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yaml
---
r: 209159
b: refs/heads/master
c: 26803b9
h: refs/heads/master
i:
  209157: da6c77f
  209155: 24f3ab0
  209151: b53da4c
v: v3
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Will Drewry authored and Alasdair G Kergon committed Aug 12, 2010
1 parent 86005e5 commit c6f268b
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Showing 4 changed files with 53 additions and 39 deletions.
2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: b1d5552838334c600b068c9c8cc18638e5a8cb47
refs/heads/master: 26803b9f06d365122fae82e7554a66ef8278e0bb
34 changes: 0 additions & 34 deletions trunk/drivers/md/dm-ioctl.c
Original file line number Diff line number Diff line change
Expand Up @@ -1131,28 +1131,9 @@ static int populate_table(struct dm_table *table,
next = spec->next;
}

r = dm_table_set_type(table);
if (r) {
DMWARN("unable to set table type");
return r;
}

return dm_table_complete(table);
}

static int table_prealloc_integrity(struct dm_table *t,
struct mapped_device *md)
{
struct list_head *devices = dm_table_get_devices(t);
struct dm_dev_internal *dd;

list_for_each_entry(dd, devices, list)
if (bdev_get_integrity(dd->dm_dev.bdev))
return blk_integrity_register(dm_disk(md), NULL);

return 0;
}

static int table_load(struct dm_ioctl *param, size_t param_size)
{
int r;
Expand All @@ -1174,21 +1155,6 @@ static int table_load(struct dm_ioctl *param, size_t param_size)
goto out;
}

r = table_prealloc_integrity(t, md);
if (r) {
DMERR("%s: could not register integrity profile.",
dm_device_name(md));
dm_table_destroy(t);
goto out;
}

r = dm_table_alloc_md_mempools(t);
if (r) {
DMWARN("unable to allocate mempools for this table");
dm_table_destroy(t);
goto out;
}

/* Protect md->type and md->queue against concurrent table loads. */
dm_lock_md_type(md);
if (dm_get_md_type(md) == DM_TYPE_NONE)
Expand Down
55 changes: 52 additions & 3 deletions trunk/drivers/md/dm-table.c
Original file line number Diff line number Diff line change
Expand Up @@ -245,7 +245,7 @@ void dm_table_destroy(struct dm_table *t)
msleep(1);
smp_mb();

/* free the indexes (see dm_table_complete) */
/* free the indexes */
if (t->depth >= 2)
vfree(t->index[t->depth - 2]);

Expand Down Expand Up @@ -778,7 +778,7 @@ int dm_table_add_target(struct dm_table *t, const char *type,
return r;
}

int dm_table_set_type(struct dm_table *t)
static int dm_table_set_type(struct dm_table *t)
{
unsigned i;
unsigned bio_based = 0, request_based = 0;
Expand Down Expand Up @@ -900,7 +900,7 @@ static int setup_indexes(struct dm_table *t)
/*
* Builds the btree to index the map.
*/
int dm_table_complete(struct dm_table *t)
static int dm_table_build_index(struct dm_table *t)
{
int r = 0;
unsigned int leaf_nodes;
Expand All @@ -919,6 +919,55 @@ int dm_table_complete(struct dm_table *t)
return r;
}

/*
* Register the mapped device for blk_integrity support if
* the underlying devices support it.
*/
static int dm_table_prealloc_integrity(struct dm_table *t, struct mapped_device *md)
{
struct list_head *devices = dm_table_get_devices(t);
struct dm_dev_internal *dd;

list_for_each_entry(dd, devices, list)
if (bdev_get_integrity(dd->dm_dev.bdev))
return blk_integrity_register(dm_disk(md), NULL);

return 0;
}

/*
* Prepares the table for use by building the indices,
* setting the type, and allocating mempools.
*/
int dm_table_complete(struct dm_table *t)
{
int r;

r = dm_table_set_type(t);
if (r) {
DMERR("unable to set table type");
return r;
}

r = dm_table_build_index(t);
if (r) {
DMERR("unable to build btrees");
return r;
}

r = dm_table_prealloc_integrity(t, t->md);
if (r) {
DMERR("could not register integrity profile.");
return r;
}

r = dm_table_alloc_md_mempools(t);
if (r)
DMERR("unable to allocate mempools");

return r;
}

static DEFINE_MUTEX(_event_lock);
void dm_table_event_callback(struct dm_table *t,
void (*fn)(void *), void *context)
Expand Down
1 change: 0 additions & 1 deletion trunk/drivers/md/dm.h
Original file line number Diff line number Diff line change
Expand Up @@ -59,7 +59,6 @@ void dm_table_postsuspend_targets(struct dm_table *t);
int dm_table_resume_targets(struct dm_table *t);
int dm_table_any_congested(struct dm_table *t, int bdi_bits);
int dm_table_any_busy_target(struct dm_table *t);
int dm_table_set_type(struct dm_table *t);
unsigned dm_table_get_type(struct dm_table *t);
bool dm_table_request_based(struct dm_table *t);
int dm_table_alloc_md_mempools(struct dm_table *t);
Expand Down

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