From: Giancarlo Formicuccia <giancarlo.formicuccia@gmail.com>
Date: Fri, 9 Sep 2005 20:01:22 +0000 (-0700)
Subject: [PATCH] Clear task_struct->fs_excl on fork()
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=4b5d37ac02954572e80e09255bb5737277aaee8e;p=openwrt%2Fstaging%2Fblogic.git

[PATCH] Clear task_struct->fs_excl on fork()

An oversight.  We don't want to carry the IO scheduler's "we hold exclusive fs
resources" hint over to the child across fork().

Acked-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/kernel/fork.c b/kernel/fork.c
index 7e1ead9a6ba4..dfeadf466f18 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -176,6 +176,7 @@ static struct task_struct *dup_task_struct(struct task_struct *orig)
 
 	/* One for us, one for whoever does the "release_task()" (usually parent) */
 	atomic_set(&tsk->usage,2);
+	atomic_set(&tsk->fs_excl, 0);
 	return tsk;
 }