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| author |   Miklos Szeredi <mszeredi@redhat.com> | 2020-05-14 16:44:25 +0200 |
|---|---|---|
| committer | Miklos Szeredi <mszeredi@redhat.com> | 2020-05-14 16:44:25 +0200 |
| commit | c8ffd8bcdd28296a198f237cc595148a8d4adfbe (patch) | |
| tree | 71ce857ad8d9feea14cfe9619013e84a88bb374c /arch/x86/entry/syscalls/syscall_32.tbl | |
| parent | vfs: don't parse "silent" option (diff) | |
| download | wireguard-linux-c8ffd8bcdd28296a198f237cc595148a8d4adfbe.tar.xz wireguard-linux-c8ffd8bcdd28296a198f237cc595148a8d4adfbe.zip | |
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>
Diffstat (limited to 'arch/x86/entry/syscalls/syscall_32.tbl')
| -rw-r--r-- | arch/x86/entry/syscalls/syscall_32.tbl | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index 54581ac671b4..d8f8a1a69ed1 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -442,3 +442,4 @@ 435 i386 clone3 sys_clone3 437 i386 openat2 sys_openat2 438 i386 pidfd_getfd sys_pidfd_getfd +439 i386 faccessat2 sys_faccessat2 |