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| author | David Chinner <david@fromorbit.com> | 2008-10-30 16:55:03 +1100 |
|---|---|---|
| committer | Lachlan McIlroy <lachlan@sgi.com> | 2008-10-30 16:55:03 +1100 |
| commit | 854929f05831d3a290a802815ee955b96c740c61 (patch) | |
| tree | 6a0ff769e72eaed88c210dc3725594a7d53dfdb7 /fs/xfs/xfs_btree.h | |
| parent | a23f6ef8ce966abc0f6e24a81ceb6a74ed30693b (diff) | |
| download | linux-854929f05831d3a290a802815ee955b96c740c61.tar.gz linux-854929f05831d3a290a802815ee955b96c740c61.tar.bz2 linux-854929f05831d3a290a802815ee955b96c740c61.zip | |
[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.h | 28 |
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 |