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xfs: fix unused variable warning in xfs_buf_set_ref()

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Fix an unused variable warning on non-DEBUG builds introduced by
commit 7561d27e90 ("xfs: buffer lru reference count error injection
tag").

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Brian Foster 2017-10-27 09:20:28 -07:00 committed by Darrick J. Wong
parent 2fdbec5cbe
commit 4eadcf9a41
1 changed files with 2 additions and 3 deletions
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5
fs/xfs/xfs_buf.c
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@ -2133,14 +2133,13 @@ xfs_buf_terminate(void)
void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref) void xfs_buf_set_ref(struct xfs_buf *bp, int lru_ref)
{ {
struct xfs_mount *mp = bp->b_target->bt_mount;
/* /*
* Set the lru reference count to 0 based on the error injection tag. * Set the lru reference count to 0 based on the error injection tag.
* This allows userspace to disrupt buffer caching for debug/testing * This allows userspace to disrupt buffer caching for debug/testing
* purposes. * purposes.
*/ */
if (XFS_TEST_ERROR(false, mp, XFS_ERRTAG_BUF_LRU_REF)) if (XFS_TEST_ERROR(false, bp->b_target->bt_mount,
XFS_ERRTAG_BUF_LRU_REF))
lru_ref = 0; lru_ref = 0;
atomic_set(&bp->b_lru_ref, lru_ref); atomic_set(&bp->b_lru_ref, lru_ref);