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| author | Bill O'Donnell <billodo@redhat.com> | 2015-10-12 10:21:22 +0300 |
|---|---|---|
| committer | Dave Chinner <david@fromorbit.com> | 2015-10-12 10:21:22 +0300 |
| commit | ff6d6af2351caea7db681f4539d0d893e400557a (patch) | |
| tree | 2e3d1d4a57a478183edf6e55a0c257a36a9fee04 /fs/xfs/xfs_stats.h | |
| parent | 225e4635580ce9fb12f8a2dc88473161cd64dbf6 (diff) | |
| download | linux-ff6d6af2351caea7db681f4539d0d893e400557a.tar.xz | |
xfs: per-filesystem stats counter implementation
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>
Diffstat (limited to 'fs/xfs/xfs_stats.h')
| -rw-r--r-- | fs/xfs/xfs_stats.h | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/fs/xfs/xfs_stats.h b/fs/xfs/xfs_stats.h index 54f2260299d1..483b0eff1988 100644 --- a/fs/xfs/xfs_stats.h +++ b/fs/xfs/xfs_stats.h @@ -18,7 +18,6 @@ #ifndef __XFS_STATS_H__ #define __XFS_STATS_H__ -#if defined(CONFIG_PROC_FS) && !defined(XFS_STATS_OFF) #include <linux/percpu.h> @@ -218,14 +217,25 @@ int xfs_stats_format(struct xfsstats __percpu *stats, char *buf); void xfs_stats_clearall(struct xfsstats __percpu *stats); extern struct xstats xfsstats; -#define XFS_STATS_INC(v) \ - (per_cpu_ptr(xfsstats.xs_stats, current_cpu())->v++) +#define XFS_STATS_INC(mp, v) \ +do { \ + per_cpu_ptr(xfsstats.xs_stats, current_cpu())->v++; \ + per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->v++; \ +} while (0) -#define XFS_STATS_DEC(v) \ - (per_cpu_ptr(xfsstats.xs_stats, current_cpu())->v--) +#define XFS_STATS_DEC(mp, v) \ +do { \ + per_cpu_ptr(xfsstats.xs_stats, current_cpu())->v--; \ + per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->v--; \ +} while (0) -#define XFS_STATS_ADD(v, inc) \ - (per_cpu_ptr(xfsstats.xs_stats, current_cpu())->v += (inc)) +#define XFS_STATS_ADD(mp, v, inc) \ +do { \ + per_cpu_ptr(xfsstats.xs_stats, current_cpu())->v += (inc); \ + per_cpu_ptr(mp->m_stats.xs_stats, current_cpu())->v += (inc); \ +} while (0) + +#if defined(CONFIG_PROC_FS) extern int xfs_init_procfs(void); extern void xfs_cleanup_procfs(void); @@ -233,10 +243,6 @@ extern void xfs_cleanup_procfs(void); #else /* !CONFIG_PROC_FS */ -# define XFS_STATS_INC(count) -# define XFS_STATS_DEC(count) -# define XFS_STATS_ADD(count, inc) - static inline int xfs_init_procfs(void) { return 0; |