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authorBrian Foster <bfoster@redhat.com>2021-10-14 12:56:08 -0700
committerDarrick J. Wong <djwong@kernel.org>2021-10-19 11:45:12 -0700
commitbf2307b195135ed9c95eebb38920d8bd41843092 (patch)
tree274b85c5c8f67dd9f583feb572f3286643e3cc8c
parent53eb47b491c86ab23787fa561a6dc8378cb0eb36 (diff)
downloadlinux-bf2307b195135ed9c95eebb38920d8bd41843092.tar.bz2
xfs: fold perag loop iteration logic into helper function
Fold the loop iteration logic into a helper in preparation for further fixups. No functional change in this patch. Signed-off-by: Brian Foster <bfoster@redhat.com> Reviewed-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Signed-off-by: Darrick J. Wong <djwong@kernel.org>
-rw-r--r--fs/xfs/libxfs/xfs_ag.h16
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/xfs/libxfs/xfs_ag.h b/fs/xfs/libxfs/xfs_ag.h
index 4c6f9045baca..ddb89e10b6ea 100644
--- a/fs/xfs/libxfs/xfs_ag.h
+++ b/fs/xfs/libxfs/xfs_ag.h
@@ -124,12 +124,22 @@ void xfs_perag_put(struct xfs_perag *pag);
* for_each_perag_from() because they terminate at sb_agcount where there are
* no perag structures in tree beyond end_agno.
*/
+static inline struct xfs_perag *
+xfs_perag_next(
+ struct xfs_perag *pag,
+ xfs_agnumber_t *next_agno)
+{
+ struct xfs_mount *mp = pag->pag_mount;
+
+ *next_agno = pag->pag_agno + 1;
+ xfs_perag_put(pag);
+ return xfs_perag_get(mp, *next_agno);
+}
+
#define for_each_perag_range(mp, next_agno, end_agno, pag) \
for ((pag) = xfs_perag_get((mp), (next_agno)); \
(pag) != NULL && (next_agno) <= (end_agno); \
- (next_agno) = (pag)->pag_agno + 1, \
- xfs_perag_put(pag), \
- (pag) = xfs_perag_get((mp), (next_agno)))
+ (pag) = xfs_perag_next((pag), &(next_agno)))
#define for_each_perag_from(mp, next_agno, pag) \
for_each_perag_range((mp), (next_agno), (mp)->m_sb.sb_agcount, (pag))