tree ed8deca97f1b2beb3f73a79a8112d8819fd2df2c
parent 59d43914ed7b96255271ad6b7b735344beffa3c0
author Akinobu Mita <akinobu.mita@gmail.com> 1412893615 -0700
committer Linus Torvalds <torvalds@linux-foundation.org> 1412907953 -0400

vfs: guard end of device for mpage interface

Add guard_bio_eod() check for mpage code in order to allow us to do IO
even on the odd last sectors of a device, even if the block size is some
multiple of the physical sector size.

Using mpage_readpages() for block device requires this guard check.

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>