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| author | Peter Zijlstra | 2006-06-23 11:03:25 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2006-06-23 16:42:49 +0200 |
| commit | 4c91c3648c620003cb7b21b8858f36cd6132e168 (patch) | |
| tree | 6572fedb9a18ba0b31695f1ba30a219621b6f20a /mm/vmscan.c | |
| parent | [PATCH] slab: redzone double-free detection (diff) | |
| download | kernel-qcow2-linux-4c91c3648c620003cb7b21b8858f36cd6132e168.tar.gz kernel-qcow2-linux-4c91c3648c620003cb7b21b8858f36cd6132e168.tar.xz kernel-qcow2-linux-4c91c3648c620003cb7b21b8858f36cd6132e168.zip | |
[PATCH] buglet in radix_tree_tag_set
The comment states: 'Setting a tag on a not-present item is a BUG.' Hence
if 'index' is larger than the maxindex; the item _cannot_ be presen; it
should also be a BUG.
Also, this allows the following statement (assume a fresh tree):
radix_tree_tag_set(root, 16, 1);
to fail silently, but when preceded by:
radix_tree_insert(root, 32, item);
it would BUG, because the height has been extended by the insert.
In neither case was 16 present.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/vmscan.c')
0 files changed, 0 insertions, 0 deletions