| commit | 33811026a0a4208dd5725183d37fc92d5e88b0a2 | [log] [tgz] |
|---|---|---|
| author | Robert Elliott <elliott@hp.com> | Fri Jan 23 16:43:41 2015 -0600 |
| committer | James Bottomley <JBottomley@Parallels.com> | Mon Feb 02 09:57:41 2015 -0800 |
| tree | 3ee9c60da0de30a40ea02be9db13b5c75fcb0ea4 | |
| parent | 281a7fd03ea37c979bbba4d8376595c0288e3252 [diff] |
hpsa: optimize cmd_alloc function by remembering last allocation Empirically, this improves performance slightly (~2% max IOPS) by allowing cmd_alloc to remember where it left off searching for free commands between calls instead of always starting its search at command 0. Reviewed-by: Scott Teel <scott.teel@pmcs.com> Signed-off-by: Robert Elliott <elliott@hp.com> Signed-off-by: Don Brace <don.brace@pmcs.com> Signed-off-by: Christoph Hellwig <hch@lst.de>