lkml.org 
[lkml]   [2018]   [May]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [PATCH 0/5] fix radix tree multi-order iteration race
    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.

    \
     
     \ /
      Last update: 2018-05-08 19:46    [W:3.619 / U:0.044 seconds]
    ©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site