On Thu, May 03, 2018 at 01:24:25PM -0600, Ross Zwisler wrote: > The following series gets the radix tree test suite compiling again in > the current linux/master, adds a unit test which exposes a race in the > radix tree multi-order iteration code, and then fixes that race. > > This race was initially hit on a v4.15 based kernel and results in a GP > fault. I've described the race in detail in patches 4 and 5. > > The fix is simple and necessary, and I think it should be merged for > v4.17. > > This tree has gotten positive build confirmation from the 0-day bot, > passes the updated radix tree test suite, xfstests, and the original > test that was hitting the race with the v4.15 based kernel. > > Ross Zwisler (5): > radix tree test suite: fix mapshift build target > radix tree test suite: fix compilation issue > radix tree test suite: add item_delete_rcu() > radix tree test suite: multi-order iteration race > radix tree: fix multi-order iteration race > > lib/radix-tree.c | 6 ++-- > tools/include/linux/spinlock.h | 3 +- > tools/testing/radix-tree/Makefile | 6 ++-- > tools/testing/radix-tree/multiorder.c | 63 > +++++++++++++++++++++++++++++++++++ > tools/testing/radix-tree/test.c | 19 +++++++++++ > tools/testing/radix-tree/test.h | 3 ++ > 6 files changed, 91 insertions(+), 9 deletions(-) > > -- > 2.14.3 >
Ping on this series. Does anyone have any feedback? Matthew? I'd really like to get it into v4.17. We can take it through the libnvdimm tree, if that's easiest.
