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author | Matthew Wilcox <[email protected]> | 2016-05-20 17:02:23 -0700 |
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committer | Linus Torvalds <[email protected]> | 2016-05-20 17:58:30 -0700 |
commit | 7b60e9ad59a31dd98c2f7ef841e2882c2b0e0f3b (patch) | |
tree | cca917997c4005d2607172a9389b63172feab0ca /tools/testing/radix-tree/linux/kernel.h | |
parent | 858299544efcf2577511bb018b9e73637ac71a2f (diff) |
radix-tree: fix multiorder BUG_ON in radix_tree_insert
These BUG_ON tests are to ensure that all the tags are clear when
inserting a new entry. If we insert a multiorder entry, we'll end up
looking at the tags for a different node, and so the BUG_ON can end up
triggering spuriously.
Also, we now have three tags, not two, so check all three are clear, and
check all the root tags with a single call to BUG_ON since the bits are
stored contiguously.
Include a test-case to ensure this problem does not reoccur.
Signed-off-by: Matthew Wilcox <[email protected]>
Reviewed-by: Ross Zwisler <[email protected]>
Cc: Konstantin Khlebnikov <[email protected]>
Cc: Kirill Shutemov <[email protected]>
Cc: Jan Kara <[email protected]>
Cc: Neil Brown <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/testing/radix-tree/linux/kernel.h')
0 files changed, 0 insertions, 0 deletions