linux/fs/ext4
Andreas Dilger c9e716eb9b ext4: don't update s_rev_level if not required
Don't update the superblock s_rev_level during mount if it isn't
actually necessary, only if superblock features are being set by
the kernel.  This was originally added for ext3 since it always
set the INCOMPAT_RECOVER and HAS_JOURNAL features during mount,
but this is not needed since no journal mode was added to ext4.

That will allow Geert to mount his 20-year-old ext2 rev 0.0 m68k
filesystem, as a testament of the backward compatibility of ext4.

Fixes: 0390131ba8 ("ext4: Allow ext4 to run without a journal")
Signed-off-by: Andreas Dilger <adilger@dilger.ca>
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2019-02-14 17:52:18 -05:00
..
acl.c ext4: compare old and new mode before setting update_mode flag 2018-12-10 00:22:38 -05:00
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: adjust reserved cluster count when removing extents 2018-10-01 14:25:08 -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: don't update s_rev_level if not required 2019-02-14 17:52:18 -05:00
extents_status.c ext4: fix reserved cluster accounting at page invalidation time 2018-10-01 14:33:24 -04:00
extents_status.h ext4: reduce reserved cluster count by number of allocated clusters 2018-10-01 14:24:08 -04:00
extents.c ext4: cleanup clean_bdev_aliases() calls 2019-02-10 23:32:07 -05:00
file.c dax: remove VM_MIXEDMAP for fsdax and device dax 2018-08-17 16:20:27 -07:00
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 Revert "ext4: use ext4_write_inode() when fsyncing w/o a journal" 2019-01-31 23:41:11 -05:00
hash.c ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
ialloc.c ext4: avoid declaring fs inconsistent due to invalid file handles 2018-12-19 12:29:13 -05:00
indirect.c ext4: fix hole length detection in ext4_ind_map_blocks() 2018-05-12 19:55:00 -04:00
inline.c ext4: fix a potential fiemap/page fault deadlock w/ inline_data 2018-12-25 00:56:33 -05:00
inode.c ext4: don't update s_rev_level if not required 2019-02-14 17:52:18 -05:00
ioctl.c ext4: disallow files with EXT4_JOURNAL_DATA_FL from EXT4_IOC_SWAP_BOOT 2019-02-11 01:07:10 -05:00
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: replace opencoded i_writecount usage with inode_is_open_for_write() 2019-02-10 23:04:16 -05:00
mballoc.h ext4: fix up remaining files with SPDX cleanups 2017-12-17 22:00:59 -05:00
migrate.c ext4: clean up indentation issues, remove extraneous tabs 2018-12-04 00:16:44 -05:00
mmp.c ext4: don't mark mmp buffer head dirty 2018-09-15 17:11:25 -04:00
move_extent.c ext4: fix argument checking in EXT4_IOC_MOVE_EXT 2018-10-02 01:34:44 -04:00
namei.c ext4: avoid declaring fs inconsistent due to invalid file handles 2018-12-19 12:29:13 -05:00
page-io.c ext4: cleanup clean_bdev_aliases() calls 2019-02-10 23:32:07 -05:00
readpage.c fs: don't open code lru_to_page() 2019-01-04 13:13:48 -08:00
resize.c ext4: fix crash during online resizing 2019-02-11 13:30:32 -05:00
super.c ext4: don't update s_rev_level if not required 2019-02-14 17:52:18 -05:00
symlink.c ext4: switch to fscrypt_get_symlink() 2018-01-11 22:10:40 -05:00
sysfs.c for-4.19/block-20180812 2018-08-14 10:23:25 -07:00
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: avoid declaring fs inconsistent due to invalid file handles 2018-12-19 12:29:13 -05:00
xattr.h ext4: add extra checks to ext4_xattr_block_get() 2018-03-30 20:04:11 -04:00