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| author | Konstantin Khlebnikov <khlebnikov@openvz.org> | 2012-06-05 21:36:33 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-06-10 00:36:17 +0900 |
| commit | b642cb6a143da812f188307c2661c0357776a9d0 (patch) | |
| tree | 2c88df819dc12d6a92bf72cce91eaad3ba62ec88 /kernel/stacktrace.c | |
| parent | f940c5366eaaea9630ba643a036c2df321f66db3 (diff) | |
radix-tree: fix contiguous iterator
commit fffaee365fded09f9ebf2db19066065fa54323c3 upstream.
This patch fixes bug in macro radix_tree_for_each_contig().
If radix_tree_next_slot() sees NULL in next slot it returns NULL, but following
radix_tree_next_chunk() switches iterating into next chunk. As result iterating
becomes non-contiguous and breaks vfs "splice" and all its users.
Signed-off-by: Konstantin Khlebnikov <khlebnikov@openvz.org>
Reported-and-bisected-by: Hans de Bruin <jmdebruin@xmsnet.nl>
Reported-and-bisected-by: Ondrej Zary <linux@rainbow-software.org>
Reported-bisected-and-tested-by: Toralf Förster <toralf.foerster@gmx.de>
Link: https://lkml.org/lkml/2012/6/5/64
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/stacktrace.c')
0 files changed, 0 insertions, 0 deletions