diff options
| author | Adrian Hunter <adrian.hunter@nokia.com> | 2010-08-11 14:17:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-12 08:43:30 -0700 |
| commit | 4980454868af4b2f84f1f15f4b76512eecb37e1d (patch) | |
| tree | c8480c25797558d44f39fdbec2e8a4b22f47c729 /drivers/mmc/card/queue.c | |
| parent | 8d57a98ccd0b4489003473979da8f5a1363ba7a3 (diff) | |
mmc_block: add support for secure discard
Secure discard is implemented by Secure Trim if the discard is unaligned
or Secure Erase otherwise.
Signed-off-by: Adrian Hunter <adrian.hunter@nokia.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: Kyungmin Park <kmpark@infradead.org>
Cc: Madhusudhan Chikkature <madhu.cr@ti.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ben Gardiner <bengardiner@nanometrics.ca>
Cc: <linux-mmc@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/mmc/card/queue.c')
| -rw-r--r-- | drivers/mmc/card/queue.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 3b15884e435..e876678176b 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -141,6 +141,9 @@ int mmc_init_queue(struct mmc_queue *mq, struct mmc_card *card, spinlock_t *lock mq->queue->limits.discard_alignment = card->erase_size << 9; } + if (mmc_can_secure_erase_trim(card)) + queue_flag_set_unlocked(QUEUE_FLAG_SECDISCARD, + mq->queue); } #ifdef CONFIG_MMC_BLOCK_BOUNCE |