From 8030d34397e066deecb5ee9d17387fa767b12de2 Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Wed, 3 Jul 2013 15:09:05 -0700 Subject: aoe: perform I/O completions in parallel Some users have a large AoE target while others like to use many AoE targets at the same time. In the latter case, there is an opportunity to greatly improve aggregate throughput by allowing different threads to complete the I/O associated with each target. For 36 targets, 4 KiB read throughput roughly doubles, for example, with these changes in place. Signed-off-by: Ed Cashin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/aoe/aoe.h | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) (limited to 'drivers/block/aoe/aoe.h') diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h index 175649468c95..c9698529df51 100644 --- a/drivers/block/aoe/aoe.h +++ b/drivers/block/aoe/aoe.h @@ -196,9 +196,11 @@ struct ktstate { struct completion rendez; struct task_struct *task; wait_queue_head_t *waitq; - int (*fn) (void); - char *name; + int (*fn) (int); + char name[12]; spinlock_t *lock; + int id; + int active; }; int aoeblk_init(void); @@ -222,6 +224,7 @@ int aoecmd_init(void); struct sk_buff *aoecmd_ata_id(struct aoedev *); void aoe_freetframe(struct frame *); void aoe_flush_iocq(void); +void aoe_flush_iocq_by_index(int); void aoe_end_request(struct aoedev *, struct request *, int); int aoe_ktstart(struct ktstate *k); void aoe_ktstop(struct ktstate *k); -- cgit v1.2.3 From ca47bbd93c1cc75b9b2736b0ac49129718f32342 Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Wed, 3 Jul 2013 15:09:06 -0700 Subject: aoe: update copyright date Signed-off-by: Ed Cashin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/aoe/aoe.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/block/aoe/aoe.h') diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h index c9698529df51..2284f892c0bc 100644 --- a/drivers/block/aoe/aoe.h +++ b/drivers/block/aoe/aoe.h @@ -1,4 +1,4 @@ -/* Copyright (c) 2012 Coraid, Inc. See COPYING for GPL terms. */ +/* Copyright (c) 2013 Coraid, Inc. See COPYING for GPL terms. */ #define VERSION "81" #define AOE_MAJOR 152 #define DEVICE_NAME "aoe" -- cgit v1.2.3 From 94ac11833fc46fcde6eec7d97893a44c7673967b Mon Sep 17 00:00:00 2001 From: Ed Cashin Date: Wed, 3 Jul 2013 15:09:07 -0700 Subject: aoe: update internal version number to v83 Signed-off-by: Ed Cashin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/block/aoe/aoe.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/block/aoe/aoe.h') diff --git a/drivers/block/aoe/aoe.h b/drivers/block/aoe/aoe.h index 2284f892c0bc..025c41d3cb33 100644 --- a/drivers/block/aoe/aoe.h +++ b/drivers/block/aoe/aoe.h @@ -1,5 +1,5 @@ /* Copyright (c) 2013 Coraid, Inc. See COPYING for GPL terms. */ -#define VERSION "81" +#define VERSION "83" #define AOE_MAJOR 152 #define DEVICE_NAME "aoe" -- cgit v1.2.3