Currently, devices like md, bcache uses disk_[start|end]_io_acct to report
iostat. These functions couldn't get proper iostat for partitions on these
devices.
This set resolves this issue by introducing part_[begin|end]_io_acct, and
using them in md and bcache code.
Changes v1 => v2:
1. Refactor the code, as suggested by Christoph.
2. Include Coly's Reviewed-by tag.
Song Liu (3):
block: introduce part_[begin|end]_io_acct
md: use part_[begin|end]_io_acct instead of disk_[begin|end]_io_acct
bcache: use part_[begin|end]_io_acct instead of
disk_[begin|end]_io_acct
block/blk-core.c | 39 +++++++++++++++++++++++++++++++------
drivers/md/bcache/request.c | 10 ++++++----
drivers/md/md.c | 8 ++++----
include/linux/blkdev.h | 5 +++++
4 files changed, 48 insertions(+), 14 deletions(-)
--
2.24.1
