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path: root/drivers/md/dm-bio-prison-v1.c
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* dm: adjust structure members to improve alignmentMike Snitzer2018-06-081-1/+1
| | | | | | | | | Eliminate most holes in DM data structures that were modified by commit 6f1c819c21 ("dm: convert to bioset_init()/mempool_init()"). Also prevent structure members from unnecessarily spanning cache lines. Signed-off-by: Mike Snitzer <snitzer@redhat.com>
* dm: Use kzalloc for all structs with embedded biosets/mempoolsKent Overstreet2018-06-051-1/+1
| | | | | | | | | | | | mempool_init()/bioset_init() require that the mempools/biosets be zeroed first; they probably should not _require_ this, but not allocating those structs with kzalloc is a fairly nonsensical thing to do (calling mempool_exit()/bioset_exit() on an uninitialized mempool/bioset is legal and safe, but only works if said memory was zeroed.) Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* dm: convert to bioset_init()/mempool_init()Kent Overstreet2018-05-301-6/+7
| | | | | | | | Convert dm to embedded bio sets. Acked-by: Mike Snitzer <snitzer@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
* dm bio prison: use rb_entry() rather than container_of()Geliang Tang2017-06-191-1/+1
| | | | | | | | | To make the code clearer, use rb_entry() instead of container_of() to deal with rbtree. Signed-off-by: Geliang Tang <geliangtang@gmail.com> Acked-by: Coly Li <colyli@suse.de> Signed-off-by: Mike Snitzer <snitzer@redhat.com>
* block: switch bios to blk_status_tChristoph Hellwig2017-06-091-2/+2
| | | | | | | | | | Replace bi_error with a new bi_status to allow for a clear conversion. Note that device mapper overloaded bi_error with a private value, which we'll have to keep arround at least for now and thus propagate to a proper blk_status_t value. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jens Axboe <axboe@fb.com>
* dm bio prison v2: new interface for the bio prisonJoe Thornber2017-03-071-0/+464
The deferred set is gone and all methods have _v2 appended to the end of their names to allow for continued use of the original bio prison in DM thin-provisioning. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com>