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xfs: free xfs_busy_extents structure when no RT extents are queued

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kmemleak occasionally reports leaking xfs_busy_extents structure
from xfs_scrub calls after running xfs/528 (but attributed to following
tests), which seems to be caused by not freeing the xfs_busy_extents
structure when tr.queued is 0 and xfs_trim_rtgroup_extents breaks out
of the main loop.  Free the structure in this case.

Fixes: a3315d11305f ("xfs: use rtgroup busy extent list for FITRIM")
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-11-04 05:43:01 -05:00 committed by Carlos Maiolino
parent 21ab5179aa
commit d8a823c6f0
1 changed files with 3 additions and 1 deletions
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4
fs/xfs/xfs_discard.c
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@ -726,8 +726,10 @@ xfs_trim_rtgroup_extents(
break;
}
if (!tr.queued)
if (!tr.queued) {
kfree(tr.extents);
break;
}
/*
* We hand the extent list to the discard function here so the