[git pull] xattr stuff

[Al Viro]

The following changes since commit 9852d85ec9d492ebef56dc5f229416c925758edc:

  Linux 6.12-rc1 (2024-09-29 15:06:19 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git tags/pull-xattr

for you to fetch changes up to 46a7fcec097da5b3188dce608362fe6bf4ea26ee:

  xattr: remove redundant check on variable err (2024-11-06 13:00:01 -0500)

----------------------------------------------------------------
	sanitize xattr and io_uring interactions with it,
add *xattrat() syscalls, sanitize struct filename handling in there.

Signed-off-by: Al Viro <viro@xxxxxxxxxxxxxxxxxx>

----------------------------------------------------------------
Al Viro (9):
      teach filename_lookup() to treat NULL filename as ""
      getname_maybe_null() - the third variant of pathname copy-in
      io_[gs]etxattr_prep(): just use getname()
      xattr: switch to CLASS(fd)
      new helper: import_xattr_name()
      replace do_setxattr() with saner helpers.
      replace do_getxattr() with saner helpers.
      new helpers: file_listxattr(), filename_listxattr()
      new helpers: file_removexattr(), filename_removexattr()

Christian Göttsche (2):
      fs: rename struct xattr_ctx to kernel_xattr_ctx
      fs/xattr: add *at family syscalls

Colin Ian King (1):
      xattr: remove redundant check on variable err

Jens Axboe (1):
      io_uring: IORING_OP_F[GS]ETXATTR is fine with REQ_F_FIXED_FILE

 arch/alpha/kernel/syscalls/syscall.tbl      |   4 +
 arch/arm/tools/syscall.tbl                  |   4 +
 arch/arm64/tools/syscall_32.tbl             |   4 +
 arch/m68k/kernel/syscalls/syscall.tbl       |   4 +
 arch/microblaze/kernel/syscalls/syscall.tbl |   4 +
 arch/mips/kernel/syscalls/syscall_n32.tbl   |   4 +
 arch/mips/kernel/syscalls/syscall_n64.tbl   |   4 +
 arch/mips/kernel/syscalls/syscall_o32.tbl   |   4 +
 arch/parisc/kernel/syscalls/syscall.tbl     |   4 +
 arch/powerpc/kernel/syscalls/syscall.tbl    |   4 +
 arch/s390/kernel/syscalls/syscall.tbl       |   4 +
 arch/sh/kernel/syscalls/syscall.tbl         |   4 +
 arch/sparc/kernel/syscalls/syscall.tbl      |   4 +
 arch/x86/entry/syscalls/syscall_32.tbl      |   4 +
 arch/x86/entry/syscalls/syscall_64.tbl      |   4 +
 arch/xtensa/kernel/syscalls/syscall.tbl     |   4 +
 fs/internal.h                               |  17 +-
 fs/namei.c                                  |  34 ++-
 fs/stat.c                                   |  28 +-
 fs/xattr.c                                  | 446 ++++++++++++++++++----------
 include/asm-generic/audit_change_attr.h     |   6 +
 include/linux/fs.h                          |  10 +
 include/linux/syscalls.h                    |  13 +
 include/linux/xattr.h                       |   4 +
 include/uapi/asm-generic/unistd.h           |  11 +-
 include/uapi/linux/xattr.h                  |   7 +
 io_uring/xattr.c                            |  97 ++----
 scripts/syscall.tbl                         |   4 +
 28 files changed, 474 insertions(+), 267 deletions(-)