[hurd] 09/70: mount: ignore mounted filesystems if --all is given

[Samuel Thibault]

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sthibault pushed a commit to branch upstream
in repository hurd.

commit bf827fd801c76175d268b688f3bf9c757fa9e189
Author: Justus Winter <address@hidden>
Date:   Fri Jul 5 17:13:29 2013 +0200

    mount: ignore mounted filesystems if --all is given
    
    Linux' mount utility ignores mounted filesystems if mount --all is
    invoked. This patch makes our mount do the same.
    
    utils/mount.c (main): Ignore mounted filesystems if --all is given.
---
 utils/mount.c |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/utils/mount.c b/utils/mount.c
index 73a7539..77b2138 100644
--- a/utils/mount.c
+++ b/utils/mount.c
@@ -631,6 +631,15 @@ main (int argc, char **argv)
 
               if (! match_options (&fs->mntent))
                 continue;
+
+              fsys_t mounted;
+              err = fs_fsys (fs, &mounted);
+              if (err)
+                  error (0, err, "cannot determine if %s is already mounted",
+                         fs->mntent.mnt_fsname);
+
+              if (mounted != MACH_PORT_NULL)
+                continue;
             }
            err |= do_mount (fs, remount);
          }

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