Merge branch 'for-3.9/drivers' of git://git.kernel.dk/linux-block

[karo-tx-linux.git] / fs / splice.c

diff --git a/fs/splice.c b/fs/splice.c
index 963213d564032f836d2fe0957eeb2080e602a48e..718bd0056384688af6ead056156574638c0be6e9 100644 (file)
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -569,7 +569,7 @@ static ssize_t kernel_readv(struct file *file, const struct iovec *vec,
        return res;
 }
 
-static ssize_t kernel_write(struct file *file, const char *buf, size_t count,
+ssize_t kernel_write(struct file *file, const char *buf, size_t count,
                            loff_t pos)
 {
        mm_segment_t old_fs;
@@ -578,11 +578,12 @@ static ssize_t kernel_write(struct file *file, const char *buf, size_t count,
        old_fs = get_fs();
        set_fs(get_ds());
        /* The cast to a user pointer is valid due to the set_fs() */
-       res = vfs_write(file, (const char __user *)buf, count, &pos);
+       res = vfs_write(file, (__force const char __user *)buf, count, &pos);
        set_fs(old_fs);
 
        return res;
 }
+EXPORT_SYMBOL(kernel_write);
 
 ssize_t default_file_splice_read(struct file *in, loff_t *ppos,
                                 struct pipe_inode_info *pipe, size_t len,