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Message-ID: <ZUKttkQ2/hgweOQP@bombadil.infradead.org>
Date: Wed, 1 Nov 2023 12:57:42 -0700
From: Luis Chamberlain <mcgrof@...nel.org>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Joel Granados <joel.granados@...il.com>,
Krister Johansen <kjlx@...pleofstupid.com>,
linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
Kees Cook <keescook@...omium.org>,
Iurii Zaikin <yzaikin@...gle.com>
Subject: [GIT PULL] sysctl changes for v6.7-rc1
The following changes since commit ce9ecca0238b140b88f43859b211c9fdfd8e5b70:
Linux 6.6-rc2 (2023-09-17 14:40:24 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git/ tags/sysctl-6.7-rc1
for you to fetch changes up to 8b793bcda61f6c3ed4f5b2ded7530ef6749580cb:
watchdog: move softlockup_panic back to early_param (2023-11-01 12:10:02 -0700)
----------------------------------------------------------------
sysctl-6.7-rc1
To help make the move of sysctls out of kernel/sysctl.c not incur a size
penalty sysctl has been changed to allow us to not require the sentinel, the
final empty element on the sysctl array. Joel Granados has been doing all this
work. On the v6.6 kernel we got the major infrastructure changes required to
support this. For v6.7-rc1 we have all arch/ and drivers/ modified to remove
the sentinel. Both arch and driver changes have been on linux-next for a bit
less than a month. It is worth re-iterating the value:
- this helps reduce the overall build time size of the kernel and run time
memory consumed by the kernel by about ~64 bytes per array
- the extra 64-byte penalty is no longer inncurred now when we move sysctls
out from kernel/sysctl.c to their own files
For v6.8-rc1 expect removal of all the sentinels and also then the unneeded
check for procname == NULL.
The last 2 patches are fixes recently merged by Krister Johansen which allow
us again to use softlockup_panic early on boot. This used to work but the
alias work broke it. This is useful for folks who want to detect softlockups
super early rather than wait and spend money on cloud solutions with nothing
but an eventual hung kernel. Although this hadn't gone through linux-next it's
also a stable fix, so we might as well roll through the fixes now.
----------------------------------------------------------------
Joel Granados (21):
S390: Remove now superfluous sentinel elem from ctl_table arrays
arm: Remove now superfluous sentinel elem from ctl_table arrays
arch/x86: Remove now superfluous sentinel elem from ctl_table arrays
x86/vdso: Remove now superfluous sentinel element from ctl_table array
riscv: Remove now superfluous sentinel element from ctl_table array
powerpc: Remove now superfluous sentinel element from ctl_table arrays
c-sky: Remove now superfluous sentinel element from ctl_talbe array
hpet: Remove now superfluous sentinel element from ctl_table array
xen: Remove now superfluous sentinel element from ctl_table array
tty: Remove now superfluous sentinel element from ctl_table array
scsi: Remove now superfluous sentinel element from ctl_table array
parport: Remove the now superfluous sentinel element from ctl_table array
macintosh: Remove the now superfluous sentinel element from ctl_table array
infiniband: Remove the now superfluous sentinel element from ctl_table array
char-misc: Remove the now superfluous sentinel element from ctl_table array
vrf: Remove the now superfluous sentinel element from ctl_table array
sgi-xp: Remove the now superfluous sentinel element from ctl_table array
fw loader: Remove the now superfluous sentinel element from ctl_table array
raid: Remove now superfluous sentinel element from ctl_table array
Drivers: hv: Remove now superfluous sentinel element from ctl_table array
intel drm: Remove now superfluous sentinel element from ctl_table array
Krister Johansen (2):
proc: sysctl: prevent aliased sysctls from getting passed to init
watchdog: move softlockup_panic back to early_param
arch/arm/kernel/isa.c | 4 ++--
arch/arm64/kernel/armv8_deprecated.c | 8 +++-----
arch/arm64/kernel/fpsimd.c | 2 --
arch/arm64/kernel/process.c | 1 -
arch/csky/abiv1/alignment.c | 1 -
arch/powerpc/kernel/idle.c | 1 -
arch/powerpc/platforms/pseries/mobility.c | 1 -
arch/riscv/kernel/vector.c | 1 -
arch/s390/appldata/appldata_base.c | 4 +---
arch/s390/kernel/debug.c | 1 -
arch/s390/kernel/topology.c | 1 -
arch/s390/mm/cmm.c | 1 -
arch/s390/mm/pgalloc.c | 1 -
arch/x86/entry/vdso/vdso32-setup.c | 1 -
arch/x86/kernel/cpu/intel.c | 1 -
arch/x86/kernel/itmt.c | 1 -
drivers/base/firmware_loader/fallback_table.c | 1 -
drivers/char/hpet.c | 1 -
drivers/char/ipmi/ipmi_poweroff.c | 1 -
drivers/char/random.c | 1 -
drivers/gpu/drm/i915/i915_perf.c | 1 -
drivers/hv/hv_common.c | 1 -
drivers/infiniband/core/iwcm.c | 1 -
drivers/infiniband/core/ucma.c | 1 -
drivers/macintosh/mac_hid.c | 1 -
drivers/md/md.c | 1 -
drivers/misc/sgi-xp/xpc_main.c | 2 --
drivers/net/vrf.c | 1 -
drivers/parport/procfs.c | 28 +++++++++++----------------
drivers/perf/arm_pmuv3.c | 1 -
drivers/scsi/scsi_sysctl.c | 1 -
drivers/scsi/sg.c | 1 -
drivers/tty/tty_io.c | 1 -
drivers/xen/balloon.c | 1 -
fs/proc/proc_sysctl.c | 8 +++++++-
include/linux/sysctl.h | 6 ++++++
init/main.c | 4 ++++
kernel/watchdog.c | 7 +++++++
38 files changed, 41 insertions(+), 60 deletions(-)
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