diff options
| author | Tejun Heo <tj@kernel.org> | 2008-08-25 19:56:14 +0900 |
|---|---|---|
| committer | Jens Axboe <jens.axboe@oracle.com> | 2008-10-09 08:56:08 +0200 |
| commit | 074a7aca7afa6f230104e8e65eba3420263714a5 (patch) | |
| tree | f418313e45bd55be8156c8a3e8f9a216cf63058d /fs/partitions | |
| parent | eddb2e26b5ee3c5da68ba4bf1921ba20e2097bff (diff) | |
| download | lwn-074a7aca7afa6f230104e8e65eba3420263714a5.tar.gz lwn-074a7aca7afa6f230104e8e65eba3420263714a5.zip | |
block: move stats from disk to part0
Move stats related fields - stamp, in_flight, dkstats - from disk to
part0 and unify stat handling such that...
* part_stat_*() now updates part0 together if the specified partition
is not part0. ie. part_stat_*() are now essentially all_stat_*().
* {disk|all}_stat_*() are gone.
* part_round_stats() is updated similary. It handles part0 stats
automatically and disk_round_stats() is killed.
* part_{inc|dec}_in_fligh() is implemented which automatically updates
part0 stats for parts other than part0.
* disk_map_sector_rcu() is updated to return part0 if no part matches.
Combined with the above changes, this makes NULL special case
handling in callers unnecessary.
* Separate stats show code paths for disk are collapsed into part
stats show code paths.
* Rename disk_stat_lock/unlock() to part_stat_lock/unlock()
While at it, reposition stat handling macros a bit and add missing
parentheses around macro parameters.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Diffstat (limited to 'fs/partitions')
| -rw-r--r-- | fs/partitions/check.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/partitions/check.c b/fs/partitions/check.c index 60592d9f43b6..f517869e8d10 100644 --- a/fs/partitions/check.c +++ b/fs/partitions/check.c @@ -210,15 +210,15 @@ ssize_t part_size_show(struct device *dev, return sprintf(buf, "%llu\n",(unsigned long long)p->nr_sects); } -static ssize_t part_stat_show(struct device *dev, - struct device_attribute *attr, char *buf) +ssize_t part_stat_show(struct device *dev, + struct device_attribute *attr, char *buf) { struct hd_struct *p = dev_to_part(dev); int cpu; - cpu = disk_stat_lock(); + cpu = part_stat_lock(); part_round_stats(cpu, p); - disk_stat_unlock(); + part_stat_unlock(); return sprintf(buf, "%8lu %8lu %8llu %8u " "%8lu %8lu %8llu %8u " @@ -575,8 +575,8 @@ void del_gendisk(struct gendisk *disk) set_capacity(disk, 0); disk->flags &= ~GENHD_FL_UP; unlink_gendisk(disk); - disk_stat_set_all(disk, 0); - disk->stamp = 0; + part_stat_set_all(&disk->part0, 0); + disk->part0.stamp = 0; kobject_put(disk->part0.holder_dir); kobject_put(disk->slave_dir); |