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autofs-5.1.0-beta1 - fix expire when server not responding
From: Ian Kent <ikent@redhat.com>
The change to handle expire of symlinks relies on doing a stat(2)
call to check if the path to be expired is a symlink.
But system calls that invoke a path walk on real mounts need to be
avoided during expire because if the server isn't responding they
will hang.
---
CHANGELOG | 1 +
daemon/automount.c | 7 ++++++-
2 files changed, 7 insertions(+), 1 deletion(-)
--- autofs-5.0.7.orig/CHANGELOG
+++ autofs-5.0.7/CHANGELOG
@@ -117,6 +117,7 @@
- fix incorrect max key length in defaults get_hash().
- fix xfn sets incorrect lexer state.
- fix old style key lookup.
+- fix expire when server not responding.
25/07/2012 autofs-5.0.7
=======================
--- autofs-5.0.7.orig/daemon/automount.c
+++ autofs-5.0.7/daemon/automount.c
@@ -573,9 +573,13 @@ int umount_multi(struct autofs_point *ap
debug(ap->logopt, "path %s incl %d", path, incl);
+ /* If path is a mount it can't be a symlink */
+ if (is_mounted(_PATH_MOUNTED, path, MNTS_ALL))
+ goto real_mount;
+
if (lstat(path, &st)) {
warn(ap->logopt,
- "failed to stat mount point directory %s", path);
+ "failed to stat directory or symlink %s", path);
return 1;
}
@@ -617,6 +621,7 @@ int umount_multi(struct autofs_point *ap
return 0;
}
+real_mount:
is_autofs_fs = 0;
if (master_find_submount(ap, path))
is_autofs_fs = 1;