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authorLinus Torvalds <torvalds@linux-foundation.org>2019-03-12 15:03:21 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2019-03-12 15:03:21 -0700
commita5adcfcad55d5f034b33f79f1a873229d1e77b24 (patch)
treee9548efcccb8f5ed3e120b0ca36ad04de116cdb7 /Documentation/ABI
parent2b0a80b0d0bb0a3db74588279bf851b28c6c4705 (diff)
parent0df6f46995a9fc92a6b9e591428e77527dd9609a (diff)
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 updates from Ted Ts'o: "A large number of bug fixes and cleanups. One new feature to allow users to more easily find the jbd2 journal thread for a particular ext4 file system" * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (25 commits) jbd2: jbd2_get_transaction does not need to return a value jbd2: fix invalid descriptor block checksum ext4: fix bigalloc cluster freeing when hole punching under load ext4: add sysfs attr /sys/fs/ext4/<disk>/journal_task ext4: Change debugging support help prefix from EXT4 to Ext4 ext4: fix compile error when using BUFFER_TRACE jbd2: fix compile warning when using JBUFFER_TRACE ext4: fix some error pointer dereferences ext4: annotate more implicit fall throughs ext4: annotate implicit fall throughs ext4: don't update s_rev_level if not required jbd2: fold jbd2_superblock_csum_{verify,set} into their callers jbd2: fix race when writing superblock ext4: fix crash during online resizing ext4: disallow files with EXT4_JOURNAL_DATA_FL from EXT4_IOC_SWAP_BOOT ext4: add mask of ext4 flags to swap ext4: update quota information while swapping boot loader inode ext4: cleanup pagecache before swap i_data ext4: fix check of inode in swap_inode_boot_loader ext4: unlock unused_pages timely when doing writeback ...
Diffstat (limited to 'Documentation/ABI')
-rw-r--r--Documentation/ABI/testing/sysfs-fs-ext47
1 files changed, 7 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/sysfs-fs-ext4 b/Documentation/ABI/testing/sysfs-fs-ext4
index c631253cf85c..78604db56279 100644
--- a/Documentation/ABI/testing/sysfs-fs-ext4
+++ b/Documentation/ABI/testing/sysfs-fs-ext4
@@ -109,3 +109,10 @@ Description:
write operation (since a 4k random write might turn
into a much larger write due to the zeroout
operation).
+
+What: /sys/fs/ext4/<disk>/journal_task
+Date: February 2019
+Contact: "Theodore Ts'o" <tytso@mit.edu>
+Description:
+ This file is read-only and shows the pid of journal thread in
+ current pid-namespace or 0 if task is unreachable.