2019-03-05 19:51:43

by Dennis Zhou

[permalink] [raw]
Subject: [GIT PULL] percpu changes for v5.1-rc1

Hi Linus,

There are 2 minor changes to the percpu allocator this merge window:
* for loop condition that could be out of bounds on multi-socket UP
* cosmetic removal of pcpu_group_offsets[0] in UP code as it is 0

There has been an interest in having better alignment with percpu
allocations. This has caused a performance regression in at least 1
reported workload. I have a series out which adds scan hints to the
allocator as well as some other performance oriented changes. I hope to
have this queued for v5.2 soon.

Thanks,
Dennis

The following changes since commit a3b22b9f11d9fbc48b0291ea92259a5a810e9438:

Linux 5.0-rc7 (2019-02-17 18:46:40 -0800)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git for-5.1

for you to fetch changes up to 1b046b445c0f856c3c1eed38a348bd87cc2dc730:

percpu: km: no need to consider pcpu_group_offsets[0] (2019-02-26 13:47:58 -0800)

----------------------------------------------------------------
Peng Fan (2):
percpu: use nr_groups as check condition
percpu: km: no need to consider pcpu_group_offsets[0]

mm/percpu-km.c | 2 +-
mm/percpu.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)


2019-03-07 18:31:37

by pr-tracker-bot

[permalink] [raw]
Subject: Re: [GIT PULL] percpu changes for v5.1-rc1

The pull request you sent on Tue, 5 Mar 2019 14:46:00 -0500:

> git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu.git for-5.1

has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/8d521d94dacd2bcca5ef2054b6d9d9986da81423

Thank you!

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