From: Paul E. McKenney <paulmck@linux.ibm.com>
Date: Tue, 6 Nov 2018 01:31:31 +0000 (-0800)
Subject: fs/file: Replace synchronize_sched() with synchronize_rcu()
X-Git-Tag: v5.0-rc1~152^2^2~17^2~22
X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=c93ffc15cceb057924410f9178e679120ee12353;p=linux.git

fs/file: Replace synchronize_sched() with synchronize_rcu()

Now that synchronize_rcu() waits for preempt-disable regions of code
as well as RCU read-side critical sections, synchronize_sched() can be
replaced by synchronize_rcu().  This commit therefore makes this change.

Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: <linux-fsdevel@vger.kernel.org>
---

diff --git a/fs/file.c b/fs/file.c
index 7ffd6e9d103d..50304c7525ea 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -158,7 +158,7 @@ static int expand_fdtable(struct files_struct *files, unsigned int nr)
 	 * or have finished their rcu_read_lock_sched() section.
 	 */
 	if (atomic_read(&files->count) > 1)
-		synchronize_sched();
+		synchronize_rcu();
 
 	spin_lock(&files->file_lock);
 	if (!new_fdt)