From: Sage Weil <sage@newdream.net>
Date: Tue, 21 Sep 2010 21:35:37 +0000 (-0700)
Subject: fs: {lock,unlock}_flocks() stubs to prepare for BKL removal
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=8b15575cae7a93a784c3005c42b069edd9ba64dd;p=GitHub%2FLineageOS%2Fandroid_kernel_samsung_universal7580.git

fs: {lock,unlock}_flocks() stubs to prepare for BKL removal

The lock structs are currently protected by the BKL, but are accessed by
code in fs/locks.c and misc file system and DLM code.  These stubs will
allow all users to switch to the new interface before the implementation
is changed to a spinlock.

Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sage Weil <sage@newdream.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 76041b61475..63d069bd80b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1093,6 +1093,10 @@ struct file_lock {
 
 #include <linux/fcntl.h>
 
+/* temporary stubs for BKL removal */
+#define lock_flocks() lock_kernel()
+#define unlock_flocks() unlock_kernel()
+
 extern void send_sigio(struct fown_struct *fown, int fd, int band);
 
 #ifdef CONFIG_FILE_LOCKING