syscall: remove Flock for aix/ppc64
CL 152397 removed it from gc's syscall package.
Updates golang/go#29084
Change-Id: Iac26d912851cdf34c208b9b7eb02b522c085c5ef
Reviewed-on: https://go-review.googlesource.com/c/152557
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/libgo/go/syscall/libcall_aix.go b/libgo/go/syscall/libcall_aix.go
index 5afc65e..072f92a 100644
--- a/libgo/go/syscall/libcall_aix.go
+++ b/libgo/go/syscall/libcall_aix.go
@@ -111,28 +111,6 @@
//sys Fchownat(dirfd int, path string, uid int, gid int, flags int) (err error)
//fchownat(dirfd _C_int, path *byte, owner Uid_t, group Gid_t, flags _C_int) _C_int
-// On AIX, there is no flock() system call, we emulate it.
-func Flock(fd int, op int) (err error) {
- lk := &Flock_t{}
- if (op & LOCK_UN) != 0 {
- lk.Type = F_UNLCK
- } else if (op & LOCK_EX) != 0 {
- lk.Type = F_WRLCK
- } else if (op & LOCK_SH) != 0 {
- lk.Type = F_RDLCK
- } else {
- return nil
- }
- if (op & LOCK_NB) != 0 {
- err = FcntlFlock(uintptr(fd), F_SETLK, lk)
- if err != nil && (err == EAGAIN || err == EACCES) {
- return EWOULDBLOCK
- }
- return err
- }
- return FcntlFlock(uintptr(fd), F_SETLKW, lk)
-}
-
//sys Fstatfs(fd int, buf *Statfs_t) (err error)
//fstatfs64(fd _C_int, buf *Statfs_t) _C_int
