dovecot-2.0: mountpoint_get(): Skip rootfs mounts with Linux.

[dovecot at dovecot.org]

details:   http://hg.dovecot.org/dovecot-2.0/rev/3f5c53f84d0a
changeset: 11966:3f5c53f84d0a
user:      Timo Sirainen <tss at iki.fi>
date:      Mon Aug 09 17:35:08 2010 +0100
description:
mountpoint_get(): Skip rootfs mounts with Linux.
Fixes fs quota for such systems. Patch by Patrick McLean.

diffstat:

 src/lib/mountpoint.c |  8 +++++++-
 1 files changed, 7 insertions(+), 1 deletions(-)

diffs (25 lines):

diff -r 18d95a2d0aba -r 3f5c53f84d0a src/lib/mountpoint.c
--- a/src/lib/mountpoint.c	Mon Aug 09 16:58:33 2010 +0100
+++ b/src/lib/mountpoint.c	Mon Aug 09 17:35:08 2010 +0100
@@ -47,6 +47,11 @@
 #  define MNTTYPE_NFS "nfs"
 #endif
 
+/* Linux sometimes has mtab entry for "rootfs" as well as the real root
+   entry. Skip the rootfs. */
+#ifndef MNTTYPE_ROOTFS
+#  define MNTTYPE_ROOTFS "rootfs"
+#endif
 
 int mountpoint_get(const char *path, pool_t pool, struct mountpoint *point_r)
 {
@@ -191,7 +196,8 @@
 	}
 	while ((ent = getmntent(f)) != NULL) {
 		if (strcmp(ent->mnt_type, MNTTYPE_SWAP) == 0 ||
-		    strcmp(ent->mnt_type, MNTTYPE_IGNORE) == 0)
+		    strcmp(ent->mnt_type, MNTTYPE_IGNORE) == 0 ||
+		    strcmp(ent->mnt_type, MNTTYPE_ROOTFS) == 0)
 			continue;
 
 		if (stat(ent->mnt_dir, &st2) == 0 &&