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bcache: remove macro nr_to_fifo_front()

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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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5
drivers/md/bcache/journal.c
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@ -417,8 +417,6 @@ err:
/* Journalling */ /* Journalling */
#define nr_to_fifo_front(p, front_p, mask) (((p) - (front_p)) & (mask))
static void btree_flush_write(struct cache_set *c) static void btree_flush_write(struct cache_set *c)
{ {
struct btree *b, *t, *btree_nodes[BTREE_FLUSH_NR]; struct btree *b, *t, *btree_nodes[BTREE_FLUSH_NR];
@ -510,8 +508,7 @@ static void btree_flush_write(struct cache_set *c)
* journal entry can be reclaimed). These selected nodes * journal entry can be reclaimed). These selected nodes
* will be ignored and skipped in the folowing for-loop. * will be ignored and skipped in the folowing for-loop.
*/ */
if (nr_to_fifo_front(btree_current_write(b)->journal, if (((btree_current_write(b)->journal - fifo_front_p) &
fifo_front_p,
mask) != 0) { mask) != 0) {
mutex_unlock(&b->write_lock); mutex_unlock(&b->write_lock);
continue; continue;