[dm-devel] [PATCH] 2.6.0-t6-mm1-dm2: 9/7: dm_table_create fixes
Kevin Corry
kevcorry at us.ibm.com
Fri Oct 24 15:37:01 UTC 2003
Here's a patch to fix dm_table_create() in 2.6. This is basically a
combination of 2.4.23-pre7-dm3::00016.patch and my patch for
dm-table.c in 2.4 which I posted a little while ago.
--- a/drivers/md/dm-ioctl-v1.c 29 Sep 2003 15:00:13 -0000
+++ b/drivers/md/dm-ioctl-v1.c 24 Oct 2003 19:07:33 -0000
@@ -566,7 +566,7 @@
if (r)
return r;
- r = dm_table_create(&t, get_mode(param));
+ r = dm_table_create(&t, get_mode(param), param->target_count);
if (r)
return r;
@@ -894,7 +894,7 @@
struct mapped_device *md;
struct dm_table *t;
- r = dm_table_create(&t, get_mode(param));
+ r = dm_table_create(&t, get_mode(param), param->target_count);
if (r)
return r;
--- a/drivers/md/dm-ioctl-v4.c 29 Sep 2003 15:01:15 -0000
+++ b/drivers/md/dm-ioctl-v4.c 24 Oct 2003 19:07:14 -0000
@@ -872,7 +872,7 @@
struct hash_cell *hc;
struct dm_table *t;
- r = dm_table_create(&t, get_mode(param));
+ r = dm_table_create(&t, get_mode(param), param->target_count);
if (r)
return r;
--- a/drivers/md/dm-table.c 9 Oct 2003 16:47:44 -0000
+++ b/drivers/md/dm-table.c 24 Oct 2003 19:08:32 -0000
@@ -202,7 +202,7 @@
return 0;
}
-int dm_table_create(struct dm_table **result, int mode)
+int dm_table_create(struct dm_table **result, int mode, unsigned num_targets)
{
struct dm_table *t = kmalloc(sizeof(*t), GFP_NOIO);
@@ -213,8 +213,12 @@
INIT_LIST_HEAD(&t->devices);
atomic_set(&t->holders, 1);
- /* allocate a single nodes worth of targets to begin with */
- if (alloc_targets(t, KEYS_PER_NODE)) {
+ if (!num_targets)
+ num_targets = KEYS_PER_NODE;
+
+ num_targets = dm_round_up(num_targets, KEYS_PER_NODE);
+
+ if (alloc_targets(t, num_targets)) {
kfree(t);
t = NULL;
return -ENOMEM;
--- a/drivers/md/dm.h 20 Oct 2003 16:05:53 -0000
+++ b/drivers/md/dm.h 24 Oct 2003 19:05:44 -0000
@@ -95,7 +95,7 @@
* Functions for manipulating a table. Tables are also reference
* counted.
*---------------------------------------------------------------*/
-int dm_table_create(struct dm_table **result, int mode);
+int dm_table_create(struct dm_table **result, int mode, unsigned num_targets);
void dm_table_get(struct dm_table *t);
void dm_table_put(struct dm_table *t);
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