From: Bobi Jam <bobijam.xu@intel.com>
Date: Sun, 28 Apr 2013 09:11:40 +0000 (+0800)
Subject: LU-3188 osc: shorten IO calling path
X-Git-Tag: 2.3.65~10
X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=commitdiff_plain;h=83ae17df2bdce837e62473aec27c03d67312c8ea;hp=c864582b5d4541c7830d628457e55cd859aee005

LU-3188 osc: shorten IO calling path

By using osc_io_unplug_aync() for osc_queue_sync_pages() to shorten
the IO calling path, to reduce the chance of stack overflow.

Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Change-Id: I06112d9fb7b069d68c7945641e65d6430d0bb380
Reviewed-on: http://review.whamcloud.com/6191
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Keith Mannthey <kemannthey@gmail.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/lustre/osc/osc_cache.c b/lustre/osc/osc_cache.c
index b898d93..e7bfc47 100644
--- a/lustre/osc/osc_cache.c
+++ b/lustre/osc/osc_cache.c
@@ -2668,7 +2668,7 @@ int osc_queue_sync_pages(const struct lu_env *env, struct osc_object *obj,
 	}
 	osc_object_unlock(obj);
 
-	osc_io_unplug(env, cli, obj, PDL_POLICY_ROUND);
+	osc_io_unplug_async(env, cli, obj);
 	RETURN(0);
 }