* This file is released under the GPL.
*/
+#include "dm.h"
+
#include <linux/device-mapper.h>
#include <linux/bio.h>
void *context;
};
+static struct kmem_cache *_dm_io_cache;
+
/*
* io contexts are only dynamically allocated for asynchronous
* io. Since async io is likely to be the majority of io we'll
if (!client)
return ERR_PTR(-ENOMEM);
- client->pool = mempool_create_kmalloc_pool(ios, sizeof(struct io));
+ client->pool = mempool_create_slab_pool(ios, _dm_io_cache);
if (!client->pool)
goto bad;
&dp, io_req->notify.fn, io_req->notify.context);
}
EXPORT_SYMBOL(dm_io);
+
+int __init dm_io_init(void)
+{
+ _dm_io_cache = KMEM_CACHE(io, 0);
+ if (!_dm_io_cache)
+ return -ENOMEM;
+
+ return 0;
+}
+
+void dm_io_exit(void)
+{
+ kmem_cache_destroy(_dm_io_cache);
+ _dm_io_cache = NULL;
+}
void dm_kobject_uevent(struct mapped_device *md, enum kobject_action action,
unsigned cookie);
+int dm_io_init(void);
+void dm_io_exit(void);
+
int dm_kcopyd_init(void);
void dm_kcopyd_exit(void);