1350def07e
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=2056321 There is a case where a multi-mount tree can be be umounted when it's still in use. This MR resolves one (hopefully the only remaining one) of those cases. Resolves: rhbz#2056321 Signed-off-by: Ian Kent ikent@redhat.com
78 lines
2.6 KiB
Diff
78 lines
2.6 KiB
Diff
autofs-5.1.8 - remove nonstrict parameter from tree_mapent_umount_offsets()
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From: Ian Kent <raven@themaw.net>
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The nonstrict parameter of tree_mapent_umount_offsets() ins't useful
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because if a real mount at the base of a sub-tree fails to umount all
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we can do is re-instate the offset mounts under it which must succeed
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for the mount tree to remain useful.
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Signed-off-by: Ian Kent <raven@themaw.net>
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---
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CHANGELOG | 1 +
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daemon/automount.c | 2 +-
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include/mounts.h | 2 +-
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lib/mounts.c | 6 +++---
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4 files changed, 6 insertions(+), 5 deletions(-)
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--- autofs-5.1.7.orig/CHANGELOG
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+++ autofs-5.1.7/CHANGELOG
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@@ -94,6 +94,7 @@
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- fix memory leak in xdr_exports().
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- avoid calling pthread_getspecific() with NULL key_thread_attempt_id.
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- fix sysconf(3) return handling.
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+- remove nonstrict parameter from tree_mapent_umount_offsets().
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25/01/2021 autofs-5.1.7
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- make bind mounts propagation slave by default.
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--- autofs-5.1.7.orig/daemon/automount.c
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+++ autofs-5.1.7/daemon/automount.c
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@@ -554,7 +554,7 @@ static int umount_subtree_mounts(struct
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struct mapent *tmp;
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int ret;
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- ret = tree_mapent_umount_offsets(me, 1);
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+ ret = tree_mapent_umount_offsets(me);
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if (!ret) {
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warn(ap->logopt,
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"some offset mounts still present under %s", path);
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--- autofs-5.1.7.orig/include/mounts.h
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+++ autofs-5.1.7/include/mounts.h
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@@ -182,7 +182,7 @@ int tree_mapent_add_node(struct mapent_c
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int tree_mapent_delete_offsets(struct mapent_cache *mc, const char *key);
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void tree_mapent_cleanup_offsets(struct mapent *oe);
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int tree_mapent_mount_offsets(struct mapent *oe, int nonstrict);
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-int tree_mapent_umount_offsets(struct mapent *oe, int nonstrict);
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+int tree_mapent_umount_offsets(struct mapent *oe);
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int unlink_mount_tree(struct autofs_point *ap, const char *mp);
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void free_mnt_list(struct mnt_list *list);
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int is_mounted(const char *mp, unsigned int type);
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--- autofs-5.1.7.orig/lib/mounts.c
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+++ autofs-5.1.7/lib/mounts.c
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@@ -1843,7 +1843,7 @@ static int tree_mapent_umount_offset(str
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* Check for and umount subtree offsets resulting from
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* nonstrict mount fail.
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*/
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- ret = tree_mapent_umount_offsets(oe, ctxt->strict);
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+ ret = tree_mapent_umount_offsets(oe);
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if (!ret)
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return 0;
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@@ -1975,14 +1975,14 @@ static int tree_mapent_umount_offsets_wo
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return tree_mapent_umount_offset(oe, ptr);
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}
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-int tree_mapent_umount_offsets(struct mapent *oe, int nonstrict)
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+int tree_mapent_umount_offsets(struct mapent *oe)
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{
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struct tree_node *base = MAPENT_NODE(oe);
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struct autofs_point *ap = oe->mc->ap;
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struct traverse_subtree_context ctxt = {
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.ap = ap,
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.base = base,
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- .strict = !nonstrict,
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+ .strict = 1,
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};
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int ret;
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