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authorDavid Chinner <david@fromorbit.com>2008-10-30 08:55:03 +0300
committerLachlan McIlroy <lachlan@sgi.com>2008-10-30 08:55:03 +0300
commit854929f05831d3a290a802815ee955b96c740c61 (patch)
tree6a0ff769e72eaed88c210dc3725594a7d53dfdb7 /fs/xfs/xfs_btree.h
parenta23f6ef8ce966abc0f6e24a81ceb6a74ed30693b (diff)
downloadlinux-854929f05831d3a290a802815ee955b96c740c61.tar.xz
[XFS] add new btree statistics
From: Dave Chinner <dgc@sgi.com> Introduce statistics coverage of all the btrees and cover all the btree operations, not just some. Invaluable for determining test code coverage of all the btree operations.... SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32184a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_btree.h')
-rw-r--r--fs/xfs/xfs_btree.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/fs/xfs/xfs_btree.h b/fs/xfs/xfs_btree.h
index a57918276d9f..57d3bd37526e 100644
--- a/fs/xfs/xfs_btree.h
+++ b/fs/xfs/xfs_btree.h
@@ -121,6 +121,34 @@ union xfs_btree_rec {
extern const __uint32_t xfs_magics[];
/*
+ * Generic stats interface
+ */
+#define __XFS_BTREE_STATS_INC(type, stat) \
+ XFS_STATS_INC(xs_ ## type ## _2_ ## stat)
+#define XFS_BTREE_STATS_INC(cur, stat) \
+do { \
+ switch (cur->bc_btnum) { \
+ case XFS_BTNUM_BNO: __XFS_BTREE_STATS_INC(abtb, stat); break; \
+ case XFS_BTNUM_CNT: __XFS_BTREE_STATS_INC(abtc, stat); break; \
+ case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(bmbt, stat); break; \
+ case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(ibt, stat); break; \
+ case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \
+ } \
+} while (0)
+
+#define __XFS_BTREE_STATS_ADD(type, stat, val) \
+ XFS_STATS_ADD(xs_ ## type ## _2_ ## stat, val)
+#define XFS_BTREE_STATS_ADD(cur, stat, val) \
+do { \
+ switch (cur->bc_btnum) { \
+ case XFS_BTNUM_BNO: __XFS_BTREE_STATS_ADD(abtb, stat, val); break; \
+ case XFS_BTNUM_CNT: __XFS_BTREE_STATS_ADD(abtc, stat, val); break; \
+ case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_ADD(bmbt, stat, val); break; \
+ case XFS_BTNUM_INO: __XFS_BTREE_STATS_ADD(ibt, stat, val); break; \
+ case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \
+ } \
+} while (0)
+/*
* Maximum and minimum records in a btree block.
* Given block size, type prefix, and leaf flag (0 or 1).
* The divisor below is equivalent to lf ? (e1) : (e2) but that produces