bcache: use kmalloc to allocate bio in bch_data_verify()
authorNeilBrown <neilb@suse.com>
Sun, 18 Jun 2017 04:38:59 +0000 (14:38 +1000)
committerJens Axboe <axboe@kernel.dk>
Sun, 18 Jun 2017 18:40:59 +0000 (12:40 -0600)
commit5a136fdf5a0ab3c021ef6d989bb56a361e132234
treedca47cf7c7b3baeaf1e47257bc14b3e2b3935d69
parent4559fa55193f71d715319b841f8613d8442283d6
bcache: use kmalloc to allocate bio in bch_data_verify()

This function allocates a bio, then a collection
of pages.  It copes with failure.

It currently uses a mempool() to allocate the bio,
but alloc_page() to allocate the pages.  These fail
in different ways, so the usage is inconsistent.

Change the bio_clone() to bio_clone_kmalloc()
so that no pool is used either for the bio or the pages.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Kent Overstreet <kent.overstreet@gmail.com>
Reviewed-by : Ming Lei <ming.lei@redhat.com>
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
drivers/md/bcache/debug.c