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authorMichel Lespinasse <walken@google.com>2012-10-08 16:31:27 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-09 16:22:39 +0900
commit85d3a316c714197f94e75c1e5b2d37607d66e5de (patch)
tree3a53a0ed058c1bb9647ea0f4da2d5e2fd97f68cc /init
parent6b2dbba8b6ac4df26f72eda1e5ea7bab9f950e08 (diff)
downloadlinux-85d3a316c714197f94e75c1e5b2d37607d66e5de.tar.bz2
kmemleak: use rbtree instead of prio tree
kmemleak uses a tree where each node represents an allocated memory object in order to quickly find out what object a given address is part of. However, the objects don't overlap, so rbtrees are a better choice than prio tree for this use. They are both faster and have lower memory overhead. Tested by booting a kernel with kmemleak enabled, loading the kmemleak_test module, and looking for the expected messages. Signed-off-by: Michel Lespinasse <walken@google.com> Cc: Rik van Riel <riel@redhat.com> Cc: Hillf Danton <dhillf@gmail.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: David Woodhouse <dwmw2@infradead.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Tested-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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