This is a trivial follow up on the V5 series, which can be found here:
https://lore.kernel.org/all/20251022121836.019469732@linutronix.de
Changes vs. V5:
- Adjust to the uaccess changes
As for the previous version these patches have a dependency on the uaccess
scope series:
https://lore.kernel.org/20251027083700.573016505@linutronix.de
which is available at:
git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git uaccess/scoped
For your convenience the combination of both is available from git:
git://git.kernel.org/pub/scm/linux/kernel/git/tglx/devel.git rseq/perf
Thanks,
tglx
---
Thomas Gleixner (31):
rseq: Avoid pointless evaluation in __rseq_notify_resume()
rseq: Condense the inline stubs
rseq: Move algorithm comment to top
rseq: Remove the ksig argument from rseq_handle_notify_resume()
rseq: Simplify registration
rseq: Simplify the event notification
rseq, virt: Retrigger RSEQ after vcpu_run()
rseq: Avoid CPU/MM CID updates when no event pending
rseq: Introduce struct rseq_data
entry: Cleanup header
entry: Remove syscall_enter_from_user_mode_prepare()
entry: Inline irqentry_enter/exit_from/to_user_mode()
sched: Move MM CID related functions to sched.h
rseq: Cache CPU ID and MM CID values
rseq: Record interrupt from user space
rseq: Provide tracepoint wrappers for inline code
rseq: Expose lightweight statistics in debugfs
rseq: Provide static branch for runtime debugging
rseq: Provide and use rseq_update_user_cs()
rseq: Replace the original debug implementation
rseq: Make exit debugging static branch based
rseq: Use static branch for syscall exit debug when GENERIC_IRQ_ENTRY=y
rseq: Provide and use rseq_set_ids()
rseq: Separate the signal delivery path
rseq: Rework the TIF_NOTIFY handler
rseq: Optimize event setting
rseq: Implement fast path for exit to user
rseq: Switch to fast path processing on exit to user
entry: Split up exit_to_user_mode_prepare()
rseq: Split up rseq_exit_to_user_mode()
rseq: Switch to TIF_RSEQ if supported
Documentation/admin-guide/kernel-parameters.txt | 4
arch/x86/entry/syscall_32.c | 3
drivers/hv/mshv_root_main.c | 3
fs/binfmt_elf.c | 2
fs/exec.c | 2
include/asm-generic/thread_info_tif.h | 3
include/linux/entry-common.h | 38 -
include/linux/irq-entry-common.h | 68 ++
include/linux/mm.h | 25
include/linux/resume_user_mode.h | 2
include/linux/rseq.h | 228 +++++---
include/linux/rseq_entry.h | 592 +++++++++++++++++++++
include/linux/rseq_types.h | 93 +++
include/linux/sched.h | 48 +
include/linux/thread_info.h | 5
include/trace/events/rseq.h | 4
include/uapi/linux/rseq.h | 21
init/Kconfig | 28 -
kernel/entry/common.c | 39 -
kernel/entry/syscall-common.c | 8
kernel/ptrace.c | 6
kernel/rseq.c | 654 ++++++++++--------------
kernel/sched/core.c | 10
kernel/sched/membarrier.c | 8
kernel/sched/sched.h | 5
virt/kvm/kvm_main.c | 7
26 files changed, 1301 insertions(+), 605 deletions(-)