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authorJosé Fonseca <jrfonseca@tungstengraphics.com>2008-05-22 20:33:17 +0900
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2008-05-22 20:33:17 +0900
commitbd4eec0561fb021849ac4047fdbf40a616fb68b3 (patch)
tree0718f2d2844808a7bfc45c93354ed5cbcd3f0831 /src
parent019fc3aa04f11d61e6d0f4791c171d1790577ab5 (diff)
pipebuffer: Don't retry allocating in slab suballocator.
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.
Diffstat (limited to 'src')
-rw-r--r--src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c23
1 files changed, 5 insertions, 18 deletions
diff --git a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c
index b931455056..45ba158a4d 100644
--- a/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c
+++ b/src/gallium/auxiliary/pipebuffer/pb_bufmgr_slab.c
@@ -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);