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thin: always clear memory before parsing status

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Ensure there cannot be 'reused' any data from some previous call.
This commit is contained in:
Zdenek Kabelac 2017-12-06 13:24:41 +01:00
parent 2166d7be72
commit 2208ebfe16
3 changed files with 5 additions and 2 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.177 -
====================================
Ensure _node_send_message always uses clean status of thin pool.
Fix lvmlockd to use pool lock when accessing _tmeta volume.
Report expected sanlock_convert errors only when retries fail.
Avoid blocking in sanlock_convert on SH to EX lock conversion.

2
libdm/libdm-deptree.c
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@ -1493,7 +1493,7 @@ static int _node_send_messages(struct dm_tree_node *dnode,
{
struct load_segment *seg;
struct thin_message *tmsg;
struct dm_status_thin_pool stp = { 0 };
struct dm_status_thin_pool stp;
const char *uuid;
int have_messages;

4
libdm/libdm-targets.c
View File

@ -350,6 +350,8 @@ int parse_thin_pool_status(const char *params, struct dm_status_thin_pool *s)
{
int pos;
memset(s, 0, sizeof(*s));
if (!params) {
log_error("Failed to parse invalid thin params.");
return 0;
@ -406,7 +408,7 @@ int dm_get_status_thin_pool(struct dm_pool *mem, const char *params,
{
struct dm_status_thin_pool *s;
if (!(s = dm_pool_zalloc(mem, sizeof(struct dm_status_thin_pool)))) {
if (!(s = dm_pool_alloc(mem, sizeof(struct dm_status_thin_pool)))) {
log_error("Failed to allocate thin_pool status structure.");
return 0;
}