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bcache: remove macro nr_to_fifo_front() 

Macro nr_to_fifo_front() is only used once in btree_flush_write(),
it is unncessary indeed. This patch removes this macro and does
calculation directly in place.

Signed-off-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Coly Li 2020-02-13 22:12:07 +08:00 committed by Jens Axboe
parent 309cc719a2
commit 4ec31cb624
1 changed files with 2 additions and 5 deletions
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7
drivers/md/bcache/journal.c
View File

@ -417,8 +417,6 @@ err:
/* Journalling */
#define nr_to_fifo_front(p, front_p, mask) (((p) - (front_p)) & (mask))
static void btree_flush_write(struct cache_set *c)
{
struct btree *b, *t, *btree_nodes[BTREE_FLUSH_NR];
@ -510,9 +508,8 @@ static void btree_flush_write(struct cache_set *c)
* journal entry can be reclaimed). These selected nodes
* will be ignored and skipped in the folowing for-loop.
*/
if (nr_to_fifo_front(btree_current_write(b)->journal,
fifo_front_p,
mask) != 0) {
if (((btree_current_write(b)->journal - fifo_front_p) &
mask) != 0) {
mutex_unlock(&b->write_lock);
continue;
}