From: Mike Galbraith <efault@gmx.de>
Date: Fri, 8 Feb 2008 12:20:23 +0000 (-0800)
Subject: write_inode_now(): avoid unnecessary synchronous write
X-Git-Tag: v2.6.25-rc1~157
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=18914b1884ebdbcd4d4454100502a23d1d2dba43;p=linux-2.6

write_inode_now(): avoid unnecessary synchronous write

We shouldn't use WB_SYNC_ALL if the caller is asking for asynchronous
treatment.

Signed-off-by: Mike Galbraith <efault@gmx.de>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index db80ce9eb1..c0076077d3 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -655,7 +655,7 @@ int write_inode_now(struct inode *inode, int sync)
 	int ret;
 	struct writeback_control wbc = {
 		.nr_to_write = LONG_MAX,
-		.sync_mode = WB_SYNC_ALL,
+		.sync_mode = sync ? WB_SYNC_ALL : WB_SYNC_NONE,
 		.range_start = 0,
 		.range_end = LLONG_MAX,
 	};