linux-kernel - [PATCH 22/26] staging/lustre/osc: osc_extent

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Message-Id: <1384447393-13838-23-git-send-email-bergwolf@gmail.com>
Date:	Fri, 15 Nov 2013 00:43:09 +0800
From:	Peng Tao <bergwolf@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:	linux-kernel@...r.kernel.org,
	Jinshan Xiong <jinshan.xiong@...el.com>,
	Peng Tao <bergwolf@...il.com>,
	Andreas Dilger <andreas.dilger@...el.com>
Subject: [PATCH 22/26] staging/lustre/osc: osc_extent_wait() shouldn't be interruptible

From: Jinshan Xiong <jinshan.xiong@...el.com>

Otherwise it will hit the assertion at cl_lock.c:

   cl_lock.c:1967:discard_cb())
        ASSERTION( (!(page->cp_type == CPT_CACHEABLE) ||
        (!PageWriteback(cl_page_vmpage(env, page)))) ) failed:

This is because in osc_lock_flush() we have to make sure the IO
is finished before discarding the pages.

Lustre-change: http://review.whamcloud.com/5419
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-2779
Signed-off-by: Jinshan Xiong <jinshan.xiong@...el.com>
Reviewed-by: Bobi Jam <bobijam@...il.com>
Reviewed-by: Oleg Drokin <oleg.drokin@...el.com>
Signed-off-by: Peng Tao <bergwolf@...il.com>
Signed-off-by: Andreas Dilger <andreas.dilger@...el.com>
---
 drivers/staging/lustre/lustre/osc/osc_cache.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/lustre/lustre/osc/osc_cache.c b/drivers/staging/lustre/lustre/osc/osc_cache.c
index ff36e77..6051e41 100644
--- a/drivers/staging/lustre/lustre/osc/osc_cache.c
+++ b/drivers/staging/lustre/lustre/osc/osc_cache.c
@@ -891,7 +891,7 @@ static int osc_extent_wait(const struct lu_env *env, struct osc_extent *ext,
 			"%s: wait ext to %d timedout, recovery in progress?\n",
 			osc_export(obj)->exp_obd->obd_name, state);
 
-		lwi = LWI_INTR(LWI_ON_SIGNAL_NOOP, NULL);
+		lwi = LWI_INTR(NULL, NULL);
 		rc = l_wait_event(ext->oe_waitq, extent_wait_cb(ext, state),
 				  &lwi);
 	}
-- 
1.7.9.5

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