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Chao Yu 46ef58a80b f2fs: don't over-report free space or inodes in statvfs

[ Upstream commit a920196062 ]

This fixes an analogus bug that was fixed in modern filesystems:
a) xfs in commit 4b8d867ca6 ("xfs: don't over-report free space or
inodes in statvfs")
b) ext4 in commit f87d3af741 ("ext4: don't over-report free space
or inodes in statvfs")
where statfs can report misleading / incorrect information where
project quota is enabled, and the free space is less than the
remaining quota.

This commit will resolve a test failure in generic/762 which tests
for this bug.

generic/762       - output mismatch (see /share/git/fstests/results//generic/762.out.bad)
#    --- tests/generic/762.out   2025-04-15 10:21:53.371067071 +0800
#    +++ /share/git/fstests/results//generic/762.out.bad 2025-05-13 16:13:37.000000000 +0800
#    @@ -6,8 +6,10 @@
#     root blocks2 is in range
#     dir blocks2 is in range
#     root bavail2 is in range
#    -dir bavail2 is in range
#    +dir bavail2 has value of 1539066
#    +dir bavail2 is NOT in range 304734.87 .. 310891.13
#     root blocks3 is in range
#    ...
#    (Run 'diff -u /share/git/fstests/tests/generic/762.out /share/git/fstests/results//generic/762.out.bad'  to see the entire diff)

HINT: You _MAY_ be missing kernel fix:
      XXXXXXXXXXXXXX xfs: don't over-report free space or inodes in statvfs

Cc: stable@kernel.org
Fixes: ddc34e328d ("f2fs: introduce f2fs_statfs_project")
Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2025-07-06 10:57:57 +02:00

acl.c

…

acl.h

…

checkpoint.c

…

compress.c

…

data.c

f2fs: fix to detect gcing page in f2fs_is_cp_guaranteed()

2025-06-27 11:07:10 +01:00