Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755058Ab1EIVoo (ORCPT ); Mon, 9 May 2011 17:44:44 -0400 Received: from p3plsmtps2ded01.prod.phx3.secureserver.net ([208.109.80.58]:47265 "HELO p3plsmtps2ded01-01.prod.phx3.secureserver.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1751225Ab1EIVom (ORCPT ); Mon, 9 May 2011 17:44:42 -0400 From: "K. Y. Srinivasan" To: gregkh@suse.de, linux-kernel@vger.kernel.org, devel@linuxdriverproject.org, virtualization@lists.osdl.org Cc: "K. Y. Srinivasan" , Haiyang Zhang , Abhishek Kane , Hank Janssen Subject: [PATCH 001/206] Staging: hv: Get rid of blkvsc_mutex Date: Mon, 9 May 2011 14:54:43 -0700 Message-Id: <1304978288-22999-1-git-send-email-kys@microsoft.com> X-Mailer: git-send-email 1.7.4.1 In-Reply-To: <1304978242-22958-1-git-send-email-kys@microsoft.com> References: <1304978242-22958-1-git-send-email-kys@microsoft.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1725 Lines: 56 The blkvsc_mutex is unnecessary as the state it is protecting (blkdev->users) is already protected by the spin lock. Signed-off-by: K. Y. Srinivasan Signed-off-by: Haiyang Zhang Signed-off-by: Abhishek Kane Signed-off-by: Hank Janssen --- drivers/staging/hv/blkvsc_drv.c | 5 ----- 1 files changed, 0 insertions(+), 5 deletions(-) diff --git a/drivers/staging/hv/blkvsc_drv.c b/drivers/staging/hv/blkvsc_drv.c index db44cf6..cfef1c0 100644 --- a/drivers/staging/hv/blkvsc_drv.c +++ b/drivers/staging/hv/blkvsc_drv.c @@ -27,7 +27,6 @@ #include #include #include -#include #include #include #include @@ -113,8 +112,6 @@ struct block_device_context { int users; }; -static DEFINE_MUTEX(blkvsc_mutex); - static const char *g_blk_driver_name = "blkvsc"; /* {32412632-86cb-44a2-9b5c-50d1417354f5} */ @@ -620,7 +617,6 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode) { struct block_device_context *blkdev = disk->private_data; - mutex_lock(&blkvsc_mutex); spin_lock(&blkdev->lock); if (blkdev->users == 1) { spin_unlock(&blkdev->lock); @@ -631,7 +627,6 @@ static int blkvsc_release(struct gendisk *disk, fmode_t mode) blkdev->users--; spin_unlock(&blkdev->lock); - mutex_unlock(&blkvsc_mutex); return 0; } -- 1.7.4.1 -- 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/