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Fix debug pool grow object to properly support delta=0

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(It prints garbage for some reports)
This commit is contained in:
Milan Broz 2009-04-02 15:02:18 +00:00
parent ec5703ea07
commit fe41c21be9
1 changed files with 9 additions and 4 deletions
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13
libdm/mm/pool-debug.c
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@ -218,14 +218,19 @@ int dm_pool_begin_object(struct dm_pool *p, size_t init_size)
int dm_pool_grow_object(struct dm_pool *p, const void *extra, size_t delta)
{
struct block *new;
size_t size = delta ? : strlen(extra);
size_t new_size;
if (!delta)
delta = strlen(extra);
assert(p->begun);
if (p->object)
size += p->object->size;
new_size = delta + p->object->size;
else
new_size = delta;
if (!(new = _new_block(size, DEFAULT_ALIGNMENT))) {
if (!(new = _new_block(new_size, DEFAULT_ALIGNMENT))) {
log_err("Couldn't extend object.");
return 0;
}
@ -237,7 +242,7 @@ int dm_pool_grow_object(struct dm_pool *p, const void *extra, size_t delta)
}
p->object = new;
memcpy(new->data + size - delta, extra, delta);
memcpy(new->data + new_size - delta, extra, delta);
return 1;
}