From: Fabian Frederick <fabf@skynet.be>
Date: Mon, 27 Feb 2017 22:27:19 +0000 (-0800)
Subject: hfsplus: atomically read inode size
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a3f2235012cbafdfc0863367c88e29ed789a24f6;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

hfsplus: atomically read inode size

See i_size_read() comments in include/linux/fs.h

Link: http://lkml.kernel.org/r/20170123175338.3840-1-fabf@skynet.be
Signed-off-by: Fabian Frederick <fabf@skynet.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c
index ebb85e5f6549..e254fa0f0697 100644
--- a/fs/hfsplus/wrapper.c
+++ b/fs/hfsplus/wrapper.c
@@ -132,7 +132,7 @@ static int hfsplus_get_last_session(struct super_block *sb,
 
 	/* default values */
 	*start = 0;
-	*size = sb->s_bdev->bd_inode->i_size >> 9;
+	*size = i_size_read(sb->s_bdev->bd_inode) >> 9;
 
 	if (HFSPLUS_SB(sb)->session >= 0) {
 		te.cdte_track = HFSPLUS_SB(sb)->session;