commit c44939ecb6e05aeaaf12d4e1bb046719c97e457e
author akpm@linux-foundation.org <akpm@linux-foundation.org> Sun Jul 15 23:38:25 2007 -0700
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Mon Jul 16 09:05:37 2007 -0700
tree 5bf1bc2c4c518fb89271110a0e9fbb43d6f4c413
parent 5ed44a401ddfc60e11c3484e86f0c8285051139a

NeilBrown <neilb@suse.de>

The do_loop_readv_writev implementation of readv breaks out of the loop as
soon as a single read request didn't fill it's buffer:

		if (nr != len)
			break;

The generic_file_aio_read version doesn't.  So if it hits EOF before the end
of the list of buffers, it will try again on the next buffer.  If the file was
extended in the mean time, this will produce a bad result.

Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>