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-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 164d2a91667f..6535d5af027e 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2217,7 +2217,13 @@ 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