3 Commits

Author	SHA1	Message	Date
Jens Axboe	b228ba1cb9	null_blk: fix zoned support for non-rq based operation ... The supported added for zones in null_blk seem to assume that only rq based operation is possible. But this depends on the queue_mode setting, if this is set to 0, then cmd->bio is what we need to be operating on. Right now any attempt to load null_blk with queue_mode=0 will insta-crash, since cmd->rq is NULL and null_handle_cmd() assumes it to always be set. Make the zoned code deal with bio's instead, or pass in the appropriate sector/nr_sectors instead. Fixes: ca4b2a0119 ("null_blk: add zone support") Tested-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>	2018-09-12 18:21:11 -06:00
Jens Axboe	61884de08f	null_blk: add lock drop/acquire annotation ... sparse complains: drivers/block/null_blk_main.c:816:24: sparse: context imbalance in 'null_insert_page' - unexpected unlock Fix it by adding the necessary annotations to the function. Signed-off-by: Jens Axboe <axboe@kernel.dk>	2018-08-09 14:22:41 -06:00
Bart Van Assche	76f17d8ba1	block: Rename the null_blk_mod kernel module back into null_blk ... Commit ca4b2a0119 ("null_blk: add zone support") breaks several blktests scripts because it renamed the null_blk kernel module into null_blk_mod. Hence rename null_blk_mod back into null_blk. Fixes: ca4b2a0119 ("null_blk: add zone support") Signed-off-by: Bart Van Assche <bart.vanassche@wdc.com> Cc: Matias Bjorling <matias.bjorling@wdc.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Ming Lei <ming.lei@redhat.com> Cc: Damien Le Moal <damien.lemoal@wdc.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>	2018-07-24 09:54:36 -06:00