From 775a9362b5d7e006ff6bbec5cb9c9c9d5a751696 Mon Sep 17 00:00:00 2001 From: Maya Erez <merez@codeaurora.org> Date: Thu, 18 Apr 2013 15:41:55 +0300 Subject: mmc: card: Adding support for sanitize in eMMC 4.5 The sanitize support is added as a user-app ioctl call, and was removed from the block-device request, since its purpose is to be invoked not via File-System but by a user. This feature deletes the unmap memory region of the eMMC card, by writing to a specific register in the EXT_CSD. unmap region is the memory region that was previously deleted (by erase, trim or discard operation). In order to avoid timeout when sanitizing large-scale cards, the timeout for sanitize operation is 240 seconds. Signed-off-by: Yaniv Gardi <ygardi@codeaurora.org> Signed-off-by: Maya Erez <merez@codeaurora.org> Signed-off-by: Chris Ball <cjb@laptop.org> --- drivers/mmc/card/queue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/mmc/card/queue.c') diff --git a/drivers/mmc/card/queue.c b/drivers/mmc/card/queue.c index 9447a0e970d1..fa9632eb63f1 100644 --- a/drivers/mmc/card/queue.c +++ b/drivers/mmc/card/queue.c @@ -173,7 +173,7 @@ static void mmc_queue_setup_discard(struct request_queue *q, /* granularity must not be greater than max. discard */ if (card->pref_erase > max_discard) q->limits.discard_granularity = 0; - if (mmc_can_secure_erase_trim(card) || mmc_can_sanitize(card)) + if (mmc_can_secure_erase_trim(card)) queue_flag_set_unlocked(QUEUE_FLAG_SECDISCARD, q); } -- cgit v1.2.3-70-g09d2