Al Viro
2d2d3f1ee7
do d_instantiate/unlock_new_inode combinations safely ...
commit 1e2e547a93a00ebc21582c06ca3c6cfea2a309ee upstream.
For anything NFS-exported we do _not_ want to unlock new inode
before it has grown an alias; original set of fixes got the
ordering right, but missed the nasty complication in case of
lockdep being enabled - unlock_new_inode() does
lockdep_annotate_inode_mutex_key(inode)
which can only be done before anyone gets a chance to touch
->i_mutex. Unfortunately, flipping the order and doing
unlock_new_inode() before d_instantiate() opens a window when
mkdir can race with open-by-fhandle on a guessed fhandle, leading
to multiple aliases for a directory inode and all the breakage
that follows from that.
Correct solution: a new primitive (d_instantiate_new())
combining these two in the right order - lockdep annotate, then
d_instantiate(), then the rest of unlock_new_inode(). All
combinations of d_instantiate() with unlock_new_inode() should
be converted to that.
Cc: stable@kernel.org # 2.6.29 and later
Tested-by: Mike Marshall <hubcap@omnibond.com>
Reviewed-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-30 07:50:16 +02:00
ext4: Don't clear SGID when inheriting ACLs
2017-10-12 11:51:26 +02:00
ext2/3/4: use generic posix ACL infrastructure
2014-01-25 23:58:19 -05:00
ext4: fix bitmap position validation
2018-05-01 15:13:03 -07:00
ext4: remove unused header files
2015-04-02 23:47:42 -04:00
ext4: add missing KERN_CONT to a few more debugging uses
2016-10-15 09:57:31 -04:00
ext4: remove unused variable
2016-09-30 02:14:56 -04:00
ext4: sanity check the block and cluster size at mount time
2016-11-19 20:58:15 -05:00
ext4: fix misspellings in comments.
2016-03-09 23:49:05 -05:00
ext4: fix potential use after free in __ext4_journal_stop
2015-10-17 22:57:06 -04:00
ext4: do not perform data journaling when data is encrypted
2017-01-06 10:40:14 +01:00
ext4: prevent right-shifting extents beyond EXT_MAX_BLOCKS
2018-05-01 15:13:03 -07:00
ext4: remove trailing \n from ext4_warning/ext4_error calls
2016-04-27 01:11:21 -04:00
ext4: move procfs registration code to fs/ext4/sysfs.c
2015-09-23 12:46:17 -04:00
ext4: fix off-by-one on max nr_pages in ext4_find_unwritten_pgoff()
2018-04-13 19:48:06 +02:00
ext4: cleanup ext4_sync_parent()
2016-09-05 23:21:43 -04:00
ext4: remove unused header files
2015-04-02 23:47:42 -04:00
ext4: add validity checks for bitmap block numbers
2018-05-01 15:13:03 -07:00
ext4: refactor direct IO code
2016-05-13 00:44:16 -04:00
ext4: mark inode dirty after converting inline directory
2017-03-30 09:41:25 +02:00
ext4: fail ext4_iget for root directory if unallocated
2018-04-24 09:34:12 +02:00
Lots of bug fixes and cleanups.
2016-10-07 15:15:33 -07:00
ext4 crypto: migrate into vfs's crypto engine
2016-07-10 14:01:03 -04:00
ext4 crypto: migrate into vfs's crypto engine
2016-07-10 14:01:03 -04:00
ext4: handle the rest of ext4_mb_load_buddy() ENOMEM errors
2018-04-13 19:48:02 +02:00
ext4: add missing KERN_CONT to a few more debugging uses
2016-10-15 09:57:31 -04:00
ext4: fix misspellings in comments.
2016-03-09 23:49:05 -05:00
fs: have submit_bh users pass in op and flags separately
2016-06-07 13:41:38 -06:00
fs: add i_blocksize()
2017-06-14 15:06:00 +02:00
do d_instantiate/unlock_new_inode combinations safely
2018-05-30 07:50:16 +02:00
fs: use mapping_set_error instead of opencoded set_bit
2016-10-11 15:06:33 -07:00
Merge branch 'akpm' (patches from Andrew)
2016-07-26 19:55:54 -07:00
ext4: fix overflow caused by missing cast in ext4_resize_fs()
2017-08-11 08:49:30 -07:00
ext4: don't allow r/w mounts if metadata blocks overlap the superblock
2018-04-24 09:34:15 +02:00
Merge branch 'work.xattr' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
2016-10-10 17:11:50 -07:00
ext4: check return value of kstrtoull correctly in reserved_clusters_store
2017-07-15 12:16:16 +02:00
ext4: fix races between page faults and hole punching
2015-12-07 14:28:03 -05:00
ext4: inplace xattr block update fails to deduplicate blocks
2018-03-18 11:18:54 +01:00
ext4: fix deadlock between inline_data and ext4_expand_extra_isize_ea()
2017-03-12 06:41:41 +01:00
switch xattr_handler->set() to passing dentry and inode separately
2016-05-27 15:39:43 -04:00
switch xattr_handler->set() to passing dentry and inode separately
2016-05-27 15:39:43 -04:00
switch xattr_handler->set() to passing dentry and inode separately
2016-05-27 15:39:43 -04:00
2d2d3f1ee7