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cce6c9f7e6
linux/fs/ext4
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Toshi Kani cce6c9f7e6 ext4, dax: set ext4_dax_aops for dax files 
Sync syscall to DAX file needs to flush processor cache, but it
currently does not flush to existing DAX files.  This is because
'ext4_da_aops' is set to address_space_operations of existing DAX
files, instead of 'ext4_dax_aops', since S_DAX flag is set after
ext4_set_aops() in the open path.

  New file
  --------
  lookup_open
    ext4_create
      __ext4_new_inode
        ext4_set_inode_flags   // Set S_DAX flag
      ext4_set_aops            // Set aops to ext4_dax_aops

  Existing file
  -------------
  lookup_open
    ext4_lookup
      ext4_iget
        ext4_set_aops          // Set aops to ext4_da_aops
        ext4_set_inode_flags   // Set S_DAX flag

Change ext4_iget() to initialize i_flags before ext4_set_aops().

Fixes: 5f0663bb4a ("ext4, dax: introduce ext4_dax_aops")
Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Suggested-by: Jan Kara <jack@suse.cz>
Cc: stable@vger.kernel.org
2018-09-15 21:37:59 -04:00
..
acl.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acl.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
balloc.c ext4: use ext4_warning() for sb_getblk failure 2018-08-01 12:02:31 -04:00
bitmap.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
block_validity.c ext4: use 'sbi' instead of 'EXT4_SB(sb)' 2018-01-11 13:17:49 -05:00
dir.c ext4: avoid divide by zero fault when deleting corrupted inline directories 2018-08-27 09:22:45 -04:00
ext4_extents.h ext4: verify the depth of extent tree in ext4_find_extent() 2018-06-14 12:55:10 -04:00
ext4_jbd2.c ext4: shutdown should not prevent get_write_access 2018-02-18 22:07:36 -05:00
ext4_jbd2.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ext4.h ext4: avoid arithemetic overflow that can trigger a BUG 2018-09-01 12:45:04 -04:00
extents_status.c ext4: remove NULL check before calling kmem_cache_destroy() 2018-05-20 22:44:13 -04:00
extents_status.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
extents.c ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
file.c ext4: do not update s_last_mounted of a frozen fs 2018-05-13 22:54:44 -04:00
fsmap.c ext4: make function ‘ext4_getfsmap_find_fixed_metadata’ static 2018-05-10 11:50:04 -04:00
fsmap.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
fsync.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
hash.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ialloc.c ext4: use ext4_warning() for sb_getblk failure 2018-08-01 12:02:31 -04:00
indirect.c ext4: fix hole length detection in ext4_ind_map_blocks() 2018-05-12 19:55:00 -04:00
inline.c ext4: avoid divide by zero fault when deleting corrupted inline directories 2018-08-27 09:22:45 -04:00
inode.c ext4, dax: set ext4_dax_aops for dax files 2018-09-15 21:37:59 -04:00
ioctl.c ext4: remove EXT4_STATE_DIOREAD_LOCK flag 2018-03-22 11:52:10 -04:00
Kconfig fs/*/Kconfig: drop links to 404-compliant http://acl.bestbits.at 2018-01-01 12:45:37 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mballoc.c ext4: remove unneeded variable "err" in ext4_mb_release_inode_pa() 2018-08-04 17:34:07 -04:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
mmp.c ext4: don't mark mmp buffer head dirty 2018-09-15 17:11:25 -04:00
move_extent.c ext4: use swap macro in mext_page_double_lock 2018-07-29 16:11:59 -04:00
namei.c ext4: check to make sure the rename(2)'s destination is not freed 2018-08-27 01:47:09 -04:00
page-io.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
readpage.c fscrypt: allow synchronous bio decryption 2018-05-02 14:30:57 -07:00
resize.c ext4: fix online resizing for bigalloc file systems with a 1k block size 2018-09-03 22:25:01 -04:00
super.c ext4: show test_dummy_encryption mount option in /proc/mounts 2018-09-15 14:28:26 -04:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c ext4: super: extend timestamps to 40 bits 2018-07-29 15:51:48 -04:00
truncate.h ext4: handle layout changes to pinned DAX mappings 2018-07-29 17:00:22 -04:00
xattr_security.c ext4: use XATTR_CREATE in ext4_initxattrs() 2018-05-10 11:52:14 -04:00
xattr_trusted.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr_user.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xattr.c ext4: check for NUL characters in extended attribute's name 2018-08-01 12:36:52 -04:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00