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-rw-r--r--fs/afs/afs_cm.h3
-rw-r--r--fs/afs/cell.c2
-rw-r--r--fs/afs/cmservice.c133
-rw-r--r--fs/afs/proc.c33
4 files changed, 137 insertions, 34 deletions
diff --git a/fs/afs/afs_cm.h b/fs/afs/afs_cm.h
index 7b4d4fab4c8..255f5dd6040 100644
--- a/fs/afs/afs_cm.h
+++ b/fs/afs/afs_cm.h
@@ -24,7 +24,8 @@ enum AFS_CM_Operations {
CBGetXStatsVersion = 209, /* get version of extended statistics */
CBGetXStats = 210, /* get contents of extended statistics data */
CBInitCallBackState3 = 213, /* initialise callback state, version 3 */
- CBGetCapabilities = 65538, /* get client capabilities */
+ CBProbeUuid = 214, /* check the client hasn't rebooted */
+ CBTellMeAboutYourself = 65538, /* get client capabilities */
};
#define AFS_CAP_ERROR_TRANSLATION 0x1
diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 584bb0f9c36..5e1df14e16b 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -20,7 +20,7 @@
DECLARE_RWSEM(afs_proc_cells_sem);
LIST_HEAD(afs_proc_cells);
-static struct list_head afs_cells = LIST_HEAD_INIT(afs_cells);
+static LIST_HEAD(afs_cells);
static DEFINE_RWLOCK(afs_cells_lock);
static DECLARE_RWSEM(afs_cells_sem); /* add/remove serialisation */
static DECLARE_WAIT_QUEUE_HEAD(afs_cells_freeable_wq);
diff --git a/fs/afs/cmservice.c b/fs/afs/cmservice.c
index 47b71c8947f..eb765489164 100644
--- a/fs/afs/cmservice.c
+++ b/fs/afs/cmservice.c
@@ -26,8 +26,9 @@ static int afs_deliver_cb_init_call_back_state3(struct afs_call *,
struct sk_buff *, bool);
static int afs_deliver_cb_probe(struct afs_call *, struct sk_buff *, bool);
static int afs_deliver_cb_callback(struct afs_call *, struct sk_buff *, bool);
-static int afs_deliver_cb_get_capabilities(struct afs_call *, struct sk_buff *,
- bool);
+static int afs_deliver_cb_probe_uuid(struct afs_call *, struct sk_buff *, bool);
+static int afs_deliver_cb_tell_me_about_yourself(struct afs_call *,
+ struct sk_buff *, bool);
static void afs_cm_destructor(struct afs_call *);
/*
@@ -71,11 +72,21 @@ static const struct afs_call_type afs_SRXCBProbe = {
};
/*
- * CB.GetCapabilities operation type
+ * CB.ProbeUuid operation type
*/
-static const struct afs_call_type afs_SRXCBGetCapabilites = {
- .name = "CB.GetCapabilities",
- .deliver = afs_deliver_cb_get_capabilities,
+static const struct afs_call_type afs_SRXCBProbeUuid = {
+ .name = "CB.ProbeUuid",
+ .deliver = afs_deliver_cb_probe_uuid,
+ .abort_to_error = afs_abort_to_error,
+ .destructor = afs_cm_destructor,
+};
+
+/*
+ * CB.TellMeAboutYourself operation type
+ */
+static const struct afs_call_type afs_SRXCBTellMeAboutYourself = {
+ .name = "CB.TellMeAboutYourself",
+ .deliver = afs_deliver_cb_tell_me_about_yourself,
.abort_to_error = afs_abort_to_error,
.destructor = afs_cm_destructor,
};
@@ -103,8 +114,8 @@ bool afs_cm_incoming_call(struct afs_call *call)
case CBProbe:
call->type = &afs_SRXCBProbe;
return true;
- case CBGetCapabilities:
- call->type = &afs_SRXCBGetCapabilites;
+ case CBTellMeAboutYourself:
+ call->type = &afs_SRXCBTellMeAboutYourself;
return true;
default:
return false;
@@ -393,9 +404,105 @@ static int afs_deliver_cb_probe(struct afs_call *call, struct sk_buff *skb,
}
/*
+ * allow the fileserver to quickly find out if the fileserver has been rebooted
+ */
+static void SRXAFSCB_ProbeUuid(struct work_struct *work)
+{
+ struct afs_call *call = container_of(work, struct afs_call, work);
+ struct afs_uuid *r = call->request;
+
+ struct {
+ __be32 match;
+ } reply;
+
+ _enter("");
+
+
+ if (memcmp(r, &afs_uuid, sizeof(afs_uuid)) == 0)
+ reply.match = htonl(0);
+ else
+ reply.match = htonl(1);
+
+ afs_send_simple_reply(call, &reply, sizeof(reply));
+ _leave("");
+}
+
+/*
+ * deliver request data to a CB.ProbeUuid call
+ */
+static int afs_deliver_cb_probe_uuid(struct afs_call *call, struct sk_buff *skb,
+ bool last)
+{
+ struct afs_uuid *r;
+ unsigned loop;
+ __be32 *b;
+ int ret;
+
+ _enter("{%u},{%u},%d", call->unmarshall, skb->len, last);
+
+ if (skb->len > 0)
+ return -EBADMSG;
+ if (!last)
+ return 0;
+
+ switch (call->unmarshall) {
+ case 0:
+ call->offset = 0;
+ call->buffer = kmalloc(11 * sizeof(__be32), GFP_KERNEL);
+ if (!call->buffer)
+ return -ENOMEM;
+ call->unmarshall++;
+
+ case 1:
+ _debug("extract UUID");
+ ret = afs_extract_data(call, skb, last, call->buffer,
+ 11 * sizeof(__be32));
+ switch (ret) {
+ case 0: break;
+ case -EAGAIN: return 0;
+ default: return ret;
+ }
+
+ _debug("unmarshall UUID");
+ call->request = kmalloc(sizeof(struct afs_uuid), GFP_KERNEL);
+ if (!call->request)
+ return -ENOMEM;
+
+ b = call->buffer;
+ r = call->request;
+ r->time_low = ntohl(b[0]);
+ r->time_mid = ntohl(b[1]);
+ r->time_hi_and_version = ntohl(b[2]);
+ r->clock_seq_hi_and_reserved = ntohl(b[3]);
+ r->clock_seq_low = ntohl(b[4]);
+
+ for (loop = 0; loop < 6; loop++)
+ r->node[loop] = ntohl(b[loop + 5]);
+
+ call->offset = 0;
+ call->unmarshall++;
+
+ case 2:
+ _debug("trailer");
+ if (skb->len != 0)
+ return -EBADMSG;
+ break;
+ }
+
+ if (!last)
+ return 0;
+
+ call->state = AFS_CALL_REPLYING;
+
+ INIT_WORK(&call->work, SRXAFSCB_ProbeUuid);
+ schedule_work(&call->work);
+ return 0;
+}
+
+/*
* allow the fileserver to ask about the cache manager's capabilities
*/
-static void SRXAFSCB_GetCapabilities(struct work_struct *work)
+static void SRXAFSCB_TellMeAboutYourself(struct work_struct *work)
{
struct afs_interface *ifs;
struct afs_call *call = container_of(work, struct afs_call, work);
@@ -456,10 +563,10 @@ static void SRXAFSCB_GetCapabilities(struct work_struct *work)
}
/*
- * deliver request data to a CB.GetCapabilities call
+ * deliver request data to a CB.TellMeAboutYourself call
*/
-static int afs_deliver_cb_get_capabilities(struct afs_call *call,
- struct sk_buff *skb, bool last)
+static int afs_deliver_cb_tell_me_about_yourself(struct afs_call *call,
+ struct sk_buff *skb, bool last)
{
_enter(",{%u},%d", skb->len, last);
@@ -471,7 +578,7 @@ static int afs_deliver_cb_get_capabilities(struct afs_call *call,
/* no unmarshalling required */
call->state = AFS_CALL_REPLYING;
- INIT_WORK(&call->work, SRXAFSCB_GetCapabilities);
+ INIT_WORK(&call->work, SRXAFSCB_TellMeAboutYourself);
schedule_work(&call->work);
return 0;
}
diff --git a/fs/afs/proc.c b/fs/afs/proc.c
index 846c7615ac9..9f7d1ae7026 100644
--- a/fs/afs/proc.c
+++ b/fs/afs/proc.c
@@ -41,6 +41,7 @@ static const struct file_operations afs_proc_cells_fops = {
.write = afs_proc_cells_write,
.llseek = seq_lseek,
.release = seq_release,
+ .owner = THIS_MODULE,
};
static int afs_proc_rootcell_open(struct inode *inode, struct file *file);
@@ -56,7 +57,8 @@ static const struct file_operations afs_proc_rootcell_fops = {
.read = afs_proc_rootcell_read,
.write = afs_proc_rootcell_write,
.llseek = no_llseek,
- .release = afs_proc_rootcell_release
+ .release = afs_proc_rootcell_release,
+ .owner = THIS_MODULE,
};
static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file);
@@ -80,6 +82,7 @@ static const struct file_operations afs_proc_cell_volumes_fops = {
.read = seq_read,
.llseek = seq_lseek,
.release = afs_proc_cell_volumes_release,
+ .owner = THIS_MODULE,
};
static int afs_proc_cell_vlservers_open(struct inode *inode,
@@ -104,6 +107,7 @@ static const struct file_operations afs_proc_cell_vlservers_fops = {
.read = seq_read,
.llseek = seq_lseek,
.release = afs_proc_cell_vlservers_release,
+ .owner = THIS_MODULE,
};
static int afs_proc_cell_servers_open(struct inode *inode, struct file *file);
@@ -127,6 +131,7 @@ static const struct file_operations afs_proc_cell_servers_fops = {
.read = seq_read,
.llseek = seq_lseek,
.release = afs_proc_cell_servers_release,
+ .owner = THIS_MODULE,
};
/*
@@ -143,17 +148,13 @@ int afs_proc_init(void)
goto error_dir;
proc_afs->owner = THIS_MODULE;
- p = create_proc_entry("cells", 0, proc_afs);
+ p = proc_create("cells", 0, proc_afs, &afs_proc_cells_fops);
if (!p)
goto error_cells;
- p->proc_fops = &afs_proc_cells_fops;
- p->owner = THIS_MODULE;
- p = create_proc_entry("rootcell", 0, proc_afs);
+ p = proc_create("rootcell", 0, proc_afs, &afs_proc_rootcell_fops);
if (!p)
goto error_rootcell;
- p->proc_fops = &afs_proc_rootcell_fops;
- p->owner = THIS_MODULE;
_leave(" = 0");
return 0;
@@ -395,26 +396,20 @@ int afs_proc_cell_setup(struct afs_cell *cell)
if (!cell->proc_dir)
goto error_dir;
- p = create_proc_entry("servers", 0, cell->proc_dir);
+ p = proc_create_data("servers", 0, cell->proc_dir,
+ &afs_proc_cell_servers_fops, cell);
if (!p)
goto error_servers;
- p->proc_fops = &afs_proc_cell_servers_fops;
- p->owner = THIS_MODULE;
- p->data = cell;
- p = create_proc_entry("vlservers", 0, cell->proc_dir);
+ p = proc_create_data("vlservers", 0, cell->proc_dir,
+ &afs_proc_cell_vlservers_fops, cell);
if (!p)
goto error_vlservers;
- p->proc_fops = &afs_proc_cell_vlservers_fops;
- p->owner = THIS_MODULE;
- p->data = cell;
- p = create_proc_entry("volumes", 0, cell->proc_dir);
+ p = proc_create_data("volumes", 0, cell->proc_dir,
+ &afs_proc_cell_volumes_fops, cell);
if (!p)
goto error_volumes;
- p->proc_fops = &afs_proc_cell_volumes_fops;
- p->owner = THIS_MODULE;
- p->data = cell;
_leave(" = 0");
return 0;
generated by cgit v1.2.3 (git 2.25.1) at 2024-08-09 00:16:39 +0000