dm crypt: use bio_add_page()
authorMing Lei <tom.leiming@gmail.com>
Sat, 29 Oct 2016 08:08:06 +0000 (16:08 +0800)
committerMike Snitzer <snitzer@redhat.com>
Mon, 21 Nov 2016 14:51:58 +0000 (09:51 -0500)
commit0dae7fe59749ba3a3644f717315097422bea9680
tree4c8a286ed56fcb7ae2d9c84800c68f3d5f4c939e
parentcacc7b0556739bd6018252731c0237c071ba51da
dm crypt: use bio_add_page()

Use bio_add_page(), the standard interface for adding a page to a bio,
rather than open-coding the same.

It should be noted that the 'clone' bio that is allocated using
bio_alloc_bioset(), in crypt_alloc_buffer(), does _not_ set the
bio's BIO_CLONED flag.  As such, bio_add_page()'s early return for true
bio clones (those with BIO_CLONED set) isn't applicable.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
drivers/md/dm-crypt.c