File util-linux-mount-detect-ro-mount.patch of Package util-linux

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File util-linux-mount-detect-ro-mount.patch of Package util-linux (Revision d65136945a1eec7da4dfd58e32bb0d2f)

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From 81694f8c60dffb7851f941e69a1b79bc573ace53 Mon Sep 17 00:00:00 2001
From: Petr Uzel <petr.uzel@suse.cz>
Date: Fri, 21 May 2010 15:19:31 +0200
Subject: [PATCH] mount: detect when kernel silently adds MS_RDONLY flag

Linux kernel can silently add MS_RDONLY flag when mounting file system that
does not have write support. Check this to avoid 'ro' in /proc/mounts and 'rw'
in mtab.

[kzak@redhat.com: - don't check for 'ro' for MS_MOVE and MS_PROPAGATION]

Reported-by: James Foris <jim.foris@med.ge.com>
Signed-off-by: Petr Uzel <petr.uzel@suse.cz>
Signed-off-by: Karel Zak <kzak@redhat.com>
---
 mount/mount.c |   12 ++++++++++++
 1 files changed, 12 insertions(+), 0 deletions(-)

Index: util-linux-ng-2.17.2/mount/mount.c
===================================================================
--- util-linux-ng-2.17.2.orig/mount/mount.c	2010-05-28 15:22:47.000000000 +0200
+++ util-linux-ng-2.17.2/mount/mount.c	2010-05-28 15:23:03.000000000 +0200
@@ -1388,6 +1388,18 @@ mount_retry:
       flags &= ~MS_RDONLY;
   }
 
+  /* Kernel can silently add MS_RDONLY flag when mounting file system that
+   * does not have write support. Check this to avoid 'ro' in /proc/mounts
+   * and 'rw' in mtab.
+   */
+  if (!fake && mnt5_res == 0 &&
+      !(flags & MS_RDONLY) && !(flags & MS_PROPAGATION) && !(flags & MS_MOVE) &&
+      is_readonly(node)) {
+
+      printf(_("mount: warning: %s seems to be mounted read-only.\n"), node);
+      flags |= MS_RDONLY;
+  }
+
   if (fake || mnt5_res == 0) {
       /* Mount succeeded, report this (if verbose) and write mtab entry.  */

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File util-linux-mount-detect-ro-mount.patch of Package util-linux (Revision d65136945a1eec7da4dfd58e32bb0d2f)

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