Toshi Kani ec215095ac ext4, dax: set ext4_dax_aops for dax files ...

commit cce6c9f7e6 upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2018-09-29 02:56:02 -07:00

..

acl.c

…

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

2018-09-05 09:29:44 +02:00

bitmap.c

…

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

2018-09-29 02:56:00 -07:00

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

2018-09-29 02:56:00 -07:00

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

Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2018-07-08 11:10:30 -07:00

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

…

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

2018-09-05 09:29:44 +02:00

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

2018-09-29 02:56:00 -07:00

inode.c

ext4, dax: set ext4_dax_aops for dax files

2018-09-29 02:56:02 -07:00

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

…

mballoc.c

ext4: fix spectre gadget in ext4_mb_regular_allocator()

2018-08-24 13:04:49 +02:00

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

2018-09-29 02:56:02 -07:00

move_extent.c

ext4: remove EXT4_STATE_DIOREAD_LOCK flag

2018-03-22 11:52:10 -04:00

namei.c

ext4: check to make sure the rename(2)'s destination is not freed

2018-09-29 02:56:00 -07:00

page-io.c

…

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

2018-09-29 02:56:02 -07:00

super.c

ext4: show test_dummy_encryption mount option in /proc/mounts

2018-09-29 02:56:02 -07:00

symlink.c

ext4: switch to fscrypt_get_symlink()

2018-01-11 22:10:40 -05:00

sysfs.c

ext4: sysfs: print ext4_super_block fields as little-endian

2018-09-05 09:29:44 +02:00

truncate.h

ext4: fix up remaining files with SPDX cleanups

2017-12-17 22:00:59 -05:00

xattr_security.c

ext4: use XATTR_CREATE in ext4_initxattrs()

2018-05-10 11:52:14 -04:00

xattr_trusted.c

…

xattr_user.c

…

xattr.c

ext4: check for NUL characters in extended attribute's name

2018-09-05 09:29:44 +02:00

xattr.h

ext4: add extra checks to ext4_xattr_block_get()

2018-03-30 20:04:11 -04:00