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authorLinus Torvalds <torvalds@linux-foundation.org>2023-06-29 23:18:36 +0300
committerLinus Torvalds <torvalds@linux-foundation.org>2023-06-29 23:18:36 +0300
commit53ea167b212f675e40420498e46fa31553b406ac (patch)
treeab4be1f5f439c563eac041cf5902cbf184158db8 /Documentation/filesystems
parentb9d02c224d00a412d9c7fb1f92c358604038a783 (diff)
parent2ef6c32a914b85217b44a0a2418e830e520b085e (diff)
downloadlinux-53ea167b212f675e40420498e46fa31553b406ac.tar.xz
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o: "Various cleanups and bug fixes in ext4's extent status tree, journalling, and block allocator subsystems. Also improve performance for parallel DIO overwrites" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (55 commits) ext4: avoid updating the superblock on a r/o mount if not needed jbd2: skip reading super block if it has been verified ext4: fix to check return value of freeze_bdev() in ext4_shutdown() ext4: refactoring to use the unified helper ext4_quotas_off() ext4: turn quotas off if mount failed after enabling quotas ext4: update doc about journal superblock description ext4: add journal cycled recording support jbd2: continue to record log between each mount jbd2: remove j_format_version jbd2: factor out journal initialization from journal_get_superblock() jbd2: switch to check format version in superblock directly jbd2: remove unused feature macros ext4: ext4_put_super: Remove redundant checking for 'sbi->s_journal_bdev' ext4: Fix reusing stale buffer heads from last failed mounting ext4: allow concurrent unaligned dio overwrites ext4: clean up mballoc criteria comments ext4: make ext4_zeroout_es() return void ext4: make ext4_es_insert_extent() return void ext4: make ext4_es_insert_delayed_block() return void ext4: make ext4_es_remove_extent() return void ...
Diffstat (limited to 'Documentation/filesystems')
-rw-r--r--Documentation/filesystems/ext4/journal.rst7
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/filesystems/ext4/journal.rst b/Documentation/filesystems/ext4/journal.rst
index a6bef5293a60..6e8fb2d4b46f 100644
--- a/Documentation/filesystems/ext4/journal.rst
+++ b/Documentation/filesystems/ext4/journal.rst
@@ -260,8 +260,13 @@ which is 1024 bytes long:
- s_num_fc_blocks
- Number of fast commit blocks in the journal.
* - 0x58
+ - __be32
+ - s_head
+ - Block number of the head (first unused block) of the journal, only
+ up-to-date when the journal is empty.
+ * - 0x5C
- __u32
- - s_padding[42]
+ - s_padding[40]
-
* - 0xFC
- __be32