ext4: use i_size_read in ext4_unaligned_aio()
Theodore Ts'o [Sat, 12 Apr 2014 16:45:25 +0000 (12:45 -0400)]
commit 6e6358fc3c3c862bfe9a5bc029d3f8ce43dc9765 upstream.

We haven't taken i_mutex yet, so we need to use i_size_read().

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

fs/ext4/file.c

index b19f0a4..4635788 100644 (file)
@@ -82,7 +82,7 @@ ext4_unaligned_aio(struct inode *inode, const struct iovec *iov,
        size_t count = iov_length(iov, nr_segs);
        loff_t final_size = pos + count;
 
-       if (pos >= inode->i_size)
+       if (pos >= i_size_read(inode))
                return 0;
 
        if ((pos & blockmask) || (final_size & blockmask))