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| author |   Maya Erez <merez@codeaurora.org> | 2013-04-18 15:41:55 +0300 |
|---|---|---|
| committer |   Chris Ball <cjb@laptop.org> | 2013-05-26 14:23:13 -0400 |
| commit | 775a9362b5d7e006ff6bbec5cb9c9c9d5a751696 (patch) | |
| tree | 78d66b7a04b5e339c2e0faa24290f72eb8f8bae4 /drivers/mmc/card/queue.c | |
| parent | mmc: core: Re-use code for MMC_CAP2_DETECT_ON_ERR in polling mode (diff) | |
| download | linux-dev-775a9362b5d7e006ff6bbec5cb9c9c9d5a751696.tar.xz linux-dev-775a9362b5d7e006ff6bbec5cb9c9c9d5a751696.zip | |
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>
Diffstat (limited to 'drivers/mmc/card/queue.c')
| -rw-r--r-- | drivers/mmc/card/queue.c | 2 |
1 files changed, 1 insertions, 1 deletions
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); } |