[PATCH 0/1] [G/master] md: improve IO accounting

[Paolo Pisati]

BugLink: https://bugs.launchpad.net/bugs/1891151

[Impact]
Currently reported IO stats may be incorrect or missing.

The following patch correct statistics about in-flight IOs and IO processing time,
interpreted e.g. in iostat as await, svctm, aqu-sz and %util.

[Fix]
Upstream commit:
41d2d848 md: improve io stats accounting

The attached patch is a backport of the upstream commit, contextually modified to
make it apply cleanly.

[Regression potential]
Upstream code, and fixes IO stats that could be really useful.


Artur Paszkiewicz (1):
  md: improve io stats accounting

 drivers/md/md.c | 57 ++++++++++++++++++++++++++++++++++++++-----------
 drivers/md/md.h |  1 +
 2 files changed, 46 insertions(+), 12 deletions(-)

-- 
2.25.1