linux_dsm_epyc7002/arch/s390/kernel/syscalls
Miklos Szeredi c8ffd8bcdd vfs: add faccessat2 syscall
POSIX defines faccessat() as having a fourth "flags" argument, while the
linux syscall doesn't have it.  Glibc tries to emulate AT_EACCESS and
AT_SYMLINK_NOFOLLOW, but AT_EACCESS emulation is broken.

Add a new faccessat(2) syscall with the added flags argument and implement
both flags.

The value of AT_EACCESS is defined in glibc headers to be the same as
AT_REMOVEDIR.  Use this value for the kernel interface as well, together
with the explanatory comment.

Also add AT_EMPTY_PATH support, which is not documented by POSIX, but can
be useful and is trivial to implement.

Signed-off-by: Miklos Szeredi <mszeredi@redhat.com>
2020-05-14 16:44:25 +02:00
..
Makefile kbuild: use assignment instead of define ... endef for filechk_* rules 2019-01-06 10:22:35 +09:00
syscall.tbl vfs: add faccessat2 syscall 2020-05-14 16:44:25 +02:00
syscalltbl s390/syscalls: add syscalltbl script 2018-01-23 07:36:51 +01:00