piaojun 16c8d569f5 ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute ... The race between *set_acl and *get_acl will cause getting incomplete xattr data as below: processA processB ocfs2_set_acl ocfs2_xattr_set __ocfs2_xattr_set_handle ocfs2_get_acl_nolock ocfs2_xattr_get_nolock: processB may get incomplete xattr data if processA hasn't set_acl done. So we should use 'ip_xattr_sem' to protect getting extended attribute in ocfs2_get_acl_nolock(), as other processes could be changing it concurrently. Link: http://lkml.kernel.org/r/5A5DDCFF.7030001@huawei.com Signed-off-by: Jun Piao <piaojun@huawei.com> Reviewed-by: Alex Chen <alex.chen@huawei.com> Cc: Mark Fasheh <mfasheh@versity.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <jiangqi903@gmail.com> Cc: Changwei Ge <ge.changwei@h3c.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2018-01-31 17:18:35 -08:00
..
cluster	ocfs2/cluster: close a race that fence can't be triggered	2018-01-31 17:18:35 -08:00
dlm	fs/ocfs2/dlm/dlmmaster.c: clean up dead code	2018-01-31 17:18:34 -08:00
dlmfs	fs: annotate ->poll() instances	2017-11-27 16:20:05 -05:00
Kconfig	…
Makefile	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
acl.c	ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute	2018-01-31 17:18:35 -08:00
acl.h	ocfs2: make ocfs2_set_acl() static	2017-09-06 17:27:24 -07:00
alloc.c	ocfs2: clean up dead code in alloc.c	2018-01-31 17:18:35 -08:00
alloc.h	ocfs2: clean up some dead code	2017-09-06 17:27:24 -07:00
aops.c	ocfs2: ip_alloc_sem should be taken in ocfs2_get_block()	2017-11-15 18:21:01 -08:00
aops.h	ocfs2: clean up unused 'page' parameter in ocfs2_write_end_nolock()	2016-12-12 18:55:06 -08:00
blockcheck.c	…
blockcheck.h	…
buffer_head_io.c	block,fs: untangle fs.h and blk_types.h	2016-11-01 09:43:26 -06:00
buffer_head_io.h	ocfs2: clean up some unused function declarations	2017-11-15 18:21:01 -08:00
dcache.c	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
dcache.h	ocfs2: revert iput deferring code in ocfs2_drop_dentry_lock	2014-04-03 16:20:55 -07:00
dir.c	ocfs2: convert to new i_version API	2018-01-29 06:42:21 -05:00
dir.h	VFS: normal filesystems (and lustre): d_inode() annotations	2015-04-15 15:06:57 -04:00
dlmglue.c	ocfs2: try a blocking lock before return AOP_TRUNCATED_PAGE	2018-01-31 17:18:35 -08:00
dlmglue.h	ocfs2/dlmglue: prepare tracking logic to avoid recursive cluster lock	2017-02-22 16:41:27 -08:00
export.c	ocfs2: Use ERR_CAST() to avoid cross-structure cast	2017-05-28 10:11:49 -07:00
export.h	…
extent_map.c	ocfs2: neaten do_error, ocfs2_error and ocfs2_abort	2015-09-04 16:54:41 -07:00
extent_map.h	…
file.c	Rename superblock flags (MS_xyz -> SB_xyz)	2017-11-27 13:05:09 -08:00
file.h	statx: Add a system call to make enhanced file info available	2017-03-02 20:51:15 -05:00
filecheck.c	Pass mode to wait_on_atomic_t() action funcs and provide default actions	2017-11-13 15:38:16 +00:00
filecheck.h	ocfs2: sysfile interfaces for online file check	2016-03-22 15:36:02 -07:00
heartbeat.c	…
heartbeat.h	…
inode.c	ocfs2: convert to new i_version API	2018-01-29 06:42:21 -05:00
inode.h	ocfs2: convert inode refcount test to a helper	2016-12-10 12:39:45 -08:00
ioctl.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
ioctl.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
journal.c	ocfs2: clean up some dead code	2017-09-06 17:27:24 -07:00
journal.h	jbd2: add support for avoiding data writes during transaction commits	2016-04-24 00:56:07 -04:00
localalloc.c	ocfs2: fix occurring deadlock by changing ocfs2_wq from global to local	2016-03-25 16:37:42 -07:00
localalloc.h	ocfs2: free allocated clusters if error occurs after ocfs2_claim_clusters	2014-02-06 13:48:51 -08:00
locks.c	ocfs2: fix flock panic issue	2015-12-29 17:45:49 -08:00
locks.h	…
mmap.c	mm, fs: reduce fault, page_mkwrite, and pfn_mkwrite to take only vmf	2017-02-24 17:46:54 -08:00
mmap.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
move_extents.c	ocfs2: clean up some dead code	2017-09-06 17:27:24 -07:00
move_extents.h	…
namei.c	ocfs2: convert to new i_version API	2018-01-29 06:42:21 -05:00
namei.h	ocfs2: do not include dio entry in case of orphan scan	2015-11-05 19:34:48 -08:00
ocfs1_fs_compat.h	…
ocfs2.h	ocfs2: clean up some dead code	2017-09-06 17:27:24 -07:00
ocfs2_fs.h	ocfs2: use magic.h	2017-07-06 16:24:30 -07:00
ocfs2_ioctl.h	…
ocfs2_lockid.h	…
ocfs2_lockingver.h	…
ocfs2_trace.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
quota.h	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
quota_global.c	ocfs2: convert to new i_version API	2018-01-29 06:42:21 -05:00
quota_local.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
refcounttree.c	ocfs2: clean up some dead code	2017-09-06 17:27:24 -07:00
refcounttree.h	ocfs2: implement the VFS clone_range, copy_range, and dedupe_range features	2016-12-10 12:39:45 -08:00
reservations.c	ocfs2: make resv_lock spinlock static	2015-02-10 14:30:29 -08:00
reservations.h	…
resize.c	ocfs2: solve a problem of crossing the boundary in updating backups	2016-03-25 16:37:42 -07:00
resize.h	…
slot_map.c	ocfs2: clean up an unneeded goto in ocfs2_put_slot()	2016-05-19 19:12:14 -07:00
slot_map.h	…
stack_o2cb.c	ocfs2: avoid a pointless delay in o2cb_cluster_check()	2015-04-14 16:48:57 -07:00
stack_user.c	Replace <asm/uaccess.h> with <linux/uaccess.h> globally	2016-12-24 11:46:01 -08:00
stackglue.c	ocfs2: constify attribute_group structures	2017-07-06 16:24:30 -07:00
stackglue.h	ocfs2: fix crash caused by stale lvb with fsdlm plugin	2017-01-10 18:31:54 -08:00
suballoc.c	ocfs2: clean dead code in suballoc.c	2018-01-31 17:18:35 -08:00
suballoc.h	ocfs2: rollback alloc_dinode counts when ocfs2_block_group_set_bits() failed	2014-04-03 16:20:56 -07:00
super.c	ocfs2: return -EROFS to mount.ocfs2 if inode block is invalid	2018-01-31 17:18:35 -08:00
super.h	ocfs2: remove unused declaration ocfs2_publish_get_mount_state()	2017-11-15 18:21:01 -08:00
symlink.c	vfs: remove ".readlink = generic_readlink" assignments	2016-12-09 16:45:04 +01:00
symlink.h	…
sysfile.c	ocfs2: avoid system inode ref confusion by adding mutex lock	2014-04-03 16:20:57 -07:00
sysfile.h	…
uptodate.c	ocfs2: remove NULL assignments on static	2014-06-04 16:53:53 -07:00
uptodate.h	…
xattr.c	ocfs2/acl: use 'ip_xattr_sem' to protect getting extended attribute	2018-01-31 17:18:35 -08:00
xattr.h	ocfs2: fix posix_acl_create deadlock	2016-05-12 15:52:50 -07:00