Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933149Ab2JWNxv (ORCPT ); Tue, 23 Oct 2012 09:53:51 -0400 Received: from mga01.intel.com ([192.55.52.88]:44658 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757140Ab2JWNxr (ORCPT ); Tue, 23 Oct 2012 09:53:47 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="4.80,635,1344236400"; d="scan'208";a="237191105" From: Irina Tirdea To: Anton Vorontsov , Colin Cross , Kees Cook , Tony Luck , Chris Ball Cc: linux-kernel@vger.kernel.org, Adrian Hunter , Octavian Purdila , Irina Tirdea Subject: [PATCH 14/26] mmc: panic write: bypass bus ref locking Date: Tue, 23 Oct 2012 16:48:12 +0300 Message-Id: <1351000104-13015-15-git-send-email-irina.tirdea@intel.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1351000104-13015-1-git-send-email-irina.tirdea@intel.com> References: <1351000104-13015-1-git-send-email-irina.tirdea@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1214 Lines: 44 From: Adrian Hunter Signed-off-by: Adrian Hunter Signed-off-by: Irina Tirdea --- drivers/mmc/core/core.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c index 4fd7061..3daec19 100644 --- a/drivers/mmc/core/core.c +++ b/drivers/mmc/core/core.c @@ -1418,6 +1418,11 @@ static inline void mmc_bus_get(struct mmc_host *host) { unsigned long flags; + if (mmc_am_panic_task(host)) { + host->bus_refs++; + return; + } + spin_lock_irqsave(&host->lock, flags); host->bus_refs++; spin_unlock_irqrestore(&host->lock, flags); @@ -1431,6 +1436,11 @@ static inline void mmc_bus_put(struct mmc_host *host) { unsigned long flags; + if (mmc_am_panic_task(host)) { + host->bus_refs--; + return; + } + spin_lock_irqsave(&host->lock, flags); host->bus_refs--; if ((host->bus_refs == 0) && host->bus_ops) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/