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| author | Dave Chinner <david@fromorbit.com> | 2010-01-11 11:47:46 +0000 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2010-01-15 15:34:12 -0600 |
| commit | 0fa800fbd549736dfdc1d7761f87e33dc8cd973b (patch) | |
| tree | 3940f2f5bc4bb3bec888f7ef9ed8a8c875e02695 /fs/xfs/xfs_mount.h | |
| parent | aed3bb90abaf0b42e8c8747e192f7bb97f445279 (diff) | |
| download | linux-0fa800fbd549736dfdc1d7761f87e33dc8cd973b.tar.gz linux-0fa800fbd549736dfdc1d7761f87e33dc8cd973b.tar.bz2 linux-0fa800fbd549736dfdc1d7761f87e33dc8cd973b.zip | |
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>
Diffstat (limited to 'fs/xfs/xfs_mount.h')
| -rw-r--r-- | fs/xfs/xfs_mount.h | 25 |
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 |