This is a note to let you know that I've just added the patch titled
ext4: don't track ranges in fast_commit if inode has inlined data
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
ext4-don-t-track-ranges-in-fast_commit-if-inode-has-.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 08b28c201ac821989b833f152108b7b4d5ed4e0b
Author: Luis Henriques (SUSE) <luis.henriques@xxxxxxxxx>
Date: Tue Jun 18 15:43:12 2024 +0100
ext4: don't track ranges in fast_commit if inode has inlined data
[ Upstream commit 7882b0187bbeb647967a7b5998ce4ad26ef68a9a ]
When fast-commit needs to track ranges, it has to handle inodes that have
inlined data in a different way because ext4_fc_write_inode_data(), in the
actual commit path, will attempt to map the required blocks for the range.
However, inodes that have inlined data will have it's data stored in
inode->i_block and, eventually, in the extended attribute space.
Unfortunately, because fast commit doesn't currently support extended
attributes, the solution is to mark this commit as ineligible.
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1039883
Signed-off-by: Luis Henriques (SUSE) <luis.henriques@xxxxxxxxx>
Tested-by: Ben Hutchings <benh@xxxxxxxxxx>
Fixes: 9725958bb75c ("ext4: fast commit may miss tracking unwritten range during ftruncate")
Link: https://patch.msgid.link/20240618144312.17786-1-luis.henriques@xxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/fs/ext4/fast_commit.c b/fs/ext4/fast_commit.c
index c6814edf0ce0a..e81b886d9c673 100644
--- a/fs/ext4/fast_commit.c
+++ b/fs/ext4/fast_commit.c
@@ -617,6 +617,12 @@ void ext4_fc_track_range(handle_t *handle, struct inode *inode, ext4_lblk_t star
if (ext4_test_mount_flag(inode->i_sb, EXT4_MF_FC_INELIGIBLE))
return;
+ if (ext4_has_inline_data(inode)) {
+ ext4_fc_mark_ineligible(inode->i_sb, EXT4_FC_REASON_XATTR,
+ handle);
+ return;
+ }
+
args.start = start;
args.end = end;
