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