From mboxrd@z Thu Jan 1 00:00:00 1970 From: Shaohua Li Subject: [PATCH 9/9] raid5: skip resync if cache(log) is enabled Date: Wed, 29 Jul 2015 17:38:49 -0700 Message-ID: <406d69eccd47d2eb57fca57bbafb9871e0858dcf.1438215986.git.shli@fb.com> References: Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org Cc: Kernel-team@fb.com, songliubraving@fb.com, hch@infradead.org, dan.j.williams@intel.com, neilb@suse.de List-Id: linux-raid.ids If cache(log) is enabled, the log structure will guarantee data consistency, so skip resync for unclean shutdown Signed-off-by: Shaohua Li --- drivers/md/raid5.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 26ea100..330550a 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -6967,6 +6967,15 @@ static int run(struct mddev *mddev) } } + if (conf->log) { + if (mddev->recovery_cp == 0) { + printk(KERN_NOTICE + "md/raid:%s: skip resync with caching enabled\n", + mdname(mddev)); + mddev->recovery_cp = MaxSector; + } + } + return 0; abort: md_unregister_thread(&mddev->thread); -- 1.8.5.6