[lvm-devel] LVM2 ./WHATS_NEW_DM libdm/libdm-deptree.c
zkabelac at sourceware.org
zkabelac at sourceware.org
Fri Oct 14 13:34:20 UTC 2011
CVSROOT: /cvs/lvm2
Module name: LVM2
Changes by: zkabelac at sourceware.org 2011-10-14 13:34:19
Modified files:
. : WHATS_NEW_DM
libdm : libdm-deptree.c
Log message:
Use pool for dm_tree allocation
Using the same pool allocation strategy as we use for vg,
so dm_tree structure is part of the pool itself.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/WHATS_NEW_DM.diff?cvsroot=lvm2&r1=1.509&r2=1.510
http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/libdm/libdm-deptree.c.diff?cvsroot=lvm2&r1=1.122&r2=1.123
--- LVM2/WHATS_NEW_DM 2011/10/03 18:28:25 1.509
+++ LVM2/WHATS_NEW_DM 2011/10/14 13:34:19 1.510
@@ -1,5 +1,6 @@
Version 1.02.68 -
==================================
+ Allocate dm_tree structure from dm_tree pool.
Update debug logging for _resume_node.
Add functions to support thin provisioning target (API unstable).
Improve libdm-config error path reporting.
--- LVM2/libdm/libdm-deptree.c 2011/10/06 14:45:42 1.122
+++ LVM2/libdm/libdm-deptree.c 2011/10/14 13:34:19 1.123
@@ -248,10 +248,14 @@
struct dm_tree *dm_tree_create(void)
{
+ struct dm_pool *dmem;
struct dm_tree *dtree;
- if (!(dtree = dm_zalloc(sizeof(*dtree)))) {
- log_error("dm_tree_create malloc failed");
+ if (!(dmem = dm_pool_create("dtree", 1024)) ||
+ !(dtree = dm_pool_zalloc(dmem, sizeof(*dtree)))) {
+ log_error("Failed to allocate dtree.");
+ if (dmem)
+ dm_pool_destroy(dmem);
return NULL;
}
@@ -260,17 +264,11 @@
dm_list_init(&dtree->root.used_by);
dtree->skip_lockfs = 0;
dtree->no_flush = 0;
-
- if (!(dtree->mem = dm_pool_create("dtree", 1024))) {
- log_error("dtree pool creation failed");
- dm_free(dtree);
- return NULL;
- }
+ dtree->mem = dmem;
if (!(dtree->devs = dm_hash_create(8))) {
log_error("dtree hash creation failed");
dm_pool_destroy(dtree->mem);
- dm_free(dtree);
return NULL;
}
@@ -278,7 +276,6 @@
log_error("dtree uuid hash creation failed");
dm_hash_destroy(dtree->devs);
dm_pool_destroy(dtree->mem);
- dm_free(dtree);
return NULL;
}
@@ -293,7 +290,6 @@
dm_hash_destroy(dtree->uuids);
dm_hash_destroy(dtree->devs);
dm_pool_destroy(dtree->mem);
- dm_free(dtree);
}
static int _nodes_are_linked(const struct dm_tree_node *parent,
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