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mmc: Reliable write support.

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Allows reliable writes to be used for MMC writes. Reliable writes are used
to service write REQ_FUA/REQ_META requests. Handles both the legacy and
the enhanced reliable write support in MMC cards.

Signed-off-by: Andrei Warkentin <andreiw@motorola.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Andrei Warkentin
2011-03-31 18:40:00 -05:00
committed by Chris Ball
parent 766a6bf6e9
commit f4c5522b0a
4 changed files with 88 additions and 4 deletions
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2
include/linux/mmc/card.h
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@@ -45,6 +45,8 @@ struct mmc_ext_csd {
u8 rev;
u8 erase_group_def;
u8 sec_feature_support;
u8 rel_sectors;
u8 rel_param;
u8 bootconfig;
unsigned int sa_timeout; /* Units: 100ns */
unsigned int hs_max_dtr;