* [GIT PULL] ARM TIF_NOTIFY_SIGNAL fixup
@ 2023-01-06 16:22 Jens Axboe
2023-01-06 21:19 ` pr-tracker-bot
0 siblings, 1 reply; 2+ messages in thread
From: Jens Axboe @ 2023-01-06 16:22 UTC (permalink / raw)
To: Linus Torvalds; +Cc: Russell King (Oracle), LKML, linux-arm-kernel
Hi Linus,
Hui Tang reported a performance regressions with _TIF_WORK_MASK in
newer kernels, which he tracked to a change that went into 5.11. After
this change, we'll call do_work_pending() more often than we need to,
because we're now testing bits 0..15 rather than just 0..7.
Shuffle the bits around to avoid this.
Please pull!
The following changes since commit 69b41ac87e4a664de78a395ff97166f0b2943210:
Merge tag 'for-6.2-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux (2023-01-02 11:06:18 -0800)
are available in the Git repository at:
git://git.kernel.dk/linux.git tags/tif-notify-signal-2023-01-06
for you to fetch changes up to 191f8453fc99a537ea78b727acea739782378b0d:
ARM: renumber bits related to _TIF_WORK_MASK (2023-01-04 07:55:02 -0700)
----------------------------------------------------------------
tif-notify-signal-2023-01-06
----------------------------------------------------------------
Jens Axboe (1):
ARM: renumber bits related to _TIF_WORK_MASK
arch/arm/include/asm/thread_info.h | 13 +++++++------
1 file changed, 7 insertions(+), 6 deletions(-)
--
Jens Axboe
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [GIT PULL] ARM TIF_NOTIFY_SIGNAL fixup
2023-01-06 16:22 [GIT PULL] ARM TIF_NOTIFY_SIGNAL fixup Jens Axboe
@ 2023-01-06 21:19 ` pr-tracker-bot
0 siblings, 0 replies; 2+ messages in thread
From: pr-tracker-bot @ 2023-01-06 21:19 UTC (permalink / raw)
To: Jens Axboe; +Cc: Linus Torvalds, Russell King (Oracle), LKML, linux-arm-kernel
The pull request you sent on Fri, 6 Jan 2023 09:22:20 -0700:
> git://git.kernel.dk/linux.git tags/tif-notify-signal-2023-01-06
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/93387d499e49429eef2c343ab6f9f5d92ec780a2
Thank you!
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