On 28/11/11 15:32, Sujit Reddy Thumma wrote:
>
>> Add a function mmc_detect_card_removed() which upper layers
>> can use to determine immediately if a card has been removed.
>> This function should be called after an I/O request fails so
>> that all queued I/O requests can be errored out immediately
>> instead of waiting for the card device to be removed.
>>
>> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
>> ---
>> drivers/mmc/core/core.c | 51
>> +++++++++++++++++++++++++++++++++++++++++++--
>> drivers/mmc/core/core.h | 3 ++
>> drivers/mmc/core/mmc.c | 12 ++++++++++-
>> drivers/mmc/core/sd.c | 12 ++++++++++-
>> drivers/mmc/core/sdio.c | 11 +++++++++-
>> include/linux/mmc/card.h | 3 ++
>> include/linux/mmc/core.h | 2 +
>> include/linux/mmc/host.h | 1 +
>> 8 files changed, 89 insertions(+), 6 deletions(-)
>>
> ...
>
>> +int _mmc_detect_card_removed(struct mmc_host *host)
>> +{
>> + int ret;
>> +
>> + if (!(host->caps & MMC_CAP_NONREMOVABLE) || !host->bus_ops->alive)
>
> This should be just "if ((host->caps & MMC_CAP_NONREMOVABLE) || ...)"
>
> Otherwise, Acked-by: Sujit Reddy Thumma <sthumma@xxxxxxxxxxxxxx>
Fixed in V4
>
>> + return 0;
>> +
>> + if (!host->card || mmc_card_removed(host->card))
>> + return 1;
>> +
>> + ret = host->bus_ops->alive(host);
>> + if (ret) {
>> + mmc_card_set_removed(host->card);
>> + pr_info("%s: card removed\n", mmc_hostname(host));
>> + }
>> +
>> + return ret;
>> +}
>> +
>
>
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