[PATCH v3 0/5] Add new system call for non-destructive peek and inspection to posix ipc mqueue

[Mathura_Kumar <academic1mathura@gmail.com>]

Patch series overview:

  1. Add New system call do_mq_timedreceive2() and handler implementation
  2. Add system call number in all most common arch.
  3. Prepared Documentation and test
  4. Add entry in performance tools all most common file
  5. Add bitmask flag and user struct size as input for extensibility

change since v2:
 - bitmask flag is added and check for valid operation
 - userspace struct argument size is added for extensibility
 - new test is added
 - documentation is updated approximately
 - increased the total system call count in performance tool as well
 - v2 Link: https://lore.kernel.org/linux-arch/20260320052340.6696-1-academic1mathura@gmail.com/T/#t


  Thanks for reviewing.
  

 Documentation/userspace-api/index.rst         |   1 +
 Documentation/userspace-api/ipc.rst           | 228 +++++
 arch/alpha/kernel/syscalls/syscall.tbl        |   1 +
 arch/arm/tools/syscall.tbl                    |   1 +
 arch/arm64/tools/syscall_32.tbl               |   1 +
 arch/m68k/kernel/syscalls/syscall.tbl         |   1 +
 arch/microblaze/kernel/syscalls/syscall.tbl   |   1 +
 arch/mips/kernel/syscalls/syscall_n32.tbl     |   1 +
 arch/mips/kernel/syscalls/syscall_n64.tbl     |   1 +
 arch/mips/kernel/syscalls/syscall_o32.tbl     |   1 +
 arch/parisc/kernel/syscalls/syscall.tbl       |   1 +
 arch/powerpc/kernel/syscalls/syscall.tbl      |   1 +
 arch/s390/kernel/syscalls/syscall.tbl         |   1 +
 arch/sh/kernel/syscalls/syscall.tbl           |   1 +
 arch/sparc/kernel/syscalls/syscall.tbl        |   1 +
 arch/x86/entry/syscalls/syscall_32.tbl        |   1 +
 arch/x86/entry/syscalls/syscall_64.tbl        |   1 +
 arch/xtensa/kernel/syscalls/syscall.tbl       |   1 +
 include/linux/compat.h                        |   6 +-
 include/linux/syscalls.h                      |   6 +
 include/uapi/asm-generic/unistd.h             |   7 +-
 include/uapi/linux/mqueue.h                   |  14 +-
 ipc/mqueue.c                                  | 211 ++++-
 ipc/msg.c                                     |   2 +-
 ipc/msgutil.c                                 |  48 +-
 ipc/util.h                                    |   3 +-
 kernel/sys_ni.c                               |   3 +
 scripts/syscall.tbl                           |   1 +
 tools/include/uapi/asm-generic/unistd.h       |   6 +-
 .../arch/alpha/entry/syscalls/syscall.tbl     |   1 +
 .../perf/arch/arm/entry/syscalls/syscall.tbl  |   1 +
 .../arch/arm64/entry/syscalls/syscall_32.tbl  |   1 +
 .../arch/mips/entry/syscalls/syscall_n64.tbl  |   1 +
 .../arch/parisc/entry/syscalls/syscall.tbl    |   1 +
 .../arch/powerpc/entry/syscalls/syscall.tbl   |   1 +
 .../perf/arch/s390/entry/syscalls/syscall.tbl |   1 +
 tools/perf/arch/sh/entry/syscalls/syscall.tbl |   1 +
 .../arch/sparc/entry/syscalls/syscall.tbl     |   1 +
 .../arch/x86/entry/syscalls/syscall_32.tbl    |   1 +
 .../arch/x86/entry/syscalls/syscall_64.tbl    |   1 +
 .../arch/xtensa/entry/syscalls/syscall.tbl    |   1 +
 tools/scripts/syscall.tbl                     |   1 +
 tools/testing/selftests/ipc/.gitignore        |   1 +
 tools/testing/selftests/ipc/Makefile          |   9 +-
 tools/testing/selftests/ipc/mq_peek.c         | 813 ++++++++++++++++++
 45 files changed, 1343 insertions(+), 45 deletions(-)
 create mode 100644 Documentation/userspace-api/ipc.rst
 create mode 100644 tools/testing/selftests/ipc/mq_peek.c

-- 
2.43.0