diff options
| -rw-r--r-- | util/oslib-posix.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/util/oslib-posix.c b/util/oslib-posix.c index 0e3ab9d959..fbd0dc8c57 100644 --- a/util/oslib-posix.c +++ b/util/oslib-posix.c @@ -95,6 +95,11 @@ bool qemu_write_pidfile(const char *path, Error **errp) while (1) { struct stat a, b; + struct flock lock = { + .l_type = F_WRLCK, + .l_whence = SEEK_SET, + .l_len = 0, + }; fd = qemu_open(path, O_CREAT | O_WRONLY, S_IRUSR | S_IWUSR); if (fd == -1) { @@ -107,7 +112,7 @@ bool qemu_write_pidfile(const char *path, Error **errp) goto fail_close; } - if (lockf(fd, F_TLOCK, 0) < 0) { + if (fcntl(fd, F_SETLK, &lock)) { error_setg_errno(errp, errno, "Cannot lock pid file"); goto fail_close; } |