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List:       linux-block
Subject:    [PATCH V15 17/22] mmc: block: Reduce polling timeout from 10 minutes to 10 seconds
From:       Adrian Hunter <adrian.hunter () intel ! com>
Date:       2017-11-29 13:41:14
Message-ID: 1511962879-24262-18-git-send-email-adrian.hunter () intel ! com
[Download RAW message or body]

Set a 10 second timeout for polling write request busy state. Note, mmc
core is setting a 3 second timeout for SD cards, and SDHCI has long had a
10 second software timer to timeout the whole request, so 10 seconds should
be ample.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
---
 drivers/mmc/core/block.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c
index 46e63aec1fcb..9d323ed34f82 100644
--- a/drivers/mmc/core/block.c
+++ b/drivers/mmc/core/block.c
@@ -63,7 +63,13 @@
 #endif
 #define MODULE_PARAM_PREFIX "mmcblk."
 
-#define MMC_BLK_TIMEOUT_MS  (10 * 60 * 1000)        /* 10 minute timeout */
+/*
+ * Set a 10 second timeout for polling write request busy state. Note, mmc core
+ * is setting a 3 second timeout for SD cards, and SDHCI has long had a 10
+ * second software timer to timeout the whole request, so 10 seconds should be
+ * ample.
+ */
+#define MMC_BLK_TIMEOUT_MS  (10 * 1000)
 #define MMC_SANITIZE_REQ_TIMEOUT 240000
 #define MMC_EXTRACT_INDEX_FROM_ARG(x) ((x & 0x00FF0000) >> 16)
 
-- 
1.9.1

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