diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2017-03-13 14:36:36 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-04-24 21:42:01 +0200 |
| commit | 7b410d074b253a44624497a18e73f666a9574f37 (patch) | |
| tree | 50c8855b01206c4843e6d088acadca59f0ce2657 /drivers/mmc/core/queue.h | |
| parent | cdf8a6fb48882651049e468e6b16956fb83db86c (diff) | |
mmc: queue: Share mmc request array between partitions
eMMC can have multiple internal partitions that are represented as separate
disks / queues. However switching between partitions is only done when the
queue is empty. Consequently the array of mmc requests that are queued can
be shared between partitions saving memory.
Keep a pointer to the mmc request queue on the card, and use that instead
of allocating a new one for each partition.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/queue.h')
| -rw-r--r-- | drivers/mmc/core/queue.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/mmc/core/queue.h b/drivers/mmc/core/queue.h index 967808df45b8..871796c3f406 100644 --- a/drivers/mmc/core/queue.h +++ b/drivers/mmc/core/queue.h @@ -51,6 +51,8 @@ struct mmc_queue { unsigned long qslots; }; +extern int mmc_queue_alloc_shared_queue(struct mmc_card *card); +extern void mmc_queue_free_shared_queue(struct mmc_card *card); extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *, const char *); extern void mmc_cleanup_queue(struct mmc_queue *); |