
a518ab9329 [PATCH] tidy up chrdev_open
Use a single goto label for chrdev_put + return error cases.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:59 -04:00
Christoph Hellwig
ca30bc9952 [PATCH] hpfs: cleanup ->setattr
Reformat hpfs_notify_change to standard kernel style to make it readable
and rename it to hpfs_setattr as that's what the method is called.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:58 -04:00
Christoph Hellwig
72e8264eda [PATCH] dm: kill lookup_device wrapper
Now that lookup_bdev is exported and used by dm just use it directly
instead of through a trivial wrapper.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:57 -04:00
Al Viro
3516586a42 [PATCH] make O_EXCL in nd->intent.flags visible in nd->flags
New flag: LOOKUP_EXCL.  Set before doing the final step of pathname
resolution on the paths that have LOOKUP_CREATE and O_EXCL.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:56 -04:00
Al Viro
2c552d8136 [PATCH] don't pass bogus flags to LOOKUP_PARENT lookup in spufs
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:55 -04:00
Al Viro
8737f3a1b3 [PATCH] get rid of path_lookup_create()
... and don't pass bogus flags when we are just looking for parent.
Fold __path_lookup_intent_open() into path_lookup_open() while we
are at it; that's the only remaining caller.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:54 -04:00
Al Viro
98bc993f99 [PATCH] get rid of nameidata in audit_tree
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:53 -04:00
Al Viro
421748ecde [PATCH] assorted path_lookup() -> kern_path() conversions
more nameidata eviction

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:52 -04:00
Al Viro
a63bb99660 [PATCH] switch nfsd to kern_path()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:51 -04:00
Al Viro
c1a2a4756d [PATCH] sanitize svc_export_parse()
clean up the exit paths, get rid of nameidata

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:50 -04:00
Al Viro
8264613def [PATCH] switch quota_on-related stuff to kern_path()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 05:12:44 -04:00
Herbert Xu
b63365a2d6 net: Fix disjunct computation of netdev features
My change

    commit e2a6b85247
    net: Enable TSO if supported by at least one device

didn't do what was intended because the netdev_compute_features
function was designed for conjunctions.  So what happened was that
it would simply take the TSO status of the last constituent device.

This patch extends it to support both conjunctions and disjunctions
under the new name of netdev_increment_features.

It also adds a new function netdev_fix_features which does the
sanity checking that usually occurs upon registration.  This ensures
that the computation doesn't result in an illegal combination
since this checking is absent when the change is initiated via
ethtool.

The two users of netdev_compute_features have been converted.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-23 01:11:29 -07:00
Wei Yongjun
2e3f92dad6 sctp: Fix to handle SHUTDOWN in SHUTDOWN_RECEIVED state
Once an endpoint has reached the SHUTDOWN-RECEIVED state,
it MUST NOT send a SHUTDOWN in response to a ULP request.
The Cumulative TSN Ack of the received SHUTDOWN chunk
MUST be processed.

This patch fix to process Cumulative TSN Ack of the received
SHUTDOWN chunk in SHUTDOWN_RECEIVED state.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-23 01:01:18 -07:00
Wei Yongjun
cf896d514a sctp: Fix to handle SHUTDOWN in SHUTDOWN-PENDING state
If SHUTDOWN is received in SHUTDOWN-PENDING state, enpoint should enter
the SHUTDOWN-RECEIVED state and check the Cumulative TSN Ack field of
the SHUTDOWN chunk (RFC 4960 Section 9.2). If the SHUTDOWN chunk can
acknowledge all of the send DATA chunks, SHUTDOWN-ACK should be sent.

But now endpoint just silently discarded the SHUTDOWN chunk.

SHUTDOWN received in SHUTDOWN-PENDING state can happend when the last
SACK is lost by network, or the SHUTDOWN chunk can acknowledge all of
the received DATA chunks. The packet sequence(SACK lost) is like this:

Endpoint A                       Endpoint B       ULP
(ESTABLISHED)                    (ESTABLISHED)

               <-----------      DATA
                                             <--- shutdown
                                 Enter SHUTDOWN-PENDING state
  SACK         ----lost---->

  SHUTDOWN(*1) ------------>

               <-----------      SHUTDOWN-ACK

 (*1) silently discarded now.

This patch fix to handle SHUTDOWN in SHUTDOWN-PENDING state as the same
as ESTABLISHED state.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-23 01:00:49 -07:00
Shaohua Li
898b054f3e dock: make dock driver not a module
To avoid dock driver is loaded after other drivers like libata, let's
make dock driver not a module.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2008-10-23 04:00:47 -04:00
Wei Yongjun
df10eec476 sctp: Add check for the TSN field of the SHUTDOWN chunk
If SHUTDOWN chunk is received Cumulative TSN Ack beyond the max tsn currently
send, SHUTDOWN chunk be accepted and the association will be broken. New data
is send, but after received SACK it will be drop because TSN in SACK is less
than the Cumulative TSN, data will be retrans again and again even if correct
SACK is received.

The packet sequence is like this:

Endpoint A                       Endpoint B       ULP
(ESTABLISHED)                    (ESTABLISHED)

               <-----------      DATA (TSN=x-1)

               <-----------      DATA (TSN=x)

  SHUTDOWN     ----------->      (Now Cumulative TSN=x+1000)
  (TSN=x+1000)
               <-----------      DATA (TSN=x+1)

  SACK         ----------->      drop the SACK
  (TSN=x+1)
               <-----------      DATA (TSN=x+1)(retrans)

This patch fix this problem by terminating the association and respond to
the sender with an ABORT.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-23 01:00:21 -07:00
Wei Yongjun
91bd6b1e03 sctp: Drop ICMP packet too big message with MTU larger than current PMTU
If ICMP packet too big message is received with MTU larger than current
PMTU, SCTP will still accept this ICMP message and sync the PMTU of assoc
with the wrong MTU.

Endpoing A                 Endpoint B
(ESTABLISHED)              (ESTABLISHED)
ICMP         --------->
(packet too big, MTU too larger)
                           sync PMTU

This patch fixed the problem by drop that ICMP message.

Signed-off-by: Wei Yongjun <yjwei@cn.fujitsu.com>
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-10-23 00:59:52 -07:00
David S. Miller
dcc51417e5 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 2008-10-23 00:44:04 -07:00
Al Viro
0a0d8a4675 [PATCH] no need for noinline stuff in fs/namespace.c anymore
Stack footprint from hell had been due to many struct nameidata in there.
No more.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 03:34:22 -04:00
Al Viro
2d92ab3c62 [PATCH] finally get rid of nameidata in namespace.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 03:34:20 -04:00
Al Viro
d181146572 [PATCH] new helper - kern_path()
Analog of lookup_path(), takes struct path *.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23 03:34:19 -04:00
H. Peter Anvin
5e1b00758b x86: canonicalize remaining header guards
Canonicalize a few remaining header guards, with the exception for
those which are still in subarchitecture directories.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-23 00:20:33 -07:00
H. Peter Anvin
05e4d3169b x86: drop double underscores from header guards
Drop double underscores from header guards in arch/x86/include.  They
are used inconsistently, and are not necessary.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-23 00:01:39 -07:00
H. Peter Anvin
1965aae3c9 x86: Fix ASM_X86__ header guards
Change header guards named "ASM_X86__*" to "_ASM_X86_*" since:

a. the double underscore is ugly and pointless.
b. no leading underscore violates namespace constraints.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:23 -07:00
Al Viro
87e299e5c7 x86, um: get rid of uml-config.h
Take a few symbols we need into kern_constants.h

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:23 -07:00
Al Viro
61bee20445 x86, um: get rid of arch/um/Kconfig.arch
Teach scripts/kconfig/Makefile and top-level Makefile that arch/*/Makefile
is allowed to say Kconfig := <whatever I want instead of arch/blah/Kconfig>.
Rewrite arch/um/Kconfig and arch/um/Kconfig.<subarch> so that the latter
would be top-level one (and include the pieces of the former).

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:23 -07:00
Al Viro
ec82c32d45 x86, um: get rid of arch/um/os symlink
we can get DEV_NULL defined for arch/um/drivers/null.c in less
convoluted ways, TYVM...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2008-10-22 22:55:22 -07:00