Mateusz Guzik 03aef0602f pid: reorder fields in pid_namespace to reduce false sharing ...

alloc_pid() loads pid_cachep, level and pid_max prior to taking the
lock.

It dirties idr and pid_allocated with the lock.

Some of these fields share the cacheline as is, split them up.

No change in the size of the struct.

Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>
Link: https://patch.msgid.link/20260120204820.1497002-1-mjguzik@gmail.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>

2026-02-10 11:39:30 +01:00

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acpi

Revert "ACPI: processor: idle: Optimize ACPI idle driver registration"

2025-11-25 16:08:06 +01:00

asm-generic

Merge tag 'hyperv-next-signed-20251207' of git://git.kernel.org/pub/scm/linux/kernel/git/hyperv/linux

2025-12-09 06:10:17 +09:00

clocksource

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crypto

Merge tag 'v6.19-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6

2025-12-03 11:28:38 -08:00

cxl

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drm

Merge tag 'topic/xe-vfio-2025-12-01' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

2025-12-05 10:16:25 +10:00

dt-bindings

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

2025-12-08 09:38:52 +09:00

hyperv

mshv: Add definitions for MSHV sleep state configuration

2025-12-05 23:24:57 +00:00

keys

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kunit

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kvm

KVM: arm64: GICv2: Handle deactivation via GICV_DIR traps

2025-11-24 14:29:14 -08:00

linux

pid: reorder fields in pid_namespace to reduce false sharing

2026-02-10 11:39:30 +01:00

math-emu

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media

media: v4l2-isp: Rename block_info to block_type_info

2025-11-14 15:48:49 +01:00

memory

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misc

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net

Merge tag '9p-for-6.19-rc1' of https://github.com/martinetd/linux

2025-12-07 08:29:09 -08:00

pcmcia

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ras

Merge tag 'mm-stable-2025-12-03-21-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2025-12-05 13:52:43 -08:00

rdma

RDMA/core: Add new IB rate for XDR (8x) support

2025-11-24 02:58:30 -05:00

rv

rv: Fix compilation if !CONFIG_RV_REACTORS

2025-12-02 12:33:37 -05:00

scsi

Merge branch 6.18/scsi-fixes into 6.19/scsi-staging

2025-11-19 22:59:25 -05:00

soc

Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

2025-12-08 09:38:52 +09:00

sound

Merge tag 'soundwire-6.19-rc1_updated' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire

2025-12-13 16:26:55 +12:00

target

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trace

Merge tag 'ceph-for-6.19-rc1' of https://github.com/ceph/ceph-client

2025-12-14 15:24:10 +12:00

uapi

Merge tag 'sound-fix-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

2025-12-13 16:09:10 +12:00

ufs

Merge patch series "Add OP-TEE based RPMB driver for UFS devices"

2025-11-20 10:26:13 -05:00

vdso

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video

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xen

drivers/xen/xenbus: Replace deprecated strcpy in xenbus_transaction_end

2025-11-17 08:48:40 +01:00

Kbuild

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