linux-kernel - [PATCH 08/26] mmc: panic write: bypass request completion

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Message-Id: <1351000104-13015-9-git-send-email-irina.tirdea@intel.com>
Date:	Tue, 23 Oct 2012 16:48:06 +0300
From:	Irina Tirdea <irina.tirdea@...el.com>
To:	Anton Vorontsov <cbouatmailru@...il.com>,
	Colin Cross <ccross@...roid.com>,
	Kees Cook <keescook@...omium.org>,
	Tony Luck <tony.luck@...el.com>, Chris Ball <cjb@...top.org>
Cc:	linux-kernel@...r.kernel.org,
	Adrian Hunter <adrian.hunter@...el.com>,
	Octavian Purdila <octavian.purdila@...el.com>,
	Irina Tirdea <irina.tirdea@...el.com>
Subject: [PATCH 08/26] mmc: panic write: bypass request completion

From: Adrian Hunter <adrian.hunter@...el.com>

Signed-off-by: Adrian Hunter <adrian.hunter@...el.com>
Signed-off-by: Irina Tirdea <irina.tirdea@...el.com>
---
 drivers/mmc/core/core.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index dbe5332..6b2377a 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -148,6 +148,9 @@ void mmc_request_done(struct mmc_host *host, struct mmc_request *mrq)
 			cmd->retries = 0;
 	}
 
+	if (mmc_am_panic_task(host))
+		return;
+
 	if (err && cmd->retries && !mmc_card_removed(host->card)) {
 		/*
 		 * Request starter must handle retries - see
@@ -340,7 +343,9 @@ static void mmc_wait_for_req_done(struct mmc_host *host,
 	struct mmc_command *cmd;
 
 	while (1) {
-		wait_for_completion(&mrq->completion);
+		/* Panic task requests must be completed in ->request() */
+		if (!mmc_am_panic_task(host))
+			wait_for_completion(&mrq->completion);
 
 		cmd = mrq->cmd;
 		if (!cmd->error || !cmd->retries ||
-- 
1.7.9.5

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