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xfs: mark xfs_buf_free as might_sleep()

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xfs_buf_free can call vunmap, which can sleep.  The vunmap path is an
unlikely one, so add might_sleep to ensure calling xfs_buf_free from
atomic context gets caught more easily.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Carlos Maiolino <cmaiolino@redhat.com>
Signed-off-by: Carlos Maiolino <cem@kernel.org>
This commit is contained in:
Christoph Hellwig 2025-03-20 08:52:14 +01:00 committed by Carlos Maiolino
parent b73e05281c
commit a1a56f541a
1 changed files with 1 additions and 0 deletions
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fs/xfs/xfs_buf.c
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@ -105,6 +105,7 @@ xfs_buf_free(
{
unsigned int size = BBTOB(bp->b_length);
might_sleep();
trace_xfs_buf_free(bp, _RET_IP_);
ASSERT(list_empty(&bp->b_lru));