linux/drivers/block/rsxx
Michael Callahan ddcf35d397 block: Add and use op_stat_group() for indexing disk_stat fields.
Add and use a new op_stat_group() function for indexing partition stat
fields rather than indexing them by rq_data_dir() or bio_data_dir().
This function works similarly to op_is_sync() in that it takes the
request::cmd_flags or bio::bi_opf flags and determines which stats
should et updated.

In addition, the second parameter to generic_start_io_acct() and
generic_end_io_acct() is now a REQ_OP rather than simply a read or
write bit and it uses op_stat_group() on the parameter to determine
the stat group.

Note that the partition in_flight counts are not part of the per-cpu
statistics and as such are not indexed via this function.  It's now
indexed by op_is_write().

tj: Refreshed on top of v4.17.  Updated to pass around REQ_OP.

Signed-off-by: Michael Callahan <michaelcallahan@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Joshua Morris <josh.h.morris@us.ibm.com>
Cc: Philipp Reisner <philipp.reisner@linbit.com>
Cc: Matias Bjorling <mb@lightnvm.io>
Cc: Kent Overstreet <kent.overstreet@gmail.com>
Cc: Alasdair Kergon <agk@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-07-18 08:44:20 -06:00
..
Makefile block: IBM RamSan 70/80 branding changes. 2013-03-11 19:53:55 +01:00
config.c block: IBM RamSan 70/80 branding changes. 2013-03-11 19:53:55 +01:00
core.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
cregs.c treewide: setup_timer() -> timer_setup() (2 field) 2017-11-21 15:57:09 -08:00
dev.c block: Add and use op_stat_group() for indexing disk_stat fields. 2018-07-18 08:44:20 -06:00
dma.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
rsxx.h block: IBM RamSan 70/80 trivial changes. 2013-03-11 19:53:55 +01:00
rsxx_cfg.h block: IBM RamSan 70/80 branding changes. 2013-03-11 19:53:55 +01:00
rsxx_priv.h block: switch bios to blk_status_t 2017-06-09 09:27:32 -06:00