[PATCH 1/3] xfs: fold perag loop iteration logic into helper function
From: Brian Foster <hidden>
Date: 2021-10-07 12:51:01
Subsystem:
filesystems (vfs and infrastructure), the rest, xfs filesystem · Maintainers:
Alexander Viro, Christian Brauner, Linus Torvalds, Carlos Maiolino
Fold the loop iteration logic into a helper in preparation for further fixups. No functional change in this patch. Signed-off-by: Brian Foster <redacted> --- fs/xfs/libxfs/xfs_ag.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/fs/xfs/libxfs/xfs_ag.h b/fs/xfs/libxfs/xfs_ag.h
index 4c6f9045baca..d05a04f3c985 100644
--- a/fs/xfs/libxfs/xfs_ag.h
+++ b/fs/xfs/libxfs/xfs_ag.h@@ -124,12 +124,23 @@ 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); + pag = xfs_perag_get(mp, *next_agno); + return pag; +} + #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))
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2.31.1