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md/raid5: use bdev_write_cache instead of open coding it 

Use the bdev_write_cache instead of two equivalent open coded checks.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Song Liu <song@kernel.org>
This commit is contained in:
Christoph Hellwig 2022-11-09 11:10:37 +01:00 committed by Song Liu
parent 341097ee53
commit ad831a16b0
2 changed files with 2 additions and 8 deletions
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5
drivers/md/raid5-cache.c
View File

@ -3062,7 +3062,6 @@ void r5c_update_on_rdev_error(struct mddev *mddev, struct md_rdev *rdev)
int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev)
{
struct request_queue *q = bdev_get_queue(rdev->bdev);
struct r5l_log *log;
int ret;
@ -3091,9 +3090,7 @@ int r5l_init_log(struct r5conf *conf, struct md_rdev *rdev)
if (!log)
return -ENOMEM;
log->rdev = rdev;
log->need_cache_flush = test_bit(QUEUE_FLAG_WC, &q->queue_flags) != 0;
log->need_cache_flush = bdev_write_cache(rdev->bdev);
log->uuid_checksum = crc32c_le(~0, rdev->mddev->uuid,
sizeof(rdev->mddev->uuid));

5
drivers/md/raid5-ppl.c
View File

@ -1301,8 +1301,6 @@ static int ppl_validate_rdev(struct md_rdev *rdev)
static void ppl_init_child_log(struct ppl_log *log, struct md_rdev *rdev)
{
struct request_queue *q;
if ((rdev->ppl.size << 9) >= (PPL_SPACE_SIZE +
PPL_HEADER_SIZE) * 2) {
log->use_multippl = true;
@ -1316,8 +1314,7 @@ static void ppl_init_child_log(struct ppl_log *log, struct md_rdev *rdev)
}
log->next_io_sector = rdev->ppl.sector;
q = bdev_get_queue(rdev->bdev);
if (test_bit(QUEUE_FLAG_WC, &q->queue_flags))
if (bdev_write_cache(rdev->bdev))
log->wb_cache_on = true;
}