[PATCH] GFP_ZONETYPES: add commentry on how to calculate

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GFP_ZONETYPES define using GFP_ZONEMASK and add commentry

Add commentry explaining the optimisation that we can apply to GFP_ZONETYPES
when the leftmost bit is a 'loaner', it can only be set in isolation.

Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

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Andy Whitcroft 2006-02-01 03:05:26 -08:00 • committed by Linus Torvalds

parent 42c722d4cb

commit 79046ae07a

1 changed files with 8 additions and 0 deletions

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include/linux/mmzone.h

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