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Commit cb39f61e authored by Adrian Hunter's avatar Adrian Hunter Committed by Ulf Hansson
Browse files

mmc: core: Export a few functions needed for blkmq support 



The following functions are needed by the mmc block device driver, once it
converts to blkmq, therefore let's export them.

mmc_start_bkops()
mmc_start_request()
mmc_retune_hold_now()
mmc_retune_release()

Signed-off-by: default avatarAdrian Hunter <adrian.hunter@intel.com>
Reviewed-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 27d70d36

drivers/mmc/core/core.c

+2 −1
Original line number Diff line number Diff line
@@ -337,7 +337,7 @@ static int mmc_mrq_prep(struct mmc_host *host, struct mmc_request *mrq) 
	return 0;

}



static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)

int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq)

{

	int err;
@@ -359,6 +359,7 @@ static int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq) 


	return 0;

}

EXPORT_SYMBOL(mmc_start_request);



/*

 * mmc_wait_data_done() - done callback for data request

drivers/mmc/core/core.h

+2 −0
Original line number Diff line number Diff line
@@ -107,6 +107,8 @@ static inline void mmc_unregister_pm_notifier(struct mmc_host *host) { } 
void mmc_wait_for_req_done(struct mmc_host *host, struct mmc_request *mrq);

bool mmc_is_req_done(struct mmc_host *host, struct mmc_request *mrq);



int mmc_start_request(struct mmc_host *host, struct mmc_request *mrq);



struct mmc_async_req;



struct mmc_async_req *mmc_start_areq(struct mmc_host *host,

drivers/mmc/core/host.c

+1 −6
Original line number Diff line number Diff line
@@ -111,12 +111,6 @@ void mmc_retune_hold(struct mmc_host *host) 
	host->hold_retune += 1;

}



void mmc_retune_hold_now(struct mmc_host *host)

{

	host->retune_now = 0;

	host->hold_retune += 1;

}



void mmc_retune_release(struct mmc_host *host)

{

	if (host->hold_retune)
@@ -124,6 +118,7 @@ void mmc_retune_release(struct mmc_host *host) 
	else

		WARN_ON(1);

}

EXPORT_SYMBOL(mmc_retune_release);



int mmc_retune(struct mmc_host *host)

{

drivers/mmc/core/host.h

+6 −1
Original line number Diff line number Diff line
@@ -19,12 +19,17 @@ void mmc_unregister_host_class(void); 
void mmc_retune_enable(struct mmc_host *host);

void mmc_retune_disable(struct mmc_host *host);

void mmc_retune_hold(struct mmc_host *host);

void mmc_retune_hold_now(struct mmc_host *host);

void mmc_retune_release(struct mmc_host *host);

int mmc_retune(struct mmc_host *host);

void mmc_retune_pause(struct mmc_host *host);

void mmc_retune_unpause(struct mmc_host *host);



static inline void mmc_retune_hold_now(struct mmc_host *host)

{

	host->retune_now = 0;

	host->hold_retune += 1;

}



static inline void mmc_retune_recheck(struct mmc_host *host)

{

	if (host->hold_retune <= 1)

drivers/mmc/core/mmc_ops.c

+1 −0
Original line number Diff line number Diff line
@@ -1007,6 +1007,7 @@ void mmc_start_bkops(struct mmc_card *card, bool from_exception) 
	else

		mmc_retune_release(card->host);

}

EXPORT_SYMBOL(mmc_start_bkops);



/*

 * Flush the cache to the non-volatile storage.