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Linus Torvalds f10f0481a5 A fix for a bug with restartable sequences and KVM. KVM's handling 
of TIF_NOTIFY_RESUME, e.g. for task migration, clears the flag without
 informing rseq and leads to stale data in userspace's rseq struct.
 
 I'm sending this as a separate pull request since it's not code
 that I usually touch.  In particular, patch 2 ("entry: rseq: Call
 rseq_handle_notify_resume() in tracehook_notify_resume()") is just a
 cleanup to try and make future bugs less likely.  If you prefer this to
 be sent via Thomas and only in 5.16, please speak up.
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Merge tag 'for-linus-rseq' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull rseq fixes from Paolo Bonzini:
 "A fix for a bug with restartable sequences and KVM.

  KVM's handling of TIF_NOTIFY_RESUME, e.g. for task migration, clears
  the flag without informing rseq and leads to stale data in userspace's
  rseq struct"

* tag 'for-linus-rseq' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: selftests: Remove __NR_userfaultfd syscall fallback
  KVM: selftests: Add a test for KVM_RUN+rseq to detect task migration bugs
  tools: Move x86 syscall number fallbacks to .../uapi/
  entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume()
  KVM: rseq: Update rseq when processing NOTIFY_RESUME on xfer to KVM guest
2021-09-23 11:24:12 -07:00
..
alpha alpha: enable GENERIC_PCI_IOMAP unconditionally 2021-09-19 10:37:00 -07:00
arc Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
arm entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
arm64 entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
csky entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
h8300 Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
hexagon Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
ia64 Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
m68k m68k: mvme: Remove overdue #warnings in RTC handling 2021-09-13 11:19:05 +02:00
microblaze Microblaze patches for 5.15-rc1 2021-09-08 16:02:13 -07:00
mips entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
nds32 nds32/setup: remove unused memblock_region variable in setup_memory() 2021-09-08 18:45:53 -07:00
nios2 Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
openrisc Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00
parisc parisc: Declare pci_iounmap() parisc version only when CONFIG_PCI enabled 2021-09-19 10:36:09 -07:00
powerpc entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
riscv Merge branch 'gcc-min-version-5.1' (make gcc-5.1 the minimum version) 2021-09-13 10:43:04 -07:00
s390 Networking fixes for 5.15-rc3. 2021-09-23 10:30:31 -07:00
sh sh: Add missing FORCE prerequisites in Makefile 2021-09-19 10:13:42 +09:00
sparc sparc64: fix pci_iounmap() when CONFIG_PCI is not set 2021-09-20 10:56:32 -07:00
um This pull request contains the following changes for UML: 2021-09-09 13:45:26 -07:00
x86 A set of x86 fixes: 2021-09-19 13:29:36 -07:00
xtensa Tracing updates for 5.15: 2021-09-05 11:50:41 -07:00
.gitignore
Kconfig Merge branch 'akpm' (patches from Andrew) 2021-09-08 12:55:35 -07:00