Jan Kara f00c9e44ad quota: Fix deadlock during path resolution ... As Al Viro pointed out path resolution during Q_QUOTAON calls to quotactl is prone to deadlocks. We hold s_umount semaphore for reading during the path resolution and resolution itself may need to acquire the semaphore for writing when e. g. autofs mountpoint is passed. Solve the problem by performing the resolution before we get hold of the superblock (and thus s_umount semaphore). The whole thing is complicated by the fact that some filesystems (OCFS2) ignore the path argument. So to distinguish between filesystem which want the path and which do not we introduce new .quota_on_meta callback which does not get the path. OCFS2 then uses this callback instead of old .quota_on. CC: Al Viro <viro@ZenIV.linux.org.uk> CC: Christoph Hellwig <hch@lst.de> CC: Ted Ts'o <tytso@mit.edu> CC: Joel Becker <joel.becker@oracle.com> Signed-off-by: Jan Kara <jack@suse.cz>		2011-01-12 19:14:55 +01:00
..
cluster	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2011-01-11 11:28:34 -08:00
dlm	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2011-01-11 11:28:34 -08:00
dlmfs	fs: icache RCU free inodes	2011-01-07 17:50:26 +11:00
acl.c	fs: provide rcu-walk aware permission i_ops	2011-01-07 17:50:29 +11:00
acl.h	fs: provide rcu-walk aware permission i_ops	2011-01-07 17:50:29 +11:00
alloc.c	ocfs2: Remove unused truncate function from alloc.c	2011-01-07 18:03:00 -08:00
alloc.h	ocfs2: Remove unused truncate function from alloc.c	2011-01-07 18:03:00 -08:00
aops.c	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2011-01-11 11:28:34 -08:00
aops.h	Ocfs2: Teach 'coherency=full' O_DIRECT writes to correctly up_read i_alloc_sem.	2010-12-09 15:36:48 -08:00
blockcheck.c	ocfs2: Fix metaecc error messages	2010-09-08 14:25:53 +08:00
blockcheck.h
buffer_head_io.c	Merge branch 'skip_delete_inode' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2-mark into ocfs2-fixes	2010-04-30 13:37:29 -07:00
buffer_head_io.h
dcache.c	fs: dcache per-inode inode alias locking	2011-01-07 17:50:31 +11:00
dcache.h	Track negative entries v3	2010-09-10 09:18:15 -07:00
dir.c	ocfs2: Hold ip_lock when set/clear flags for indexed dir.	2010-12-16 00:36:15 -08:00
dir.h
dlmglue.c	Track negative entries v3	2010-09-10 09:18:15 -07:00
dlmglue.h	ocfs2: Fix lockdep warning in reflink.	2010-09-10 09:19:06 -07:00
export.c	fs: dcache reduce branches in lookup path	2011-01-07 17:50:28 +11:00
export.h
extent_map.c
extent_map.h
file.c	fs: provide rcu-walk aware permission i_ops	2011-01-07 17:50:29 +11:00
file.h	fs: provide rcu-walk aware permission i_ops	2011-01-07 17:50:29 +11:00
heartbeat.c
heartbeat.h
inode.c	Track negative entries v3	2010-09-10 09:18:15 -07:00
inode.h	Track negative entries v3	2010-09-10 09:18:15 -07:00
ioctl.c	Ocfs2: Add new OCFS2_IOC_INFO ioctl for ocfs2 v8.	2010-09-10 08:35:41 -07:00
ioctl.h
journal.c	ocfs2: Remove obsolete comments before ocfs2_start_trans.	2010-09-10 08:40:18 -07:00
journal.h	Reorganize data elements to reduce struct sizes	2010-09-10 08:39:27 -07:00
Kconfig	ocfs2: Add DEBUG_FS dependency	2010-12-22 18:34:48 -08:00
localalloc.c	ocfs2: Limit default local alloc size within bitmap range.	2010-06-15 16:50:43 -07:00
localalloc.h	ocfs2: increase the default size of local alloc windows	2010-05-05 18:18:07 -07:00
locks.c
locks.h
Makefile	ocfs2: allocation reservations	2010-05-05 18:17:30 -07:00
mmap.c	Merge branch 'cow_readahead' of git://oss.oracle.com/git/tma/linux-2.6 into merge-2	2010-09-10 08:41:04 -07:00
mmap.h
namei.c	Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2	2011-01-11 11:28:34 -08:00
namei.h
ocfs1_fs_compat.h
ocfs2_fs.h	ocfs2: Fix system inodes cache overflow.	2010-12-22 02:35:36 -08:00
ocfs2_ioctl.h	Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window	2010-10-15 13:03:09 -07:00
ocfs2_lockid.h
ocfs2_lockingver.h
ocfs2.h	ocfs2: Try to free truncate log when meeting ENOSPC in write.	2010-12-16 00:46:02 -08:00
quota_global.c	ocfs2: Zero the tail cluster when extending past i_size.	2010-07-08 13:25:35 -07:00
quota_local.c	ocfs2: Zero the tail cluster when extending past i_size.	2010-07-08 13:25:35 -07:00
quota.h	ocfs2: Fix NULL pointer deref when writing local dquot	2010-05-21 19:30:48 +02:00
refcounttree.c	Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window	2010-10-15 13:03:09 -07:00
refcounttree.h	Merge branch 'cow_readahead' of git://oss.oracle.com/git/tma/linux-2.6 into merge-2	2010-09-10 08:41:04 -07:00
reservations.c	ocfs2: Move 'wanted' into parens of ocfs2_resmap_resv_bits.	2010-09-23 14:16:47 -07:00
reservations.h	ocfs2: make ocfs2_adjust_resv_from_alloc simple.	2010-05-05 18:18:09 -07:00
resize.c	ocfs2: Make ocfs2_journal_dirty() void.	2010-05-05 18:17:29 -07:00
resize.h
slot_map.c	When I tried to compile I got the following warning:	2010-10-11 13:45:52 -07:00
slot_map.h
stack_o2cb.c	ocfs2: Print message if user mounts without starting global heartbeat	2010-10-06 17:55:29 -07:00
stack_user.c	ocfs2_connection_find() returns pointer to bad structure	2010-11-18 15:41:41 -08:00
stackglue.c
stackglue.h
suballoc.c	Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window	2010-10-15 13:03:09 -07:00
suballoc.h	ocfs2: allow return of new inode block location before allocation of the inode	2010-09-08 14:25:59 +08:00
super.c	quota: Fix deadlock during path resolution	2011-01-12 19:14:55 +01:00
super.h	ocfs2: Wrap signal blocking in void functions.	2010-05-10 11:50:10 -07:00
symlink.c	ocfs2: Don't walk off the end of fast symlinks.	2010-09-29 17:33:05 -07:00
symlink.h
sysfile.c	ocfs2: Cache system inodes of other slots.	2010-09-10 08:56:24 -07:00
sysfile.h
uptodate.c
uptodate.h
ver.c
ver.h
xattr.c	ocfs2: Avoid to evaluate xattr block flags again.	2010-10-15 13:03:43 -07:00
xattr.h	ocfs: constify xattr_handler	2010-05-21 18:31:20 -04:00