mount.nfs: Fix background mounts

The new mount.nfs helper does not support background mounts.  Add support
for background mounts.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Neil Brown <neilb@suse.de>

diff --git a/utils/mount/mount.c b/utils/mount/mount.c
index c0c397168b4b91b08f94822f6183d4ca493ace38..a2325196160067ef6129fe15da05543cf414558b 100644 (file)
--- a/utils/mount/mount.c
+++ b/utils/mount/mount.c
@@ -49,6 +49,9 @@ int nomtab;
 int verbose;
 int sloppy;
 
+#define FOREGROUND     (0)
+#define BACKGROUND     (1)
+
 static struct option longopts[] = {
   { "fake", 0, 0, 'f' },
   { "help", 0, 0, 'h' },
@@ -518,7 +521,26 @@ int main(int argc, char *argv[])
        }
 
        mnt_err = try_mount(spec, mount_point, flags, fs_type, &extra_opts,
-                               mount_opts, fake, nomtab, 0);
+                               mount_opts, fake, nomtab, FOREGROUND);
+       if (mnt_err == EX_BG) {
+               printf(_("mount: backgrounding \"%s\"\n"), spec);
+               fflush(stdout);
+
+               /*
+                * Parent exits immediately with success.  Make
+                * sure not to free "mount_point"
+                */
+               if (fork() > 0)
+                       exit(0);
+
+               mnt_err = try_mount(spec, mount_point, flags, fs_type,
+                                       &extra_opts, mount_opts, fake,
+                                       nomtab, BACKGROUND);
+               if (verbose && mnt_err)
+                       printf(_("%s: giving up \"%s\"\n"),
+                               progname, spec);
+               exit(0);
+       }
 
 out:
        free(mount_point);