xfs: Add trace points for per-ag refcount debugging.

Uninline xfs_perag_{get,put} so that tracepoints can be inserted
into them to speed debugging of reference count problems.

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, 2 insertions, 23 deletions

diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 16b22120b98f..e62fd1cde464 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -386,29 +386,8 @@ xfs_daddr_to_agbno(struct xfs_mount *mp, xfs_daddr_t d)
 /*
  * perag get/put wrappers for ref counting
  */
-static inline struct xfs_perag *
-xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno)
-{
-        struct xfs_perag        *pag;
-
-        spin_lock(&mp->m_perag_lock);
-        pag = radix_tree_lookup(&mp->m_perag_tree, agno);
-        if (pag) {
-                ASSERT(atomic_read(&pag->pag_ref) >= 0);
-                /* catch leaks in the positive direction during testing */
-                ASSERT(atomic_read(&pag->pag_ref) < 1000);
-                atomic_inc(&pag->pag_ref);
-        }
-        spin_unlock(&mp->m_perag_lock);
-        return pag;
-}
-
-static inline void
-xfs_perag_put(struct xfs_perag *pag)
-{
-        ASSERT(atomic_read(&pag->pag_ref) > 0);
-        atomic_dec(&pag->pag_ref);
-}
+struct xfs_perag *xfs_perag_get(struct xfs_mount *mp, xfs_agnumber_t agno);
+void    xfs_perag_put(struct xfs_perag *pag);
 
 /*
  * Per-cpu superblock locking functions