Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/fs/afs/callback.c b/fs/afs/callback.c
new file mode 100644
index 0000000..2fd62f8
--- /dev/null
+++ b/fs/afs/callback.c
@@ -0,0 +1,168 @@
+/*
+ * Copyright (c) 2002 Red Hat, Inc. All rights reserved.
+ *
+ * This software may be freely redistributed under the terms of the
+ * GNU General Public License.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Authors: David Woodhouse <dwmw2@cambridge.redhat.com>
+ * David Howells <dhowells@redhat.com>
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include "server.h"
+#include "vnode.h"
+#include "internal.h"
+
+/*****************************************************************************/
+/*
+ * allow the fileserver to request callback state (re-)initialisation
+ */
+int SRXAFSCM_InitCallBackState(struct afs_server *server)
+{
+ struct list_head callbacks;
+
+ _enter("%p", server);
+
+ INIT_LIST_HEAD(&callbacks);
+
+ /* transfer the callback list from the server to a temp holding area */
+ spin_lock(&server->cb_lock);
+
+ list_add(&callbacks, &server->cb_promises);
+ list_del_init(&server->cb_promises);
+
+ /* munch our way through the list, grabbing the inode, dropping all the
+ * locks and regetting them in the right order
+ */
+ while (!list_empty(&callbacks)) {
+ struct afs_vnode *vnode;
+ struct inode *inode;
+
+ vnode = list_entry(callbacks.next, struct afs_vnode, cb_link);
+ list_del_init(&vnode->cb_link);
+
+ /* try and grab the inode - may fail */
+ inode = igrab(AFS_VNODE_TO_I(vnode));
+ if (inode) {
+ int release = 0;
+
+ spin_unlock(&server->cb_lock);
+ spin_lock(&vnode->lock);
+
+ if (vnode->cb_server == server) {
+ vnode->cb_server = NULL;
+ afs_kafstimod_del_timer(&vnode->cb_timeout);
+ spin_lock(&afs_cb_hash_lock);
+ list_del_init(&vnode->cb_hash_link);
+ spin_unlock(&afs_cb_hash_lock);
+ release = 1;
+ }
+
+ spin_unlock(&vnode->lock);
+
+ iput(inode);
+ afs_put_server(server);
+
+ spin_lock(&server->cb_lock);
+ }
+ }
+
+ spin_unlock(&server->cb_lock);
+
+ _leave(" = 0");
+ return 0;
+} /* end SRXAFSCM_InitCallBackState() */
+
+/*****************************************************************************/
+/*
+ * allow the fileserver to break callback promises
+ */
+int SRXAFSCM_CallBack(struct afs_server *server, size_t count,
+ struct afs_callback callbacks[])
+{
+ _enter("%p,%u,", server, count);
+
+ for (; count > 0; callbacks++, count--) {
+ struct afs_vnode *vnode = NULL;
+ struct inode *inode = NULL;
+ int valid = 0;
+
+ _debug("- Fid { vl=%08x n=%u u=%u } CB { v=%u x=%u t=%u }",
+ callbacks->fid.vid,
+ callbacks->fid.vnode,
+ callbacks->fid.unique,
+ callbacks->version,
+ callbacks->expiry,
+ callbacks->type
+ );
+
+ /* find the inode for this fid */
+ spin_lock(&afs_cb_hash_lock);
+
+ list_for_each_entry(vnode,
+ &afs_cb_hash(server, &callbacks->fid),
+ cb_hash_link) {
+ if (memcmp(&vnode->fid, &callbacks->fid,
+ sizeof(struct afs_fid)) != 0)
+ continue;
+
+ /* right vnode, but is it same server? */
+ if (vnode->cb_server != server)
+ break; /* no */
+
+ /* try and nail the inode down */
+ inode = igrab(AFS_VNODE_TO_I(vnode));
+ break;
+ }
+
+ spin_unlock(&afs_cb_hash_lock);
+
+ if (inode) {
+ /* we've found the record for this vnode */
+ spin_lock(&vnode->lock);
+ if (vnode->cb_server == server) {
+ /* the callback _is_ on the calling server */
+ vnode->cb_server = NULL;
+ valid = 1;
+
+ afs_kafstimod_del_timer(&vnode->cb_timeout);
+ vnode->flags |= AFS_VNODE_CHANGED;
+
+ spin_lock(&server->cb_lock);
+ list_del_init(&vnode->cb_link);
+ spin_unlock(&server->cb_lock);
+
+ spin_lock(&afs_cb_hash_lock);
+ list_del_init(&vnode->cb_hash_link);
+ spin_unlock(&afs_cb_hash_lock);
+ }
+ spin_unlock(&vnode->lock);
+
+ if (valid) {
+ invalidate_remote_inode(inode);
+ afs_put_server(server);
+ }
+ iput(inode);
+ }
+ }
+
+ _leave(" = 0");
+ return 0;
+} /* end SRXAFSCM_CallBack() */
+
+/*****************************************************************************/
+/*
+ * allow the fileserver to see if the cache manager is still alive
+ */
+int SRXAFSCM_Probe(struct afs_server *server)
+{
+ _debug("SRXAFSCM_Probe(%p)\n", server);
+ return 0;
+} /* end SRXAFSCM_Probe() */