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authorChristoph Lameter <clameter@sgi.com>2006-09-25 23:31:19 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 08:48:47 -0700
commit19655d3487001d7df0e10e9cbfc27c758b77c2b5 (patch)
tree8d0aaa216bd32bd64e3a9652fd34d40bdb9d1075 /include/linux/gfp.h
parent2f6726e54a9410e2e4cee864947c05e954051916 (diff)
downloadop-kernel-dev-19655d3487001d7df0e10e9cbfc27c758b77c2b5.zip
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[PATCH] linearly index zone->node_zonelists[]
I wonder why we need this bitmask indexing into zone->node_zonelists[]? We always start with the highest zone and then include all lower zones if we build zonelists. Are there really cases where we need allocation from ZONE_DMA or ZONE_HIGHMEM but not ZONE_NORMAL? It seems that the current implementation of highest_zone() makes that already impossible. If we go linear on the index then gfp_zone() == highest_zone() and a lot of definitions fall by the wayside. We can now revert back to the use of gfp_zone() in mempolicy.c ;-) Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/linux/gfp.h')
-rw-r--r--include/linux/gfp.h12
1 files changed, 1 insertions, 11 deletions
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index a0992d3..63ab88a 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -12,9 +12,6 @@ struct vm_area_struct;
*
* Zone modifiers (see linux/mmzone.h - low three bits)
*
- * These may be masked by GFP_ZONEMASK to make allocations with this bit
- * set fall back to ZONE_NORMAL.
- *
* Do not put any conditional on these. If necessary modify the definitions
* without the underscores and use the consistently. The definitions here may
* be used in bit comparisons.
@@ -78,14 +75,7 @@ struct vm_area_struct;
#define GFP_DMA32 __GFP_DMA32
-static inline int gfp_zone(gfp_t gfp)
-{
- int zone = GFP_ZONEMASK & (__force int) gfp;
- BUG_ON(zone >= GFP_ZONETYPES);
- return zone;
-}
-
-static inline enum zone_type highest_zone(gfp_t flags)
+static inline enum zone_type gfp_zone(gfp_t flags)
{
if (flags & __GFP_DMA)
return ZONE_DMA;
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