kernel_optimize_test/arch/x86/entry
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
..
syscalls vfs: add faccessat2 syscall 2020-05-14 16:44:25 +02:00
vdso sparc,x86: vdso: remove meaningless undefining CONFIG_OPTIMIZE_INLINING 2020-04-07 10:43:42 -07:00
vsyscall y2038: syscall implementation cleanups 2019-12-01 14:00:59 -08:00
calling.h context_tracking: Rename context_tracking_is_enabled() => context_tracking_enabled() 2019-10-29 10:01:12 +01:00
common.c Merge branch 'x86-cleanups-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2020-03-31 11:04:05 -07:00
entry_32.S x86/entry/64: Trace irqflags unconditionally as ON when returning to user space 2020-03-10 13:56:32 +01:00
entry_64_compat.S x86/asm: Change all ENTRY+ENDPROC to SYM_FUNC_* 2019-10-18 11:58:33 +02:00
entry_64.S x86/entry/64: Trace irqflags unconditionally as ON when returning to user space 2020-03-10 13:56:32 +01:00
Makefile x86/entry/64: Split X32 syscall table into its own file 2020-03-21 16:03:21 +01:00
syscall_32.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
syscall_64.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
syscall_x32.c x86/entry: Drop asmlinkage from syscalls 2020-03-21 16:03:25 +01:00
thunk_32.S x86/entry: Rename ___preempt_schedule 2020-03-21 16:03:53 +01:00
thunk_64.S x86/entry: Rename ___preempt_schedule 2020-03-21 16:03:53 +01:00