linux-kernel - [PATCH V2] fs/jfs/jfs_inode.c: atomically set inode->i

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Message-Id: <20140414093901.ea2d873d712ca4c8155d7827@skynet.be>
Date:	Mon, 14 Apr 2014 09:39:01 +0200
From:	Fabian Frederick <fabf@...net.be>
To:	linux-kernel <linux-kernel@...r.kernel.org>
Cc:	Dave <shaggy@...nel.org>, Tytso <tytso@....edu>
Subject: [PATCH V2] fs/jfs/jfs_inode.c: atomically set inode->i_flags

According to commit 5f16f3225b0624

ext4: atomically set inode->i_flags in ext4_set_inode_flags()

Inspired-by: "Theodore Ts'o" <tytso@....edu>
Cc: Dave Kleikamp <shaggy@...nel.org>
Cc: "Theodore Ts'o" <tytso@....edu>
Signed-off-by: Fabian Frederick <fabf@...net.be>
---
 fs/jfs/jfs_inode.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 7f464c5..6b0f816 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -29,20 +29,20 @@
 void jfs_set_inode_flags(struct inode *inode)
 {
 	unsigned int flags = JFS_IP(inode)->mode2;
-
-	inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
-		S_NOATIME | S_DIRSYNC | S_SYNC);
+	unsigned int new_fl = 0;
 
 	if (flags & JFS_IMMUTABLE_FL)
-		inode->i_flags |= S_IMMUTABLE;
+		new_fl |= S_IMMUTABLE;
 	if (flags & JFS_APPEND_FL)
-		inode->i_flags |= S_APPEND;
+		new_fl |= S_APPEND;
 	if (flags & JFS_NOATIME_FL)
-		inode->i_flags |= S_NOATIME;
+		new_fl |= S_NOATIME;
 	if (flags & JFS_DIRSYNC_FL)
-		inode->i_flags |= S_DIRSYNC;
+		new_fl |= S_DIRSYNC;
 	if (flags & JFS_SYNC_FL)
-		inode->i_flags |= S_SYNC;
+		new_fl |= S_SYNC;
+	inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
+			S_DIRSYNC | S_SYNC);
 }
 
 void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
-- 
1.8.3.2
--
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