diff options
Diffstat (limited to 'tools/lib/bpf/libbpf_internal.h')
| -rw-r--r-- | tools/lib/bpf/libbpf_internal.h | 10 |
1 files changed, 3 insertions, 7 deletions
diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h index a0dcfb82e455..7e7e686008c6 100644 --- a/tools/lib/bpf/libbpf_internal.h +++ b/tools/lib/bpf/libbpf_internal.h @@ -597,13 +597,9 @@ static inline int ensure_good_fd(int fd) return fd; } -static inline int sys_dup2(int oldfd, int newfd) +static inline int sys_dup3(int oldfd, int newfd, int flags) { -#ifdef __NR_dup2 - return syscall(__NR_dup2, oldfd, newfd); -#else - return syscall(__NR_dup3, oldfd, newfd, 0); -#endif + return syscall(__NR_dup3, oldfd, newfd, flags); } /* Point *fixed_fd* to the same file that *tmp_fd* points to. @@ -614,7 +610,7 @@ static inline int reuse_fd(int fixed_fd, int tmp_fd) { int err; - err = sys_dup2(tmp_fd, fixed_fd); + err = sys_dup3(tmp_fd, fixed_fd, O_CLOEXEC); err = err < 0 ? -errno : 0; close(tmp_fd); /* clean up temporary FD */ return err; |