diff options
| author | Tejun Heo <tj@kernel.org> | 2009-04-17 08:34:48 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2009-05-08 15:45:00 -0700 |
| commit | 28cb1f4a210dd7ef5e58b1b39aa95d59116f69cd (patch) | |
| tree | c945da1038506b3e94369985b856359e213add68 /include | |
| parent | dfc731fb384e760651b97a34b7d443ac213aaa82 (diff) | |
block: include empty disks in /proc/diskstats
commit 71982a409f12c50d011325a4471aa20666bb908d upstream.
/proc/diskstats used to show stats for all disks whether they're
zero-sized or not and their non-zero partitions. Commit
074a7aca7afa6f230104e8e65eba3420263714a5 accidentally changed the
behavior such that it doesn't print out zero sized disks. This patch
implements DISK_PITER_INCL_EMPTY_PART0 flag to partition iterator and
uses it in diskstats_show() such that empty part0 is shown in
/proc/diskstats.
Reported and bisectd by Dianel Collins.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Daniel Collins <solemnwarning@solemnwarning.no-ip.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/genhd.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/genhd.h b/include/linux/genhd.h index 16948eaecae..102d9e94b1f 100644 --- a/include/linux/genhd.h +++ b/include/linux/genhd.h @@ -214,6 +214,7 @@ static inline void disk_put_part(struct hd_struct *part) #define DISK_PITER_REVERSE (1 << 0) /* iterate in the reverse direction */ #define DISK_PITER_INCL_EMPTY (1 << 1) /* include 0-sized parts */ #define DISK_PITER_INCL_PART0 (1 << 2) /* include partition 0 */ +#define DISK_PITER_INCL_EMPTY_PART0 (1 << 3) /* include empty partition 0 */ struct disk_part_iter { struct gendisk *disk; |