xfs: Convert filestreams code to use per-ag get/put routines

Use xfs_perag_get() and xfs_perag_put() in the filestreams code.

Signed-off-by: Dave Chinner <david@fromorbit.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Alex Elder <aelder@sgi.com>

1 files changed, 24 insertions, 3 deletions

diff --git a/fs/xfs/xfs_filestream.h b/fs/xfs/xfs_filestream.h
index 4aba67c5f64f..58378b2ea033 100644
--- a/fs/xfs/xfs_filestream.h
+++ b/fs/xfs/xfs_filestream.h
@@ -79,12 +79,21 @@ extern ktrace_t *xfs_filestreams_trace_buf;
  * the cache that reference per-ag array elements that have since been
  * reallocated.
  */
+/*
+ * xfs_filestream_peek_ag is only used in tracing code
+ */
 static inline int
 xfs_filestream_peek_ag(
         xfs_mount_t     *mp,
         xfs_agnumber_t  agno)
 {
-        return atomic_read(&mp->m_perag[agno].pagf_fstrms);
+        struct xfs_perag *pag;
+        int             ret;
+
+        pag = xfs_perag_get(mp, agno);
+        ret = atomic_read(&pag->pagf_fstrms);
+        xfs_perag_put(pag);
+        return ret;
 }
 
 static inline int
@@ -92,7 +101,13 @@ xfs_filestream_get_ag(
         xfs_mount_t     *mp,
         xfs_agnumber_t  agno)
 {
-        return atomic_inc_return(&mp->m_perag[agno].pagf_fstrms);
+        struct xfs_perag *pag;
+        int             ret;
+
+        pag = xfs_perag_get(mp, agno);
+        ret = atomic_inc_return(&pag->pagf_fstrms);
+        xfs_perag_put(pag);
+        return ret;
 }
 
 static inline int
@@ -100,7 +115,13 @@ xfs_filestream_put_ag(
         xfs_mount_t     *mp,
         xfs_agnumber_t  agno)
 {
-        return atomic_dec_return(&mp->m_perag[agno].pagf_fstrms);
+        struct xfs_perag *pag;
+        int             ret;
+
+        pag = xfs_perag_get(mp, agno);
+        ret = atomic_dec_return(&pag->pagf_fstrms);
+        xfs_perag_put(pag);
+        return ret;
 }
 
 /* allocation selection flags */