diff options
| author | Andrew Morton <akpm@digeo.com> | 2002-10-31 04:10:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2002-10-31 04:10:09 -0800 |
| commit | fd3e620537030db24fd8bc2135b94816dd08c347 (patch) | |
| tree | 1798f75cce190cd952faf78c56376a70c82aaebd /include/linux/blkdev.h | |
| parent | 8f2215c6a1d2120850959e48dd9933fc7b4e5547 (diff) | |
[PATCH] make kernel_stat use per-cpu infrastructure
Patch from Ravikiran G Thirumalai <kiran@in.ibm.com>
1. Break out disk stats from kernel_stat and move disk stat to blkdev.h
2. Group cpu stat in kernel_stat and make them "per_cpu" instead of
the NR_CPUS array
3. Remove EXPORT_SYMBOL(kstat) from ksyms.c (as I noticed that no module is
using kstat)
Diffstat (limited to 'include/linux/blkdev.h')
| -rw-r--r-- | include/linux/blkdev.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index 212e53167f88..e771e183891e 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -11,6 +11,22 @@ #include <asm/scatterlist.h> +/* + * Disk stats ... + */ + +#define DK_MAX_MAJOR 16 +#define DK_MAX_DISK 16 + +struct disk_stat { + unsigned int drive[DK_MAX_MAJOR][DK_MAX_DISK]; + unsigned int drive_rio[DK_MAX_MAJOR][DK_MAX_DISK]; + unsigned int drive_wio[DK_MAX_MAJOR][DK_MAX_DISK]; + unsigned int drive_rblk[DK_MAX_MAJOR][DK_MAX_DISK]; + unsigned int drive_wblk[DK_MAX_MAJOR][DK_MAX_DISK]; +}; +extern struct disk_stat dkstat; + struct request_queue; typedef struct request_queue request_queue_t; struct elevator_s; |