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xfs: per-filesystem stats counter implementation

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This patch modifies the stats counting macros and the callers
to those macros to properly increment, decrement, and add-to
the xfs stats counts. The counts for global and per-fs stats
are correctly advanced, and cleared by writing a "1" to the
corresponding clear file.

global counts: /sys/fs/xfs/stats/stats
per-fs counts: /sys/fs/xfs/sda*/stats/stats

global clear:  /sys/fs/xfs/stats/stats_clear
per-fs clear:  /sys/fs/xfs/sda*/stats/stats_clear

[dchinner: cleaned up macro variables, removed CONFIG_FS_PROC around
 stats structures and macros. ]

Signed-off-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Bill O'Donnell
2015-10-12 18:21:22 +11:00
committed by Dave Chinner
parent 225e463558
commit ff6d6af235
21 changed files with 131 additions and 118 deletions
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39
fs/xfs/libxfs/xfs_btree.h
View File

@@ -84,31 +84,38 @@ union xfs_btree_rec {
/*
* Generic stats interface
*/
#define __XFS_BTREE_STATS_INC(type, stat) \
XFS_STATS_INC(xs_ ## type ## _2_ ## stat)
#define XFS_BTREE_STATS_INC(cur, stat) \
#define __XFS_BTREE_STATS_INC(mp, type, stat) \
XFS_STATS_INC(mp, xs_ ## type ## _2_ ## stat)
#define XFS_BTREE_STATS_INC(cur, stat) \
do { \
struct xfs_mount *__mp = cur->bc_mp; \
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_FINO: __XFS_BTREE_STATS_INC(fibt, stat); break; \
case XFS_BTNUM_BNO: __XFS_BTREE_STATS_INC(__mp, abtb, stat); break; \
case XFS_BTNUM_CNT: __XFS_BTREE_STATS_INC(__mp, abtc, stat); break; \
case XFS_BTNUM_BMAP: __XFS_BTREE_STATS_INC(__mp, bmbt, stat); break; \
case XFS_BTNUM_INO: __XFS_BTREE_STATS_INC(__mp, ibt, stat); break; \
case XFS_BTNUM_FINO: __XFS_BTREE_STATS_INC(__mp, fibt, 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(mp, type, stat, val) \
XFS_STATS_ADD(mp, xs_ ## type ## _2_ ## stat, val)
#define XFS_BTREE_STATS_ADD(cur, stat, val) \
do { \
struct xfs_mount *__mp = cur->bc_mp; \
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_FINO: __XFS_BTREE_STATS_ADD(fibt, stat, val); break; \
case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \
case XFS_BTNUM_BNO: \
__XFS_BTREE_STATS_ADD(__mp, abtb, stat, val); break; \
case XFS_BTNUM_CNT: \
__XFS_BTREE_STATS_ADD(__mp, abtc, stat, val); break; \
case XFS_BTNUM_BMAP: \
__XFS_BTREE_STATS_ADD(__mp, bmbt, stat, val); break; \
case XFS_BTNUM_INO: \
__XFS_BTREE_STATS_ADD(__mp, ibt, stat, val); break; \
case XFS_BTNUM_FINO: \
__XFS_BTREE_STATS_ADD(__mp, fibt, stat, val); break; \
case XFS_BTNUM_MAX: ASSERT(0); /* fucking gcc */ ; break; \
} \
} while (0)