*
*/
-#include <asm/uaccess.h>
-#include <linux/sched.h>
-#include <linux/stat.h>
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
#include <linux/string.h>
+#include <linux/stat.h>
+#include <linux/errno.h>
#include <linux/locks.h>
-#include <linux/quotaops.h>
-#include <linux/list.h>
-#include <linux/file.h>
-#include <linux/iobuf.h>
-#include <asm/bitops.h>
-#include <asm/byteorder.h>
+#include <linux/unistd.h>
+
+#include <asm/system.h>
+#include <asm/uaccess.h>
+
+#include <linux/fs.h>
+#include <linux/stat.h>
+#include <asm/uaccess.h>
+#include <linux/vmalloc.h>
+#include <asm/segment.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/smp_lock.h>
+
#include <linux/obd_support.h>
#include <linux/obd_class.h>
extern struct obd_device obd_dev[MAX_OBD_DEVICES];
+kmem_cache_t *obdo_cachep = NULL;
+
+int obd_init_obdo_cache(void)
+{
+ ENTRY;
+ if (obdo_cachep == NULL) {
+ CDEBUG(D_CACHE, "allocating obdo_cache\n");
+ obdo_cachep = kmem_cache_create("obdo_cache",
+ sizeof(struct obdo),
+ 0, SLAB_HWCACHE_ALIGN,
+ NULL, NULL);
+ if (obdo_cachep == NULL) {
+ EXIT;
+ return -ENOMEM;
+ } else {
+ CDEBUG(D_CACHE, "allocated cache at %p\n", obdo_cachep);
+ }
+ } else {
+ CDEBUG(D_CACHE, "using existing cache at %p\n", obdo_cachep);
+ }
+ EXIT;
+ return 0;
+}
+
+void obd_cleanup_obdo_cache(void)
+{
+ ENTRY;
+ if (obdo_cachep != NULL) {
+ CDEBUG(D_CACHE, "destroying obdo_cache at %p\n", obdo_cachep);
+ if (kmem_cache_destroy(obdo_cachep))
+ printk(KERN_WARNING __FUNCTION__
+ ": unable to free cache\n");
+ } else
+ printk(KERN_INFO __FUNCTION__
+ ": called with NULL cache pointer\n");
+
+ obdo_cachep = NULL;
+ EXIT;
+}
+
/* map connection to client */
struct obd_client *gen_client(struct obd_conn *conn)
} /* obd_client */
-
/* a connection defines a context in which preallocation can be managed. */
int gen_connect (struct obd_conn *conn)
{
OBD_ALLOC(cli, struct obd_client *, sizeof(struct obd_client));
if ( !cli ) {
- printk("obd_connect (minor %d): no memory!\n",
+ printk(__FUNCTION__ ": no memory! (minor %d)\n",
conn->oc_dev->obd_minor);
return -ENOMEM;
}
INIT_LIST_HEAD(&cli->cli_prealloc_inodes);
- /* this should probably spinlocked? */
+ /* XXX this should probably spinlocked? */
cli->cli_id = ++conn->oc_dev->obd_gen_last_id;
cli->cli_prealloc_quota = 0;
cli->cli_obd = conn->oc_dev;
list_add(&(cli->cli_chain), conn->oc_dev->obd_gen_clients.prev);
- CDEBUG(D_IOCTL, "connect: new ID %u\n", cli->cli_id);
+ CDEBUG(D_INFO, "connect: new ID %u\n", cli->cli_id);
conn->oc_id = cli->cli_id;
return 0;
} /* gen_obd_connect */
list_del(&(cli->cli_chain));
OBD_FREE(cli, sizeof(struct obd_client));
- CDEBUG(D_IOCTL, "disconnect: ID %u\n", conn->oc_id);
+ CDEBUG(D_INFO, "disconnect: ID %u\n", conn->oc_id);
EXIT;
return 0;
* used to make calls to these devices.
* data holds nothing
*/
-int gen_multi_setup(struct obd_device *obddev, int len, void *data)
+int gen_multi_setup(struct obd_device *obddev, uint32_t len, void *data)
{
int i;
rc = OBP(ch_conn->oc_dev, connect)(ch_conn);
if ( rc != 0 ) {
- /* XXX disconnect others */
+ int j;
+
+ for (j = --i; j >= 0; --j) {
+ ch_conn = &obddev->obd_multi_conn[i];
+ OBP(ch_conn->oc_dev, disconnect)(ch_conn);
+ }
return -EINVAL;
}
}
for (i=0 ; i<count ; i++) {
rdev = &obd_dev[*((int *)data + i)];
rdev = rdev + 1;
- CDEBUG(D_IOCTL, "OBD RAID1: replicator %d is of type %s\n", i,
+ CDEBUG(D_INFO, "OBD RAID1: replicator %d is of type %s\n", i,
(rdev + i)->obd_type->typ_name);
}
return 0;
rc = OBP(ch_conn->oc_dev, disconnect)(ch_conn);
if ( rc != 0 ) {
- printk("OBD multi cleanup dev: disconnect failure %d\n", ch_conn->oc_dev->obd_minor);
+ printk(KERN_WARNING __FUNCTION__
+ ": disconnect failure %d\n",
+ ch_conn->oc_dev->obd_minor);
}
}
return 0;
lh = tmp = &obddev->obd_gen_clients;
while ((tmp = tmp->next) != lh) {
cli = list_entry(tmp, struct obd_client, cli_chain);
- CDEBUG(D_IOCTL, "Disconnecting obd_connection %d, at %p\n",
+ CDEBUG(D_INFO, "Disconnecting obd_connection %d, at %p\n",
cli->cli_id, cli);
}
return 0;
___wait_on_page(page);
}
-int gen_copy_data(struct obd_conn *conn, obdattr *src, obdattr *tgt)
+int gen_copy_data(struct obd_conn *dst_conn, struct obdo *dst,
+ struct obd_conn *src_conn, struct obdo *src,
+ obd_size count, obd_off offset)
{
struct page *page;
unsigned long index = 0;
- int rc;
+ int err = 0;
+ ENTRY;
+ CDEBUG(D_INFO, "src: ino %Ld blocks %Ld, size %Ld, dst: ino %Ld\n",
+ src->o_id, src->o_blocks, src->o_size, dst->o_id);
page = alloc_page(GFP_USER);
- if ( !page )
+ if ( !page ) {
+ EXIT;
return -ENOMEM;
-
+ }
lck_page(page);
- while (index < src->i_size / PAGE_SIZE) {
+ /* XXX with brw vector I/O, we could batch up reads and writes here,
+ * all we need to do is allocate multiple pages to handle the I/Os
+ * and arrays to handle the request parameters.
+ */
+ while (index < ((src->o_size + PAGE_SIZE - 1) >> PAGE_SHIFT)) {
+ obd_count num_oa = 1;
+ obd_count num_buf = 1;
+ char *buf;
+ obd_size brw_count = PAGE_SIZE;
+ obd_off brw_offset = (page->index) << PAGE_SHIFT;
+ obd_flag flagr = 0;
+ obd_flag flagw = OBD_BRW_CREATE;
page->index = index;
- rc = OBP(conn->oc_dev, brw)(READ, conn, src, page, 0);
+ buf = (char *)page_address(page);
+ err = OBP(src_conn->oc_dev, brw)(READ, src_conn, num_oa, &src,
+ &num_buf, &buf, &brw_count,
+ &brw_offset, &flagr);
- if ( rc != PAGE_SIZE )
+ if ( err ) {
+ EXIT;
break;
+ }
+ CDEBUG(D_INFO, "Read page %ld ...\n", page->index);
+
+ err = OBP(dst_conn->oc_dev, brw)(WRITE, dst_conn, num_oa, &dst,
+ &num_buf, &buf, &brw_count,
+ &brw_offset, &flagw);
- rc = OBP(conn->oc_dev,brw)(WRITE, conn, tgt, page, 1);
- if ( rc != PAGE_SIZE)
+ /* XXX should handle dst->o_size, dst->o_blocks here */
+ if ( err ) {
+ EXIT;
break;
+ }
+
+ CDEBUG(D_INFO, "Wrote page %ld ...\n", page->index);
- index ++;
+ index++;
}
- tgt->i_size = src->i_size;
- tgt->i_blocks = src->i_blocks;
+ dst->o_size = src->o_size;
+ dst->o_blocks = src->o_blocks;
+ dst->o_valid |= (OBD_MD_FLSIZE | OBD_MD_FLBLOCKS);
UnlockPage(page);
__free_page(page);
- return 0;
+ EXIT;
+ return err;
}
git://git.whamcloud.com / fs / lustre-release.git / blobdiff