[git pull] vfs.git mount compat series

[Al Viro]

	The last remnants of mount(2) compat buried.  Buried into NFS, that is;
generally I'm less enthusiastic about "let's use in_compat_syscall() deep in
call chain" kind of approach than Christoph seems to be, but in this case it's
warranted - that crap had been an NFS-specific wart, hopefully not to be repeated
in any other filesystems (read: any new filesystem introducing non-text mount
options will get NAKed even if it doesn't fuck the layout up).  Not worth trying
to grow an infrastructure that would avoid that use of in_compat_syscall()...
	[Note: alpha-related tail of the series got dropped]

The following changes since commit 9123e3a74ec7b934a4a099e98af6a61c2f80bbf5:

  Linux 5.9-rc1 (2020-08-16 13:04:57 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs.git compat.mount

for you to fetch changes up to 028abd9222df0cf5855dab5014a5ebaf06f90565:

  fs: remove compat_sys_mount (2020-09-22 23:45:57 -0400)

----------------------------------------------------------------
Christoph Hellwig (3):
      nfs: simplify nfs4_parse_monolithic
      fs,nfs: lift compat nfs4 mount data handling into the nfs code
      fs: remove compat_sys_mount

 arch/arm64/include/asm/unistd32.h                  |   2 +-
 arch/mips/kernel/syscalls/syscall_n32.tbl          |   2 +-
 arch/mips/kernel/syscalls/syscall_o32.tbl          |   2 +-
 arch/parisc/kernel/syscalls/syscall.tbl            |   2 +-
 arch/powerpc/kernel/syscalls/syscall.tbl           |   2 +-
 arch/s390/kernel/syscalls/syscall.tbl              |   2 +-
 arch/sparc/kernel/syscalls/syscall.tbl             |   2 +-
 arch/x86/entry/syscalls/syscall_32.tbl             |   2 +-
 fs/Makefile                                        |   1 -
 fs/compat.c                                        | 132 --------------
 fs/internal.h                                      |   3 -
 fs/namespace.c                                     |   4 +-
 fs/nfs/fs_context.c                                | 195 +++++++++++++--------
 include/linux/compat.h                             |   6 -
 include/uapi/asm-generic/unistd.h                  |   2 +-
 tools/include/uapi/asm-generic/unistd.h            |   2 +-
 tools/perf/arch/powerpc/entry/syscalls/syscall.tbl |   2 +-
 tools/perf/arch/s390/entry/syscalls/syscall.tbl    |   2 +-
 18 files changed, 138 insertions(+), 227 deletions(-)
 delete mode 100644 fs/compat.c