block: move fcntl_setfl()

It is only used by block/file-posix.c, move it there.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/block/file-posix.c b/block/file-posix.c
index bfd9b21111..48cd096624 100644
--- a/block/file-posix.c
+++ b/block/file-posix.c
@@ -1022,6 +1022,21 @@ static int raw_handle_perm_lock(BlockDriverState *bs,
     return ret;
 }
 
+/* Sets a specific flag */
+static int fcntl_setfl(int fd, int flag)
+{
+    int flags;
+
+    flags = fcntl(fd, F_GETFL);
+    if (flags == -1) {
+        return -errno;
+    }
+    if (fcntl(fd, F_SETFL, flags | flag) == -1) {
+        return -errno;
+    }
+    return 0;
+}
+
 static int raw_reconfigure_getfd(BlockDriverState *bs, int flags,
                                  int *open_flags, uint64_t perm, bool force_dup,
                                  Error **errp)