linux/fs/9p
Johannes Weiner 91b0abe36a mm + fs: store shadow entries in page cache
Reclaim will be leaving shadow entries in the page cache radix tree upon
evicting the real page.  As those pages are found from the LRU, an
iput() can lead to the inode being freed concurrently.  At this point,
reclaim must no longer install shadow pages because the inode freeing
code needs to ensure the page tree is really empty.

Add an address_space flag, AS_EXITING, that the inode freeing code sets
under the tree lock before doing the final truncate.  Reclaim will check
for this flag before installing shadow pages.

Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Reviewed-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Bob Liu <bob.liu@oracle.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: Luigi Semenzato <semenzato@google.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Metin Doslu <metin@citusdata.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Ozgun Erdogan <ozgun@citusdata.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Roman Gushchin <klamm@yandex-team.ru>
Cc: Ryan Mallon <rmallon@gmail.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-04-03 16:21:01 -07:00
..
acl.c fs: make posix_acl_create more useful 2014-01-25 23:58:18 -05:00
acl.h 9p: switch v9fs_set_create_acl() to inode+fid, do it before d_instantiate() 2013-02-26 02:46:07 -05:00
cache.c 9p: remove unused 'p9_fid' struct pointer 2013-11-23 16:10:31 -06:00
cache.h 9p: make v9fs_cache_inode_{get,put,set}_cookie empty inlines for !9P_CACHEFS 2013-10-24 23:34:47 -04:00
fid.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-03-03 13:23:03 -08:00
fid.h 9p: v9fs_fid_add() can't fail now 2013-02-28 01:18:14 -05:00
Kconfig fs/9p: xattr: add trusted and security namespaces 2013-07-07 22:02:18 -05:00
Makefile fs/9p: xattr: add trusted and security namespaces 2013-07-07 22:02:18 -05:00
v9fs_vfs.h 9P: introduction of a new cache=mmap model. 2014-01-10 09:20:51 -06:00
v9fs.c 9P: introduction of a new cache=mmap model. 2014-01-10 09:20:51 -06:00
v9fs.h 9P: introduction of a new cache=mmap model. 2014-01-10 09:20:51 -06:00
vfs_addr.c 9P: introduction of a new cache=mmap model. 2014-01-10 09:20:51 -06:00
vfs_dentry.c consolidate simple ->d_delete() instances 2013-11-15 22:04:17 -05:00
vfs_dir.c [readdir] convert 9p 2013-06-29 12:56:45 +04:00
vfs_file.c 9P: introduction of a new cache=mmap model. 2014-01-10 09:20:51 -06:00
vfs_inode_dotl.c 9P: introduction of a new cache=mmap model. 2014-01-10 09:20:51 -06:00
vfs_inode.c mm + fs: store shadow entries in page cache 2014-04-03 16:21:01 -07:00
vfs_super.c 9P: introduction of a new cache=mmap model. 2014-01-10 09:20:51 -06:00
xattr_security.c fs/9p: xattr: add trusted and security namespaces 2013-07-07 22:02:18 -05:00
xattr_trusted.c fs/9p: xattr: add trusted and security namespaces 2013-07-07 22:02:18 -05:00
xattr_user.c fs/9p: Add support user. xattr 2010-08-02 14:28:35 -05:00
xattr.c 9p: fix return value in case in v9fs_fid_xattr_set() 2013-11-23 16:10:31 -06:00
xattr.h fs/9p: xattr: add trusted and security namespaces 2013-07-07 22:02:18 -05:00