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
