AcoSail/kernel_optimize_test
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[PATCH] blk: remove BLK_TAGS_{PER_LONG|MASK}

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Replace BLK_TAGS_PER_LONG with BITS_PER_LONG and remove unused BLK_TAGS_MASK.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Tejun Heo 2005-06-23 00:08:50 -07:00 committed by Linus Torvalds
parent fa72b903f7
commit f7d37d028d
2 changed files with 2 additions and 5 deletions
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4
drivers/block/ll_rw_blk.c
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@ -789,7 +789,7 @@ init_tag_map(request_queue_t *q, struct blk_queue_tag *tags, int depth)
if (!tag_index) if (!tag_index)
goto fail; goto fail;
nr_ulongs = ALIGN(depth, BLK_TAGS_PER_LONG) / BLK_TAGS_PER_LONG; nr_ulongs = ALIGN(depth, BITS_PER_LONG) / BITS_PER_LONG;
tag_map = kmalloc(nr_ulongs * sizeof(unsigned long), GFP_ATOMIC); tag_map = kmalloc(nr_ulongs * sizeof(unsigned long), GFP_ATOMIC);
if (!tag_map) if (!tag_map)
goto fail; goto fail;
@ -880,7 +880,7 @@ int blk_queue_resize_tags(request_queue_t *q, int new_depth)
return -ENOMEM; return -ENOMEM;
memcpy(bqt->tag_index, tag_index, max_depth * sizeof(struct request *)); memcpy(bqt->tag_index, tag_index, max_depth * sizeof(struct request *));
nr_ulongs = ALIGN(max_depth, BLK_TAGS_PER_LONG) / BLK_TAGS_PER_LONG; nr_ulongs = ALIGN(max_depth, BITS_PER_LONG) / BITS_PER_LONG;
memcpy(bqt->tag_map, tag_map, nr_ulongs * sizeof(unsigned long)); memcpy(bqt->tag_map, tag_map, nr_ulongs * sizeof(unsigned long));
kfree(tag_index); kfree(tag_index);

3
include/linux/blkdev.h
View File

@ -285,9 +285,6 @@ enum blk_queue_state {
Queue_up, Queue_up,
}; };
#define BLK_TAGS_PER_LONG (sizeof(unsigned long) * 8)
#define BLK_TAGS_MASK (BLK_TAGS_PER_LONG - 1)
struct blk_queue_tag { struct blk_queue_tag {
struct request **tag_index; /* map of busy tags */ struct request **tag_index; /* map of busy tags */
unsigned long *tag_map; /* bit map of free/busy tags */ unsigned long *tag_map; /* bit map of free/busy tags */