From: Omar Sandoval <osandov@xxxxxx>
This series makes several enhancements to blk-mq-debugfs. v2 adds
patches 3, 4, and 5. It also exports a couple of symbols needed in
patches 11 and 12.
- Patch 1 is a subjective change.
- Patch 2 is a cleanup.
- Patches 3 and 4 are minor tweaks to the queue "state" attribute.
- Patch 5 renames the hardware queue directories.
- Patch 6 cleans up a bunch of seq_file boilerplate.
- Patch 7 is Bart's patch from a couple of weeks ago, necessitated by
patch 9.
- Patch 8 is preparation cleanup for patches 9-12.
- Patch 9 reworks the lifetimes of the debugfs attributes to be tied to
the structure lifetimes themselves rather being duct taped on to
sysfs. This is what I should have done in the first place, and would
have also been a way to fix the same thing we fixed in e869b5462f83
("blk-mq: Unregister debugfs attributes earlier"), but I didn't think
of doing it this way until I started adding scheduler support.
- Patch 10 allows schedulers to register debugfs attributes, implemented
in patches 11 and 12 for kyber and mq-deadline, respectively.
Bart Van Assche (1):
blk-mq: Do not invoke queue operations on a dead queue
Omar Sandoval (11):
blk-mq-debugfs: separate flags with |
blk-mq-debugfs: clean up flag definitions
blk-mq-debugfs: error on long write to queue "state" file
blk-mq-debugfs: don't open code strstrip()
blk-mq-debugfs: rename hw queue directories from <n> to hctx<n>
blk-mq-debugfs: get rid of a bunch of boilerplate
blk-mq: move debugfs declarations to a separate header file
blk-mq: untangle debugfs and sysfs
blk-mq-debugfs: allow schedulers to register debugfs attributes
kyber: add debugfs attributes
mq-deadline: add debugfs attributes
block/blk-core.c | 8 +-
block/blk-mq-debugfs.c | 870 +++++++++++++++++++++--------------------------
block/blk-mq-debugfs.h | 79 +++++
block/blk-mq-sched.c | 24 +-
block/blk-mq-sysfs.c | 10 -
block/blk-mq.c | 7 +
block/blk-mq.h | 28 --
block/blk-sysfs.c | 3 +
block/kyber-iosched.c | 130 +++++++
block/mq-deadline.c | 123 +++++++
include/linux/blk-mq.h | 5 +
include/linux/blkdev.h | 2 +-
include/linux/elevator.h | 7 +
13 files changed, 764 insertions(+), 532 deletions(-)
create mode 100644 block/blk-mq-debugfs.h
--
2.12.2
