Darrick J. Wong e6a9467ea1 ocfs2: fix inode bh swapping mixup in ocfs2_reflink_inodes_lock ... ocfs2_reflink_inodes_lock() can swap the inode1/inode2 variables so that we always grab cluster locks in order of increasing inode number. Unfortunately, we forget to swap the inode record buffer head pointers when we've done this, which leads to incorrect bookkeepping when we're trying to make the two inodes have the same refcount tree. This has the effect of causing filesystem shutdowns if you're trying to reflink data from inode 100 into inode 97, where inode 100 already has a refcount tree attached and inode 97 doesn't. The reflink code decides to copy the refcount tree pointer from 100 to 97, but uses inode 97's inode record to open the tree root (which it doesn't have) and blows up. This issue causes filesystem shutdowns and metadata corruption! Link: http://lkml.kernel.org/r/20190312214910.GK20533@magnolia Fixes: 29ac8e856c ("ocfs2: implement the VFS clone_range, copy_range, and dedupe_range features") Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Joseph Qi <jiangqi903@gmail.com> Cc: Mark Fasheh <mfasheh@versity.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joseph Qi <joseph.qi@huawei.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2019-03-29 10:01:37 -07:00
..
cluster	ocfs2: fix a panic problem caused by o2cb_ctl	2019-03-05 21:07:13 -08:00
dlm	ocfs2: improve ocfs2 Makefile	2018-12-28 12:11:45 -08:00
dlmfs	Remove 'type' argument from access_ok() function	2019-01-03 18:57:57 -08:00
Kconfig	…
Makefile	ocfs2: improve ocfs2 Makefile	2018-12-28 12:11:45 -08:00
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: fix the application IO timeout when fstrim is running	2019-03-05 21:07:13 -08:00
alloc.h	ocfs2: try to reuse extent block in dealloc without meta_alloc	2018-01-31 17:18:35 -08:00
aops.c	fs: don't open code lru_to_page()	2019-01-04 13:13:48 -08:00
aops.h	ocfs2: keep the trace point consistent with the function name	2018-04-05 21:36:21 -07:00
blockcheck.c	…
blockcheck.h	…
buffer_head_io.c	ocfs2: don't clear bh uptodate for block read	2018-12-28 12:11:46 -08:00
buffer_head_io.h	ocfs2: clean up some unused function declarations	2017-11-15 18:21:01 -08:00
dcache.c	…
dcache.h	…
dir.c	ocfs2: fix a misuse a of brelse after failing ocfs2_check_dir_entry	2018-11-03 10:09:37 -07:00
dir.h	…
dlmglue.c	ocfs2: fix the application IO timeout when fstrim is running	2019-03-05 21:07:13 -08:00
dlmglue.h	ocfs2: ocfs2_inode_lock_tracker does not distinguish lock level	2018-06-07 17:34:33 -07:00
export.c	ocfs2: fix potential use after free	2018-11-30 14:56:15 -08:00
export.h	…
extent_map.c	ocfs2: add ocfs2_overwrite_io()	2018-01-31 17:18:35 -08:00
extent_map.h	ocfs2: add ocfs2_overwrite_io()	2018-01-31 17:18:35 -08:00
file.c	ocfs2: don't use iocb when EIOCBQUEUED returns	2018-11-03 10:09:37 -07:00
file.h	ocfs2: clean up redundant function declarations	2018-06-07 17:34:33 -07:00
filecheck.c	ocfs2: add duplicated ino number check	2018-04-05 21:36:22 -07:00
filecheck.h	ocfs2: add kobject for online file check	2018-04-05 21:36:22 -07:00
heartbeat.c	…
heartbeat.h	…
inode.c	ocfs2: clean up some unnecessary code	2018-08-17 16:20:27 -07:00
inode.h	ocfs2: convert inode refcount test to a helper	2016-12-10 12:39:45 -08:00
ioctl.c	ocfs2: eliminate a misreported warning	2018-06-07 17:34:33 -07:00
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: clear journal dirty flag after shutdown journal	2018-12-28 12:11:45 -08:00
journal.h	jbd2: add support for avoiding data writes during transaction commits	2016-04-24 00:56:07 -04:00
localalloc.c	ocfs2: fix panic due to unrecovered local alloc	2018-12-28 12:11:45 -08:00
localalloc.h	…
locks.c	ocfs2: properly initial file_lock used for unlock.	2018-11-30 11:26:12 -05:00
locks.h	…
mmap.c	fs: ocfs2: use new return type vm_fault_t	2018-06-07 17:34:34 -07:00
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: fix deadlock caused by ocfs2_defrag_extent()	2018-11-30 14:56:13 -08:00
move_extents.h	…
namei.c	ocfs2: drop a VLA in ocfs2_orphan_del()	2018-06-07 17:34:34 -07:00
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: fix the application IO timeout when fstrim is running	2019-03-05 21:07:13 -08:00
ocfs2_fs.h	ocfs2: correct the comments position of struct ocfs2_dir_block_trailer	2018-06-07 17:34:34 -07:00
ocfs2_ioctl.h	…
ocfs2_lockid.h	ocfs2: add trimfs dlm lock resource	2018-01-31 17:18:35 -08:00
ocfs2_lockingver.h	…
ocfs2_trace.h	ocfs2: fix the application IO timeout when fstrim is running	2019-03-05 21:07:13 -08:00
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	ocfs2: return -EROFS when filesystem becomes read-only	2018-08-17 16:20:27 -07:00
refcounttree.c	ocfs2: fix inode bh swapping mixup in ocfs2_reflink_inodes_lock	2019-03-29 10:01:37 -07:00
refcounttree.h	ocfs2: remove ocfs2_reflink_remap_range	2018-10-30 10:45:48 +11:00
reservations.c	…
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: Use zero-sized array and struct_size() in kzalloc()	2019-03-05 21:07:13 -08:00
slot_map.h	…
stack_o2cb.c	…
stack_user.c	treewide: Align function definition open/close braces	2018-03-26 11:13:09 +02:00
stackglue.c	ocfs2: remove ocfs2_is_o2cb_active()	2018-11-03 10:09:37 -07:00
stackglue.h	ocfs2: remove ocfs2_is_o2cb_active()	2018-11-03 10:09:37 -07:00
suballoc.c	ocfs2: remove two unused functions from suballoc.c	2018-04-05 21:36:22 -07:00
suballoc.h	…
super.c	ocfs2: fix the application IO timeout when fstrim is running	2019-03-05 21:07:13 -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	treewide: kzalloc() -> kcalloc()	2018-06-12 16:19:22 -07:00
sysfile.h	…
uptodate.c	ocfs2: remove unnecessary null pointer check before kmem_cache_destroy()	2018-04-05 21:36:22 -07:00
uptodate.h	…
xattr.c	ocfs2: use 'osb' instead of 'OCFS2_SB()'	2018-04-05 21:36:21 -07:00
xattr.h	ocfs2: fix posix_acl_create deadlock	2016-05-12 15:52:50 -07:00