path: root/block
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authorJun'ichi "Nick" Nomura <>2006-02-01 03:04:53 -0800
committerLinus Torvalds <>2006-02-01 08:53:11 -0800
commit3eaf840e0b0046f56602c524c7ba58a82f5526c5 (patch)
treede525d358029dd1744aa2570fe8b8f8add5f8dd1 /block
parent12f03a49cf0ab5e8511911142d28699499a572c4 (diff)
[PATCH] device-mapper disk statistics: timing
Record I/O timing statistics The start time is added to struct dm_io, an existing structure allocated privately internally within dm and attached to each incoming bio. We export disk_round_stats() from block/ll_rw_blk.c instead of creating a private clone. Signed-off-by: Jun'ichi "Nick" Nomura <> Signed-off-by: Alasdair G Kergon <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'block')
1 files changed, 2 insertions, 0 deletions
diff --git a/block/ll_rw_blk.c b/block/ll_rw_blk.c
index d38b4afa37ef..f9fc07efd2da 100644
--- a/block/ll_rw_blk.c
+++ b/block/ll_rw_blk.c
@@ -2579,6 +2579,8 @@ void disk_round_stats(struct gendisk *disk)
disk->stamp = now;
* queue lock must be held