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authorWenchao Chen <[email protected]>2023-09-19 07:47:06 +0000
committerUlf Hansson <[email protected]>2023-09-27 10:13:18 +0000
commit2e2b547950bc09e75afe912f9683be39c2195d9d (patch)
tree600a579f8116798ff629ef4cee8f54118b794503 /drivers/mmc/core/queue.c
parentmmc: sdhci-pci-gli: A workaround to allow GL9750 to enter ASPM L1.2 (diff)
downloadkernel-2e2b547950bc09e75afe912f9683be39c2195d9d.tar.gz
kernel-2e2b547950bc09e75afe912f9683be39c2195d9d.zip
mmc: core: Allow dynamical updates of the number of requests for hsq
To allow dynamical updates of the current number of used in-flight requests, let's move away from using a hard-coded value to a use a corresponding variable in the struct mmc_host. This can be valuable when optimizing for certain I/O request sequences, as shown by subsequent changes. Signed-off-by: Wenchao Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] [Ulf: Re-wrote the commitmsg to clarify the change] Signed-off-by: Ulf Hansson <[email protected]>
Diffstat (limited to 'drivers/mmc/core/queue.c')
-rw-r--r--drivers/mmc/core/queue.c6
1 files changed, 1 insertions, 5 deletions
diff --git a/drivers/mmc/core/queue.c b/drivers/mmc/core/queue.c
index b396e3900717..a0a2412f62a7 100644
--- a/drivers/mmc/core/queue.c
+++ b/drivers/mmc/core/queue.c
@@ -260,11 +260,7 @@ static blk_status_t mmc_mq_queue_rq(struct blk_mq_hw_ctx *hctx,
}
break;
case MMC_ISSUE_ASYNC:
- /*
- * For MMC host software queue, we only allow 2 requests in
- * flight to avoid a long latency.
- */
- if (host->hsq_enabled && mq->in_flight[issue_type] > 2) {
+ if (host->hsq_enabled && mq->in_flight[issue_type] > host->hsq_depth) {
spin_unlock_irq(&mq->lock);
return BLK_STS_RESOURCE;
}