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author | 2020-05-14 16:44:25 +0200 | |
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committer | 2020-05-14 16:44:25 +0200 | |
commit | c8ffd8bcdd28296a198f237cc595148a8d4adfbe (patch) | |
tree | 71ce857ad8d9feea14cfe9619013e84a88bb374c /arch/xtensa | |
parent | vfs: don't parse "silent" option (diff) | |
download | linux-c8ffd8bcdd28296a198f237cc595148a8d4adfbe.tar.gz linux-c8ffd8bcdd28296a198f237cc595148a8d4adfbe.tar.bz2 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/xtensa')
-rw-r--r-- | arch/xtensa/kernel/syscalls/syscall.tbl | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/xtensa/kernel/syscalls/syscall.tbl b/arch/xtensa/kernel/syscalls/syscall.tbl index 85a9ab1bc04d..69d0d73876b3 100644 --- a/arch/xtensa/kernel/syscalls/syscall.tbl +++ b/arch/xtensa/kernel/syscalls/syscall.tbl @@ -408,3 +408,4 @@ 435 common clone3 sys_clone3 437 common openat2 sys_openat2 438 common pidfd_getfd sys_pidfd_getfd +439 common faccessat2 sys_faccessat2 |