linux/fs/gfs2
Steven Whitehouse 380f7c65a7 GFS2: Resolve inode eviction and ail list interaction bug
This patch contains a few misc fixes which resolve a recently
reported issue. This patch has been a real team effort and has
received a lot of testing.

The first issue is that the ail lock needs to be held over a few
more operations. The lock thats added into gfs2_releasepage() may
possibly be a candidate for replacing with RCU at some future
point, but at this stage we've gone for the obvious fix.

The second issue is that gfs2_write_inode() can end up calling
a glock recursively when called from gfs2_evict_inode() via the
syncing code, so it needs a guard added.

The third issue is that we either need to not truncate the metadata
pages of inodes which have zero link count, but which we cannot
deallocate due to them still being in use by other nodes, or we need
to ensure that those pages have all made it through the journal and
ail lists first. This patch takes the former approach, but the
latter has also been tested and there is nothing to choose between
them performance-wise. So again, we could revise that decision
in the future.

Also, the inode eviction process is now better documented.

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
Tested-by: Bob Peterson <rpeterso@redhat.com>
Tested-by: Abhijith Das <adas@redhat.com>
Reported-by: Barry J. Marson <bmarson@redhat.com>
Reported-by: David Teigland <teigland@redhat.com>
2011-07-14 08:59:44 +01:00
..
acl.c GFS2: Post-VFS scale update for RCU path walk 2011-01-21 09:39:24 +00:00
acl.h fs: provide rcu-walk aware permission i_ops 2011-01-07 17:50:29 +11:00
aops.c GFS2: Resolve inode eviction and ail list interaction bug 2011-07-14 08:59:44 +01:00
bmap.c GFS2: Wipe directory hash table metadata when deallocating a directory 2011-05-21 14:05:58 +01:00
bmap.h
dentry.c gfs2: fix d_revalidate oopsen on NFS exports 2011-03-10 03:44:48 -05:00
dir.c GFS2: When adding a new dir entry, inc link count if it is a subdir 2011-05-09 16:43:53 +01:00
dir.h GFS2: When adding a new dir entry, inc link count if it is a subdir 2011-05-09 16:43:53 +01:00
export.c GFS2: Make writeback more responsive to system conditions 2011-04-20 09:01:37 +01:00
file.c GFS2: make sure fallocate bytes is a multiple of blksize 2011-05-03 11:47:42 +01:00
gfs2.h
glock.c Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes 2011-06-07 18:44:10 -07:00
glock.h GFS2: Alter point of entry to glock lru list for glocks with an address_space 2011-04-20 08:59:48 +01:00
glops.c GFS2: Resolve inode eviction and ail list interaction bug 2011-07-14 08:59:44 +01:00
glops.h GFS2: Clean up fsync() 2011-04-20 09:00:41 +01:00
incore.h GFS2: Fix race during filesystem mount 2011-07-12 09:15:46 +01:00
inode.c GFS2: Move all locking inside the inode creation function 2011-05-13 12:11:17 +01:00
inode.h GFS2: Clean up symlink creation 2011-05-13 10:34:59 +01:00
Kconfig
lock_dlm.c GFS2: Fix glock deallocation race 2011-03-09 10:58:04 +00:00
log.c GFS2: Resolve inode eviction and ail list interaction bug 2011-07-14 08:59:44 +01:00
log.h GFS2: Make writeback more responsive to system conditions 2011-04-20 09:01:37 +01:00
lops.c GFS2: Optimise glock lru and end of life inodes 2011-04-20 09:01:17 +01:00
lops.h
main.c Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild-2.6 2011-05-26 13:19:00 -07:00
Makefile GFS2: Rename ops_inode.c to inode.c 2011-05-10 13:12:49 +01:00
meta_io.c GFS2: Improve tracing support (adds two flags) 2011-04-20 09:00:59 +01:00
meta_io.h GFS2: Remove unused macro 2011-04-20 09:00:24 +01:00
ops_fstype.c GFS2: Fix race during filesystem mount 2011-07-12 09:15:46 +01:00
quota.c vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
quota.h vmscan: change shrinker API by passing shrink_control struct 2011-05-25 08:39:26 -07:00
recovery.c
recovery.h
rgrp.c GFS2: Wipe directory hash table metadata when deallocating a directory 2011-05-21 14:05:58 +01:00
rgrp.h GFS2: deallocation performance patch 2011-02-24 12:13:48 +00:00
super.c GFS2: Resolve inode eviction and ail list interaction bug 2011-07-14 08:59:44 +01:00
super.h
sys.c GFS2: Fix race during filesystem mount 2011-07-12 09:15:46 +01:00
sys.h
trace_gfs2.h GFS2: Add an AIL writeback tracepoint 2011-04-20 09:01:58 +01:00
trans.c
trans.h
util.c
util.h
xattr.c GFS2: Clean up duplicated setattr code 2010-11-30 10:30:19 +00:00
xattr.h