linux.git/drivers/md/bcache, branch v4.8-rc2

block: rename bio bi_rw to bi_opf

2016-08-07T20:41:02+00:00

Since commit 63a4cc24867d, bio->bi_rw contains flags in the lower
portion and the op code in the higher portions. This means that
old code that relies on manually setting bi_rw is most likely
going to be broken. Instead of letting that brokeness linger,
rename the member, to force old and out-of-tree code to break
at compile time instead of at runtime.

No intended functional changes in this commit.

Signed-off-by: Jens Axboe

block: simplify and cleanup bvec pool handling

2016-07-20T23:37:02+00:00

Instead of a flag and an index just make sure an index of 0 means
no need to free the bvec array.  Also move the constants related
to the bvec pools together and use a consistent naming scheme for
them.

Signed-off-by: Christoph Hellwig 
Reviewed-by: Johannes Thumshirn 
Reviewed-by: Mike Christie 
Signed-off-by: Jens Axboe

bcache: Remove redundant block_size assignment

2016-07-05T17:34:50+00:00

We have assigned sb->block_size before the switch,
so remove the redundant one.

Reviewed-by: Coly Li 
Signed-off-by: Yijing Wang 
Acked-by: Eric Wheeler 
Signed-off-by: Jens Axboe

bcache: update document info

2016-07-05T17:34:49+00:00

There is no return in continue_at(), update the documentation.

Signed-off-by: Yijing Wang 
Acked-by: Coly Li 
Signed-off-by: Jens Axboe

bcache: Remove redundant parameter for cache_alloc()

2016-07-05T17:34:47+00:00

Cache_sb is not used in cache_alloc, and we have copied
sb info to cache->sb already, remove it.

Reviewed-by: Coly Li 
Signed-off-by: Yijing Wang 
Signed-off-by: Jens Axboe

bcache: Remove deprecated create_workqueue

2016-06-12T02:03:04+00:00

alloc_workqueue replaces deprecated create_workqueue().

Dedicated workqueues have been used since bcache_wq and moving_gc_wq
are workqueues for writes and are being used on a memory reclaim path.
WQ_MEM_RECLAIM has been set to ensure forward progress under memory
pressure.
Since there are only a fixed number of work items, explicit concurrency
limit is unnecessary here.

Signed-off-by: Bhaktipriya Shridhar 
Acked-by: Tejun Heo 
Signed-off-by: Jens Axboe

block, drivers, fs: rename REQ_FLUSH to REQ_PREFLUSH

2016-06-07T19:41:38+00:00

To avoid confusion between REQ_OP_FLUSH, which is handled by
request_fn drivers, and upper layers requesting the block layer
perform a flush sequence along with possibly a WRITE, this patch
renames REQ_FLUSH to REQ_PREFLUSH.

Signed-off-by: Mike Christie 
Reviewed-by: Christoph Hellwig 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Jens Axboe

bcache: use bio op accessors

2016-06-07T19:41:38+00:00

Separate the op from the rq_flag_bits and have bcache
set/get the bio using bio_set_op_attrs/bio_op.

Signed-off-by: Mike Christie 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Jens Axboe

bcache: use op_is_write instead of checking for REQ_WRITE

2016-06-07T19:41:38+00:00

We currently set REQ_WRITE/WRITE for all non READ IOs
like discard, flush, writesame, etc. In the next patches where we
no longer set up the op as a bitmap, we will not be able to
detect a operation direction like writesame by testing if REQ_WRITE is
set.

This has bcache use the op_is_write helper which will do the right
thing.

Signed-off-by: Mike Christie 
Reviewed-by: Hannes Reinecke 
Signed-off-by: Jens Axboe

block/fs/drivers: remove rw argument from submit_bio

2016-06-07T19:41:38+00:00

This has callers of submit_bio/submit_bio_wait set the bio->bi_rw
instead of passing it in. This makes that use the same as
generic_make_request and how we set the other bio fields.

Signed-off-by: Mike Christie 

Fixed up fs/ext4/crypto.c

Signed-off-by: Jens Axboe