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authorChristoph Hellwig <hch@lst.de>2017-04-05 19:21:19 +0200
committerJens Axboe <axboe@fb.com>2017-04-08 11:25:38 -0600
commit5d1429fead5beacce6df052c31b28a97a11e250b (patch)
tree7943caaa11a09692a59c9285a6d6763e39981caf /drivers
parentrsxx: remove the discard_zeroes_data flag (diff)
downloadlinux-dev-5d1429fead5beacce6df052c31b28a97a11e250b.tar.xz
linux-dev-5d1429fead5beacce6df052c31b28a97a11e250b.zip
mmc: remove the discard_zeroes_data flag
mmc only supports discarding on large alignments, so the zeroing code would always fall back to explicit writings of zeroes. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Hannes Reinecke <hare@suse.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/mmc/core/queue.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index 493eb10ce580..4c54ad34e17a 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -167,8 +167,6 @@ static void mmc_queue_setup_discard(struct request_queue *q,
queue_flag_set_unlocked(QUEUE_FLAG_DISCARD, q);
blk_queue_max_discard_sectors(q, max_discard);
- if (card->erased_byte == 0 && !mmc_can_discard(card))
- q->limits.discard_zeroes_data = 1;
q->limits.discard_granularity = card->pref_erase << 9;
/* granularity must not be greater than max. discard */
if (card->pref_erase > max_discard)