[v1] blk-cgroup: cleanup and bugfixs in blk-cgroup

[PATCH 0/3] blk-cgroup: cleanup and bugfixs in blk-cgroup

Zheng Qixing posted 3 patches 1 month ago

Diff against v2
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block/blk-cgroup.c | 63 +++++++++++++++++++++++-----------------------
1 file changed, 31 insertions(+), 32 deletions(-)

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[PATCH 0/3] blk-cgroup: cleanup and bugfixs in blk-cgroup

Posted by Zheng Qixing 1 month ago

From: Zheng Qixing <zhengqixing@huawei.com>

Hi,

This series contains three patches.

Patch 1 is a cleanup change which extracts the common teardown sequence
into a helper.

Patches 2 and 3 fix a use-after-free issue triggered by the concurrency
between switching the device I/O scheduler and blkcg deletion.

Zheng Qixing (3):
  blk-cgroup: factor policy pd teardown loop into helper
  blk-cgroup: fix uaf in blkcg_activate_policy() racing with
    blkg_free_workfn()
  blk-cgroup: skip dying blkg in blkcg_activate_policy()

 block/blk-cgroup.c | 63 +++++++++++++++++++++++-----------------------
 1 file changed, 31 insertions(+), 32 deletions(-)

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2.39.2