*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
- * of the GNU General Public License v.2.
+ * of the GNU General Public License version 2.
*/
#include <linux/module.h>
#include <linux/types.h>
#include <linux/fs.h>
#include <linux/smp_lock.h>
-
-#include "../../lm_interface.h"
+#include <linux/lm_interface.h>
struct nolock_lockspace {
unsigned int nl_lvb_size;
};
-struct lm_lockops nolock_ops;
+static const struct lm_lockops nolock_ops;
static int nolock_mount(char *table_name, char *host_data,
- lm_callback_t cb, lm_fsdata_t *fsdata,
+ lm_callback_t cb, void *cb_data,
unsigned int min_lvb_size, int flags,
struct lm_lockstruct *lockstruct,
struct kobject *fskobj)
unsigned int jid;
struct nolock_lockspace *nl;
- /* If there is a "jid=" in the hostdata, return that jid.
- Otherwise, return zero. */
-
c = strstr(host_data, "jid=");
if (!c)
jid = 0;
sscanf(c, "%u", &jid);
}
- nl = kmalloc(sizeof(struct nolock_lockspace), GFP_KERNEL);
+ nl = kzalloc(sizeof(struct nolock_lockspace), GFP_KERNEL);
if (!nl)
return -ENOMEM;
- memset(nl, 0, sizeof(struct nolock_lockspace));
nl->nl_lvb_size = min_lvb_size;
lockstruct->ls_jid = jid;
lockstruct->ls_first = 1;
lockstruct->ls_lvb_size = min_lvb_size;
- lockstruct->ls_lockspace = (lm_lockspace_t *)nl;
+ lockstruct->ls_lockspace = nl;
lockstruct->ls_ops = &nolock_ops;
lockstruct->ls_flags = LM_LSFLAG_LOCAL;
return 0;
}
-static void nolock_others_may_mount(lm_lockspace_t *lockspace)
+static void nolock_others_may_mount(void *lockspace)
{
}
-static void nolock_unmount(lm_lockspace_t *lockspace)
+static void nolock_unmount(void *lockspace)
{
- struct nolock_lockspace *nl = (struct nolock_lockspace *)lockspace;
+ struct nolock_lockspace *nl = lockspace;
kfree(nl);
}
-static void nolock_withdraw(lm_lockspace_t *lockspace)
+static void nolock_withdraw(void *lockspace)
{
}
* Returns: 0 on success, -EXXX on failure
*/
-static int nolock_get_lock(lm_lockspace_t *lockspace, struct lm_lockname *name,
- lm_lock_t **lockp)
+static int nolock_get_lock(void *lockspace, struct lm_lockname *name,
+ void **lockp)
{
- *lockp = (lm_lock_t *)lockspace;
+ *lockp = lockspace;
return 0;
}
*
*/
-static void nolock_put_lock(lm_lock_t *lock)
+static void nolock_put_lock(void *lock)
{
}
* Returns: A bitmap of LM_OUT_*
*/
-static unsigned int nolock_lock(lm_lock_t *lock, unsigned int cur_state,
+static unsigned int nolock_lock(void *lock, unsigned int cur_state,
unsigned int req_state, unsigned int flags)
{
return req_state | LM_OUT_CACHEABLE;
* Returns: 0
*/
-static unsigned int nolock_unlock(lm_lock_t *lock, unsigned int cur_state)
+static unsigned int nolock_unlock(void *lock, unsigned int cur_state)
{
return 0;
}
-static void nolock_cancel(lm_lock_t *lock)
+static void nolock_cancel(void *lock)
{
}
* Returns: 0 on success, -EXXX on failure
*/
-static int nolock_hold_lvb(lm_lock_t *lock, char **lvbp)
+static int nolock_hold_lvb(void *lock, char **lvbp)
{
- struct nolock_lockspace *nl = (struct nolock_lockspace *)lock;
+ struct nolock_lockspace *nl = lock;
int error = 0;
- *lvbp = kmalloc(nl->nl_lvb_size, GFP_KERNEL);
- if (*lvbp)
- memset(*lvbp, 0, nl->nl_lvb_size);
- else
+ *lvbp = kzalloc(nl->nl_lvb_size, GFP_KERNEL);
+ if (!*lvbp)
error = -ENOMEM;
return error;
*
*/
-static void nolock_unhold_lvb(lm_lock_t *lock, char *lvb)
+static void nolock_unhold_lvb(void *lock, char *lvb)
{
kfree(lvb);
}
-/**
- * nolock_sync_lvb - sync out the value of a lvb
- * @lock: the lock the LVB is associated with
- * @lvb: the lock value block
- *
- */
-
-static void nolock_sync_lvb(lm_lock_t *lock, char *lvb)
-{
-}
-
-static int nolock_plock_get(lm_lockspace_t *lockspace, struct lm_lockname *name,
+static int nolock_plock_get(void *lockspace, struct lm_lockname *name,
struct file *file, struct file_lock *fl)
{
- struct file_lock *tmp;
+ struct file_lock tmp;
+ int ret;
- lock_kernel();
- tmp = posix_test_lock(file, fl);
+ ret = posix_test_lock(file, fl, &tmp);
fl->fl_type = F_UNLCK;
- if (tmp)
- memcpy(fl, tmp, sizeof(struct file_lock));
- unlock_kernel();
+ if (ret)
+ memcpy(fl, &tmp, sizeof(struct file_lock));
return 0;
}
-static int nolock_plock(lm_lockspace_t *lockspace, struct lm_lockname *name,
+static int nolock_plock(void *lockspace, struct lm_lockname *name,
struct file *file, int cmd, struct file_lock *fl)
{
int error;
- lock_kernel();
error = posix_lock_file_wait(file, fl);
- unlock_kernel();
return error;
}
-static int nolock_punlock(lm_lockspace_t *lockspace, struct lm_lockname *name,
+static int nolock_punlock(void *lockspace, struct lm_lockname *name,
struct file *file, struct file_lock *fl)
{
int error;
- lock_kernel();
error = posix_lock_file_wait(file, fl);
- unlock_kernel();
return error;
}
-static void nolock_recovery_done(lm_lockspace_t *lockspace, unsigned int jid,
+static void nolock_recovery_done(void *lockspace, unsigned int jid,
unsigned int message)
{
}
-struct lm_lockops nolock_ops = {
+static const struct lm_lockops nolock_ops = {
.lm_proto_name = "lock_nolock",
.lm_mount = nolock_mount,
.lm_others_may_mount = nolock_others_may_mount,
.lm_cancel = nolock_cancel,
.lm_hold_lvb = nolock_hold_lvb,
.lm_unhold_lvb = nolock_unhold_lvb,
- .lm_sync_lvb = nolock_sync_lvb,
.lm_plock_get = nolock_plock_get,
.lm_plock = nolock_plock,
.lm_punlock = nolock_punlock,
.lm_owner = THIS_MODULE,
};
-int __init init_nolock(void)
+static int __init init_nolock(void)
{
int error;
- error = gfs_register_lockproto(&nolock_ops);
+ error = gfs2_register_lockproto(&nolock_ops);
if (error) {
- printk("lock_nolock: can't register protocol: %d\n", error);
+ printk(KERN_WARNING
+ "lock_nolock: can't register protocol: %d\n", error);
return error;
}
- printk("Lock_Nolock (built %s %s) installed\n", __DATE__, __TIME__);
+ printk(KERN_INFO
+ "Lock_Nolock (built %s %s) installed\n", __DATE__, __TIME__);
return 0;
}
-void __exit exit_nolock(void)
+static void __exit exit_nolock(void)
{
- gfs_unregister_lockproto(&nolock_ops);
+ gfs2_unregister_lockproto(&nolock_ops);
}
module_init(init_nolock);
projects / ~andy / linux / blobdiff