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-rw-r--r--libglusterfs/src/inode.c48
1 files changed, 48 insertions, 0 deletions
diff --git a/libglusterfs/src/inode.c b/libglusterfs/src/inode.c
index e32eddb5d1c..a0088c03c55 100644
--- a/libglusterfs/src/inode.c
+++ b/libglusterfs/src/inode.c
@@ -950,6 +950,54 @@ inode_forget (inode_t *inode, uint64_t nlookup)
return 0;
}
+/*
+ * Invalidate an inode. This is invoked when a translator decides that an inode's
+ * cache is no longer valid. Any translator interested in taking action in this
+ * situation can define the invalidate callback.
+ */
+int
+inode_invalidate(inode_t *inode)
+{
+ int ret = 0;
+ xlator_t *xl = NULL;
+ xlator_t *old_THIS = NULL;
+
+ if (!inode) {
+ gf_log_callingfn(THIS->name, GF_LOG_WARNING, "inode not found");
+ return -1;
+ }
+
+ /*
+ * The master xlator is not in the graph but it can define an invalidate
+ * handler.
+ */
+ xl = inode->table->xl->ctx->master;
+ if (xl && xl->cbks->invalidate) {
+ old_THIS = THIS;
+ THIS = xl;
+ ret = xl->cbks->invalidate(xl, inode);
+ THIS = old_THIS;
+ if (ret)
+ return ret;
+ }
+
+ xl = inode->table->xl->graph->first;
+ while (xl) {
+ old_THIS = THIS;
+ THIS = xl;
+ if (xl->cbks->invalidate)
+ ret = xl->cbks->invalidate(xl, inode);
+ THIS = old_THIS;
+
+ if (ret)
+ break;
+
+ xl = xl->next;
+ }
+
+ return ret;
+}
+
static void
__inode_unlink (inode_t *inode, inode_t *parent, const char *name)