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authorLinus Torvalds <torvalds@linux-foundation.org>2014-02-09 18:12:07 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2014-02-09 18:12:07 -0800
commitf94aa7c7f1fc474be776e4bf88088d5a007d3575 (patch)
treeba607798fb9e9136d267353b9b5c1b4dd50f4819 /include/linux/fs.h
parent9c1db7798141e2658e4b5bb170128dfdc3270ff4 (diff)
parentc9efe51165fa0aff57be54e3cb0201ac87f68980 (diff)
downloadlinux-linaro-stable-f94aa7c7f1fc474be776e4bf88088d5a007d3575.tar.gz
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro: "A couple of fixes, both -stable fodder. The O_SYNC bug is fairly old..." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: fix a kmap leak in virtio_console fix O_SYNC|O_APPEND syncing the wrong range on write()
Diffstat (limited to 'include/linux/fs.h')
-rw-r--r--include/linux/fs.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index d79678c188ad..60829565e552 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2274,7 +2274,13 @@ extern int filemap_fdatawrite_range(struct address_space *mapping,
extern int vfs_fsync_range(struct file *file, loff_t start, loff_t end,
int datasync);
extern int vfs_fsync(struct file *file, int datasync);
-extern int generic_write_sync(struct file *file, loff_t pos, loff_t count);
+static inline int generic_write_sync(struct file *file, loff_t pos, loff_t count)
+{
+ if (!(file->f_flags & O_DSYNC) && !IS_SYNC(file->f_mapping->host))
+ return 0;
+ return vfs_fsync_range(file, pos, pos + count - 1,
+ (file->f_flags & __O_SYNC) ? 0 : 1);
+}
extern void emergency_sync(void);
extern void emergency_remount(void);
#ifdef CONFIG_BLOCK