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FS-10167 contd

This commit is contained in:
Anthony Minessale 2017-03-27 11:10:18 -05:00
parent df582c4882
commit 6ef27805d8
1 changed files with 10 additions and 4 deletions
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14
libs/libks/src/ks_pool.c
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@ -770,7 +770,7 @@ static int split_block(ks_pool_t *mp_p, void *free_addr, const unsigned long siz
* error_p <- Pointer to ks_status_t which, if not NULL, will be set with
* a ks_pool error code.
*/
static void *get_space(ks_pool_t *mp_p, const unsigned long byte_size, ks_status_t *error_p)
static void *get_space(ks_pool_t *mp_p, const unsigned long byte_size, unsigned long *padding, ks_status_t *error_p)
{
ks_pool_block_t *block_p;
ks_pool_free_t free_pnt;
@ -780,10 +780,16 @@ static void *get_space(ks_pool_t *mp_p, const unsigned long byte_size, ks_status
void *free_addr = NULL, *free_end;
size = byte_size;
*padding = 0;
while ((size & (sizeof(void *) - 1)) > 0) {
size++;
}
if (size > byte_size) {
*padding = size - byte_size;
}
/*
* First we check the free lists looking for something with enough
* pages. Maybe we should only look X bits higher in the list.
@ -929,7 +935,7 @@ static void *get_space(ks_pool_t *mp_p, const unsigned long byte_size, ks_status
*/
static void *alloc_mem(ks_pool_t *mp_p, const unsigned long byte_size, ks_status_t *error_p)
{
unsigned long size, fence;
unsigned long size, fence, padding = 0;
void *addr;
alloc_prefix_t *prefix;
@ -943,7 +949,7 @@ static void *alloc_mem(ks_pool_t *mp_p, const unsigned long byte_size, ks_status
fence = FENCE_SIZE;
/* get our free space + the space for the fence post */
addr = get_space(mp_p, size + fence + PREFIX_SIZE, error_p);
addr = get_space(mp_p, size + fence + PREFIX_SIZE, &padding, error_p);
if (addr == NULL) {
/* error_p set in get_space */
return NULL;
@ -953,7 +959,7 @@ static void *alloc_mem(ks_pool_t *mp_p, const unsigned long byte_size, ks_status
prefix = (alloc_prefix_t *) addr;
prefix->m1 = PRE_MAGIC1;
prefix->m2 = PRE_MAGIC2;
prefix->size = size + fence + PREFIX_SIZE;
prefix->size = size + fence + PREFIX_SIZE + padding;
prefix->refs = 1;
if (mp_p->mp_log_func != NULL) {