Cross Reference: /src/sys/uvm/uvm

Lines Matching defs:an
54  * avoid an endless loop, the amap cache's allocator cannot allocate
55  * memory from an amap (it currently goes through the kernel uobj, so
75  * what is ppref?   ppref is an _optional_ amap feature which is used
79  * when enabled, an array of ints is allocated for the pprefs.  this
82  * to only a part of an amap).  if the allocation of the array fails
85  * give up (after all, this is an optional feature!).
92  * of the chunk.   here is an example:
145  * amap_alloc1: allocate an amap, but do not initialise the overlay.
226  * amap_alloc: allocate an amap to manage "sz" bytes of anonymous VM
314  * amap_free: free an amap
343  * amap_extend: extend the size of an amap (if needed)
345  * => called from uvm_map when we want to extend an amap to cover
348  * => to safely extend an amap it should have a reference count of
401 	 * entries, and so any slot from 0 to am_nslot can have an
481 			 * alloc time and we never shrink an allocation.
747  * amap_wipeout: wipeout all anon's in an amap; then free the amap!
811  * => an entry with a null amap pointer will get a new (blank) one.
841 	 * Is there an amap to copy?  If not, create one.
880 		 * Allocate an initialised amap and install it.
1005  * amap_cow_now: resolve all copy-on-write faults in an amap now for fork(2)
1170  * amap_pp_establish: add a ppref array to an amap, if possible.
1193  * amap_pp_adjref: adjust reference count to a part of an amap using the
1264  * amap_wiperange: wipe out a range of an amap.
1440  * amap_lookup: look up a page in an amap.
1448 	struct vm_anon *an;
1456 	an = amap->am_anon[slot];
1460 	    (uintptr_t)amap, offset, (uintptr_t)an, 0);
1463 	KASSERT(an == NULL || an->an_ref != 0);
1464 	KASSERT(an == NULL || an->an_lock == amap->am_lock);
1465 	return an;
1469  * amap_lookups: look up a range of pages in an amap.
1494 		struct vm_anon * const an = anons[i];
1495 		if (an == NULL) {
1498 		KASSERT(an->an_ref != 0);
1499 		KASSERT(an->an_lock == amap->am_lock);
1506  * amap_add: add (or replace) a page to an amap.
1550  * amap_unadd: remove a page from an amap.
1615  * amap_ref: gain a reference to an amap.
1636  * amap_unref: remove a reference to an amap.
OpenGrok
