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blk-mq: move the cache friendly bitmap type of out blk-mq-tag

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We will use it for the pending list in blk-mq core as well.

Signed-off-by: Jens Axboe <axboe@fb.com>
This commit is contained in:
Jens Axboe
2014-05-19 09:17:48 -06:00
parent 2667bcbbd5
commit e93ecf602b
3 changed files with 17 additions and 11 deletions
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block/blk-mq-tag.c
+5 -5
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@@ -21,7 +21,7 @@ static bool bt_has_free_tags(struct blk_mq_bitmap_tags *bt)
int i;
for (i = 0; i < bt->map_nr; i++) {
struct blk_mq_bitmap *bm = &bt->map[i];
struct blk_align_bitmap *bm = &bt->map[i];
int ret;
ret = find_first_zero_bit(&bm->word, bm->depth);
@@ -40,7 +40,7 @@ bool blk_mq_has_free_tags(struct blk_mq_tags *tags)
return bt_has_free_tags(&tags->bitmap_tags);
}
static int __bt_get_word(struct blk_mq_bitmap *bm, unsigned int last_tag)
static int __bt_get_word(struct blk_align_bitmap *bm, unsigned int last_tag)
{
int tag, org_last_tag, end;
@@ -283,7 +283,7 @@ static void bt_for_each_free(struct blk_mq_bitmap_tags *bt,
int i;
for (i = 0; i < bt->map_nr; i++) {
struct blk_mq_bitmap *bm = &bt->map[i];
struct blk_align_bitmap *bm = &bt->map[i];
int bit = 0;
do {
@@ -323,7 +323,7 @@ static unsigned int bt_unused_tags(struct blk_mq_bitmap_tags *bt)
unsigned int i, used;
for (i = 0, used = 0; i < bt->map_nr; i++) {
struct blk_mq_bitmap *bm = &bt->map[i];
struct blk_align_bitmap *bm = &bt->map[i];
used += bitmap_weight(&bm->word, bm->depth);
}
@@ -361,7 +361,7 @@ static int bt_alloc(struct blk_mq_bitmap_tags *bt, unsigned int depth,
}
nr = ALIGN(depth, tags_per_word) / tags_per_word;
bt->map = kzalloc_node(nr * sizeof(struct blk_mq_bitmap),
bt->map = kzalloc_node(nr * sizeof(struct blk_align_bitmap),
GFP_KERNEL, node);
if (!bt->map)
return -ENOMEM;