Changeset b0c2075 in mainline for kernel/generic/include/mm/slab.h

Timestamp:

2013-09-10T17:48:57Z (11 years ago)

Author:

Martin Decky <martin@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

85147f3

Parents:

86733f3

Message:

new physical memory allocator supporting physical address constrains
the buddy allocator framework is retired and replaced by a two-level bitmap
the allocator can allocate an arbitrary number of frames, not only a power-of-two count

Caution: Change of semantics
The physical memory allocator no longer allocates naturally aligned blocks. If you require an aligned block, specify it as the constraint.

File:

• kernel/generic/include/mm/slab.h (modified) (2 diffs)

kernel/generic/include/mm/slab.h

@@ -55 +55 @@
 /** Maximum wasted space we allow for cache */
 #define SLAB_MAX_BADNESS(cache) \
-        (((unsigned int) PAGE_SIZE << (cache)->order) >> 2)
+        (FRAMES2SIZE((cache)->frames) >> 2)
 
 /* slab_reclaim constants */
@@ -101 +101 @@
         
         /* Computed values */
-        uint8_t order;   /**< Order of frames to be allocated */
+        size_t frames;   /**< Number of frames to be allocated */
         size_t objects;  /**< Number of objects that fit in */