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pipebuffer: Don't retry allocating in slab suballocator.

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In pipebuffer, fencing is done at on a level above sub-allocation, so no
matter how many times slab allocator retries no buffer will be freed. The
pipebuffer fencing implemention already retries allocating.
This commit is contained in:
José Fonseca
2008-05-22 20:33:17 +09:00
parent 019fc3aa04
commit bd4eec0561
1 changed files with 5 additions and 18 deletions
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23
src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c
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@@ -47,9 +47,6 @@
#include "pb_bufmgr.h"
#define DRI_SLABPOOL_ALLOC_RETRIES 100
struct pb_slab;
struct pb_slab_buffer
@@ -313,7 +310,6 @@ pb_slab_manager_create_buffer(struct pb_manager *_mgr,
static struct pb_slab_buffer *buf;
struct pb_slab *slab;
struct list_head *list;
int count = DRI_SLABPOOL_ALLOC_RETRIES;
/* check size */
assert(size == mgr->bufSize);
@@ -331,23 +327,14 @@ pb_slab_manager_create_buffer(struct pb_manager *_mgr,
/* XXX: check for compatible buffer usage too? */
_glthread_LOCK_MUTEX(mgr->mutex);
while (mgr->slabs.next == &mgr->slabs && count > 0) {
if (mgr->slabs.next != &mgr->slabs)
break;
_glthread_UNLOCK_MUTEX(mgr->mutex);
if (count != DRI_SLABPOOL_ALLOC_RETRIES)
util_time_sleep(1);
_glthread_LOCK_MUTEX(mgr->mutex);
if (mgr->slabs.next == &mgr->slabs) {
(void) pb_slab_create(mgr);
count--;
if (mgr->slabs.next == &mgr->slabs) {
_glthread_UNLOCK_MUTEX(mgr->mutex);
return NULL;
}
}
list = mgr->slabs.next;
if (list == &mgr->slabs) {
_glthread_UNLOCK_MUTEX(mgr->mutex);
return NULL;
}
slab = LIST_ENTRY(struct pb_slab, list, head);
if (--slab->numFree == 0)
LIST_DELINIT(list);