linux/Documentation
Linus Torvalds 7f00232152 Miscellaneous scheduler fixes:
- Fix spurious failures in rseq self-tests (Mark Brown)
 
  - Fix rseq rseq::cpu_id_start ABI regression due to
    TCMalloc's creative use of the supposedly read-only field.
    The fix is to introduce a new ABI variant based on
    a new (larger) rseq area registration size, to keep
    the TCMalloc use of rseq backwards compatible on new kernels.
    (Thomas Gleixner)
 
  - Fix wakeup_preempt_fair() for not waking up task (Vincent Guittot)
 
  - Fix s64 mult overflow in vruntime_eligible() (Zhan Xusheng)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2026-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:

 - Fix spurious failures in rseq self-tests (Mark Brown)

 - Fix rseq rseq::cpu_id_start ABI regression due to TCMalloc's creative
   use of the supposedly read-only field

   The fix is to introduce a new ABI variant based on a new (larger)
   rseq area registration size, to keep the TCMalloc use of rseq
   backwards compatible on new kernels (Thomas Gleixner)

 - Fix wakeup_preempt_fair() for not waking up task (Vincent Guittot)

 - Fix s64 mult overflow in vruntime_eligible() (Zhan Xusheng)

* tag 'sched-urgent-2026-05-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/fair: Fix wakeup_preempt_fair() for not waking up task
  sched/fair: Fix overflow in vruntime_eligible()
  selftests/rseq: Expand for optimized RSEQ ABI v2
  rseq: Reenable performance optimizations conditionally
  rseq: Implement read only ABI enforcement for optimized RSEQ V2 mode
  selftests/rseq: Validate legacy behavior
  selftests/rseq: Make registration flexible for legacy and optimized mode
  selftests/rseq: Skip tests if time slice extensions are not available
  rseq: Revert to historical performance killing behaviour
  rseq: Don't advertise time slice extensions if disabled
  rseq: Protect rseq_reset() against interrupts
  rseq: Set rseq::cpu_id_start to 0 on unregistration
  selftests/rseq: Don't run tests with runner scripts outside of the scripts
2026-05-08 19:42:10 -07:00
..
ABI selinux: prune /sys/fs/selinux/user 2026-05-05 15:27:44 -04:00
accel
accounting
admin-guide cgroup: Fixes for v7.1-rc2 2026-05-05 15:43:32 -07:00
arch s390 updates for 7.1 merge window 2026-04-22 11:13:45 -07:00
block Documentation: ublk: address review comments for SHMEM_ZC docs 2026-04-09 19:10:44 -06:00
bpf docs/bpf: add missing fsession attach type to docs 2026-04-12 12:42:38 -07:00
cdrom
core-api mm.git review status for linus..mm-stable 2026-04-15 12:59:16 -07:00
cpu-freq
crypto Crypto library fix and documentation update for 7.1 2026-04-21 11:46:22 -07:00
dev-tools mm.git review status for linus..mm-stable 2026-04-15 12:59:16 -07:00
devicetree mailbox: updates for v7.1 2026-04-27 15:21:18 -07:00
doc-guide
driver-api We've finally gotten rid of the struct clk_ops::round_rate() code after months 2026-04-21 08:33:26 -07:00
edac
fault-injection
fb
features RISC-V updates for v7.1 2026-04-24 10:00:37 -07:00
filesystems \n 2026-04-27 16:45:39 -07:00
firmware_class
firmware-guide
fpga
gpu DRM Rust changes for v7.1-rc1 2026-04-01 07:32:05 +10:00
hid Docs: hid: intel-ish-hid: make long URL usable 2026-04-09 08:40:41 -06:00
hwmon hwmon: add support for MCP998X 2026-04-11 00:02:13 -07:00
i2c
iio
images
infiniband
input
kbuild Modules changes for v7.1-rc1 2026-04-14 17:16:38 -07:00
kernel-hacking
leds
litmus-tests
livepatch
locking
maintainer
mhi
misc-devices
mm mm.git review status for linus..mm-stable 2026-04-15 12:59:16 -07:00
netlabel
netlink net: psp: require admin permission for dev-set and key-rotate 2026-04-28 17:44:20 -07:00
networking Delete some obsolete networking code 2026-04-24 09:41:58 -07:00
nvdimm
nvme
PCI pci-v7.1-changes 2026-04-15 14:41:21 -07:00
pcmcia
peci
power
process SPDX change for 7.1-rc1 2026-04-24 13:30:54 -07:00
RCU
rust docs: rust: general-information: use real example 2026-04-07 10:00:25 +02:00
scheduler sched_ext: Changes for v7.1 2026-04-15 10:54:24 -07:00
scsi
security ipe/stable-7.1 PR 20260413 2026-04-15 15:19:45 -07:00
sound
sphinx
sphinx-includes
sphinx-static
spi
staging net: remove ax25 and amateur radio (hamradio) subsystem 2026-04-23 10:24:02 -07:00
sunrpc/xdr
target
tee
timers
tools RTLA patches for v7.1: 2026-04-15 17:48:24 -07:00
trace Runtime Verification updates for 7.1: 2026-04-15 17:15:18 -07:00
translations Delete some obsolete networking code 2026-04-24 09:41:58 -07:00
usb
userspace-api rseq: Reenable performance optimizations conditionally 2026-05-06 17:40:27 +02:00
virt - ESA nesting support 2026-04-13 19:01:15 +02:00
w1
watchdog
wmi platform/wmi: Replace .no_notify_data with .min_event_size 2026-04-13 14:11:27 +03:00
.gitignore
.renames.txt drivers: net: smsc: smc91c92: Remove this driver 2026-04-23 15:57:06 -07:00
atomic_bitops.txt
atomic_t.txt
Changes
CodingStyle
conf.py
docutils.conf
index.rst
Kconfig
Makefile
memory-barriers.txt
SubmittingPatches
subsystem-apis.rst net: remove ISDN subsystem and Bluetooth CMTP 2026-04-23 10:24:02 -07:00