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core: fix initialization of disjoint xlator graph

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if graph has disjoint subgraphs, send GF_EVENT_PARENT_UP to every top node

Signed-off-by: Anand V. Avati <avati@blackhole.gluster.com>
Signed-off-by: Anand V. Avati <avati@dev.gluster.com>

BUG: 272 (Server backend storage hang should not cause the mount point to hang)
URL: http://bugs.gluster.com/cgi-bin/bugzilla3/show_bug.cgi?id=272
This commit is contained in:
Anand Avati 2010-01-23 05:13:24 +00:00 committed by Anand V. Avati
parent 95dba6f085
commit 9c53d5daf4
2 changed files with 28 additions and 1 deletions
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27
glusterfsd/src/glusterfsd.c
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@ -606,6 +606,31 @@ _xlator_graph_init (xlator_t *xl)
return ret;
}
int
glusterfs_graph_parent_up (xlator_t *graph)
{
xlator_t *trav = NULL;
int ret = -1;
trav = graph;
while (trav->prev)
trav = trav->prev;
while (trav) {
if (!xlator_has_parent (trav)) {
ret = trav->notify (trav, GF_EVENT_PARENT_UP, trav);
}
if (ret)
break;
trav = trav->next;
}
return ret;
}
int
glusterfs_graph_init (xlator_t *graph, int fuse)
{
@ -1366,7 +1391,7 @@ main (int argc, char *argv[])
}
/* Send PARENT_UP notify to all the translators now */
graph->notify (graph, GF_EVENT_PARENT_UP, ctx->graph);
glusterfs_graph_parent_up (graph);
gf_log ("glusterfs", GF_LOG_NORMAL, "Successfully started");

2
libglusterfs/src/xlator.h
View File

@ -926,6 +926,8 @@ struct _xlator {
void *private;
};
#define xlator_has_parent(xl) (xl->parents != NULL)
int validate_xlator_volume_options (xlator_t *xl, volume_option_t *opt);
int32_t xlator_set_type (xlator_t *xl, const char *type);