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| author | Ulf Hansson <ulf.hansson@stericsson.com> | 2012-02-06 10:42:39 +0100 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2012-03-27 12:19:58 -0400 |
| commit | f0cc9cf99326926fd76f77645c48d16d647802eb (patch) | |
| tree | 62ad1c9e51cb27c797acaa5481d93a4306125bcd /include/linux/mmc | |
| parent | 885c3e800cf99db3391247776bfa2d262b21a72b (diff) | |
| download | blackbird-op-linux-f0cc9cf99326926fd76f77645c48d16d647802eb.tar.gz blackbird-op-linux-f0cc9cf99326926fd76f77645c48d16d647802eb.zip | |
mmc: core: Detect card removal on I/O error
To prevent I/O as soon as possible at card removal, a new detect work is
re-scheduled without a delay to let a rescan remove the card device as
soon as possible.
Additionally, MMC_CAP2_DETECT_ON_ERR can now be used to handle "slowly"
removed cards that a scheduled detect work did not detect as removed.
To prevent further I/O requests for these lingering removed cards,
check if card has been removed and then schedule a detect work to
properly remove it.
Signed-off-by: Ulf Hansson <ulf.hansson@stericsson.com>
Reviewed-by: Namjae Jeon <linkinjeon@gmail.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/host.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index ee2b0363c040..d1d3743fde90 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -258,6 +258,7 @@ struct mmc_host { #define MMC_CAP2_HS200 (MMC_CAP2_HS200_1_8V_SDR | \ MMC_CAP2_HS200_1_2V_SDR) #define MMC_CAP2_BROKEN_VOLTAGE (1 << 7) /* Use the broken voltage */ +#define MMC_CAP2_DETECT_ON_ERR (1 << 8) /* On I/O err check card removal */ mmc_pm_flag_t pm_caps; /* supported pm features */ unsigned int power_notify_type; |
