linux-kernel - [PATCH v3 0/2] mm/damon: Fix fake /proc/loadavg reports

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Message-Id: <20211126145015.15862-1-sj@kernel.org>
Date:   Fri, 26 Nov 2021 14:50:13 +0000
From:   SeongJae Park <sj@...nel.org>
To:     akpm@...ux-foundation.org
Cc:     oleksandr@...alenko.name, john.stultz@...aro.org,
        tglx@...utronix.de, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, SeongJae Park <sj@...nel.org>
Subject: [PATCH v3 0/2] mm/damon: Fix fake /proc/loadavg reports

This patchset fixes DAMON's fake load report issue.  The first patch
makes yet another variant of usleep_range() for this fix, and the second
patch fixes the issue of DAMON by making it using the newly introduced
function.

I think these need to be applied on v5.15.y, but the second patch cannot
cleanly applied there as is.  I will back-port this on v5.15.y and post
later once this is merged in the mainline.  If you think this is not
appropriate for stable tree, please let me know.

Changelog
---------

>From v2
(https://lore.kernel.org/linux-mm/20211125160830.30153-1-sj@kernel.org/)
- Cc Oleksandr (Oleksandr Natalenko)
- Add 'Suggested-by:' for Andrew Morton on the first patch

>From v1
(https://lore.kernel.org/linux-mm/20211124145219.32866-1-sj@kernel.org/)
- Avoid copy-and-pasting usleep_delay() in DAMON code (Andrew Morton)

SeongJae Park (2):
  timers: Implement usleep_idle_range()
  mm/damon/core: Fix fake load reports due to uninterruptible sleeps

 include/linux/delay.h | 14 +++++++++++++-
 kernel/time/timer.c   | 16 +++++++++-------
 mm/damon/core.c       |  6 +++---
 3 files changed, 25 insertions(+), 11 deletions(-)

-- 
2.17.1