[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date: Sun, 11 Nov 2018 19:49:05 +0000
From: Ben Hutchings <ben@...adent.org.uk>
To: linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC: akpm@...ux-foundation.org, "Theodore Ts'o" <tytso@....edu>,
"Jan Kara" <jack@...e.cz>, "Amir Goldstein" <amir73il@...il.com>
Subject: [PATCH 3.16 045/366] vfs: add the sb_start_intwrite_trylock() helper
3.16.61-rc1 review patch. If anyone has any objections, please let me know.
------------------
From: Amir Goldstein <amir73il@...il.com>
commit 0c8e3fe35db9b66ae0030849545030ec7c0fc45c upstream.
Needed by ext4 to test frozen fs before updating s_last_mounted.
Signed-off-by: Amir Goldstein <amir73il@...il.com>
Signed-off-by: Theodore Ts'o <tytso@....edu>
Reviewed-by: Jan Kara <jack@...e.cz>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
include/linux/fs.h | 5 +++++
1 file changed, 5 insertions(+)
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -1389,6 +1389,11 @@ static inline void sb_start_intwrite(str
__sb_start_write(sb, SB_FREEZE_FS, true);
}
+static inline int sb_start_intwrite_trylock(struct super_block *sb)
+{
+ return __sb_start_write(sb, SB_FREEZE_FS, false);
+}
+
extern bool inode_owner_or_capable(const struct inode *inode);
Powered by blists - more mailing lists