tree af710aa375e0f641ceec1bf7d4002ef33beeb571
parent 2d1d43f6a43b703587e759145f69467e7c6553a7
author Hugh Dickins <hugh@veritas.com> 1159520486 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159546703 -0700

[PATCH] valid_swaphandles() fix

akpm draws my attention to the fact that sysctl(VM_PAGE_CLUSTER) might
conceivably change page_cluster to 0 while valid_swaphandles() is in the
middle of using it, leading to an embarrassingly long loop: take a local
snapshot of page_cluster and work with that.

Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>