From: Bobi Jam <bobijam.xu@intel.com>
Date: Mon, 12 May 2014 14:04:23 +0000 (+0800)
Subject: LU-3188 osc: shorten IO calling path
X-Git-Tag: 2.6.0-RC1~77
X-Git-Url: https://git.whamcloud.com/gitweb?a=commitdiff_plain;h=refs%2Fchanges%2F92%2F10292%2F5;p=fs%2Flustre-release.git

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.

This is revive of git commit 83ae17df2bdce837e62473aec27c03d67312c8ea.

Signed-off-by: Bobi Jam <bobijam.xu@intel.com>
Change-Id: I2ac32866f7adbc4701370704612c849a18a5d1ac
Reviewed-on: http://review.whamcloud.com/10292
Tested-by: Jenkins
Tested-by: Maloo <hpdd-maloo@intel.com>
Reviewed-by: Jinshan Xiong <jinshan.xiong@intel.com>
Reviewed-by: Niu Yawei <yawei.niu@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
---

diff --git a/lustre/osc/osc_cache.c b/lustre/osc/osc_cache.c
index 545e0a3..527618a 100644
--- a/lustre/osc/osc_cache.c
+++ b/lustre/osc/osc_cache.c
@@ -2620,7 +2620,7 @@ 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);
 }