From cd794e79f999b3b7b639c4fe89ea1af23ed362f6 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Fri, 7 Apr 2006 11:25:21 +0000
Subject: r14959: allow change notify to be disabled completely using
 notify:enable=False (This used to be commit
 2a8f093105f3047a3697f29aadcc9c48c6ac88e1)

---
 source4/ntvfs/common/notify.c   | 19 +++++++++++++++++++
 source4/ntvfs/posix/vfs_posix.c |  4 +---
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/source4/ntvfs/common/notify.c b/source4/ntvfs/common/notify.c
index 0c264de88f..452b8188f0 100644
--- a/source4/ntvfs/common/notify.c
+++ b/source4/ntvfs/common/notify.c
@@ -83,6 +83,10 @@ struct notify_context *notify_init(TALLOC_CTX *mem_ctx, uint32_t server,
 	char *path;
 	struct notify_context *notify;
 
+	if (lp_parm_bool(snum, "notify", "enable", True) != True) {
+		return NULL;
+	}
+
 	notify = talloc(mem_ctx, struct notify_context);
 	if (notify == NULL) {
 		return NULL;
@@ -339,6 +343,11 @@ NTSTATUS notify_add(struct notify_context *notify, struct notify_entry *e0,
 	size_t len;
 	int depth;
 
+	/* see if change notify is enabled at all */
+	if (notify == NULL) {
+		return NT_STATUS_NOT_IMPLEMENTED;
+	}
+
 	status = notify_lock(notify);
 	NT_STATUS_NOT_OK_RETURN(status);
 
@@ -410,6 +419,11 @@ NTSTATUS notify_remove(struct notify_context *notify, void *private)
 	int i, depth;
 	struct notify_depth *d;
 
+	/* see if change notify is enabled at all */
+	if (notify == NULL) {
+		return NT_STATUS_NOT_IMPLEMENTED;
+	}
+
 	for (listel=notify->list;listel;listel=listel->next) {
 		if (listel->private == private) {
 			DLIST_REMOVE(notify->list, listel);
@@ -552,6 +566,11 @@ void notify_trigger(struct notify_context *notify,
 	int depth;
 	const char *p, *next_p;
 
+	/* see if change notify is enabled at all */
+	if (notify == NULL) {
+		return;
+	}
+
 	status = notify_load(notify);
 	if (!NT_STATUS_IS_OK(status)) {
 		return;
diff --git a/source4/ntvfs/posix/vfs_posix.c b/source4/ntvfs/posix/vfs_posix.c
index 3e141219f4..dd8c3fe81f 100644
--- a/source4/ntvfs/posix/vfs_posix.c
+++ b/source4/ntvfs/posix/vfs_posix.c
@@ -185,14 +185,12 @@ static NTSTATUS pvfs_connect(struct ntvfs_module_context *ntvfs,
 		return NT_STATUS_INTERNAL_DB_CORRUPTION;
 	}
 
+	/* allow this to be NULL - we just disable change notify */
 	pvfs->notify_context = notify_init(pvfs, 
 					   pvfs->ntvfs->ctx->server_id,  
 					   pvfs->ntvfs->ctx->msg_ctx, 
 					   event_context_find(pvfs),
 					   pvfs->ntvfs->ctx->config.snum);
-	if (pvfs->notify_context == NULL) {
-		return NT_STATUS_INTERNAL_DB_CORRUPTION;
-	}
 
 	pvfs->sidmap = sidmap_open(pvfs);
 	if (pvfs->sidmap == NULL) {
-- 
cgit