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23 October 2021, 00:29:24 UTC
Revision dd942ae331425812930cd01766178b7e28e65f2d authored by Andi Kleen on 17 February 2006, 00:39:16 UTC, committed by Linus Torvalds on 17 February 2006, 16:18:14 UTC 
[PATCH] Handle all and empty zones when setting up custom zonelists for mbind
 
The memory allocator doesn't like empty zones (which have an
uninitialized freelist), so a x86-64 system with a node fully
in GFP_DMA32 only would crash on mbind.

Fix that up by putting all possible zones as fallback into the zonelist
and skipping the empty ones.

In fact the code always enough allocated space for all zones,
but only used it for the highest. This change just uses all the
memory that was allocated before.

This should work fine for now, but whoever implements node hot removal
needs to fix this somewhere else too (or make sure zone datastructures
by itself never go away, only their memory)

Signed-off-by: Andi Kleen <ak@suse.de>
Acked-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1 parent 759b650
History
Tip revision: dd942ae331425812930cd01766178b7e28e65f2d authored by Andi Kleen on 17 February 2006, 00:39:16 UTC
[PATCH] Handle all and empty zones when setting up custom zonelists for mbind
Tip revision: dd942ae
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