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| author |   Tahsin Erdogan <tahsin@google.com> | 2017-01-31 22:36:50 -0800 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2017-02-01 15:31:22 -0700 |
| commit | bbfc3c5d6c7882dc65c1230e781644e35c29839f (patch) | |
| tree | d7ccecb7ef61bac4a6d5f93c703ad2df65c77a2a /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | block: Update comments that refer to __bio_map_user() and bio_map_user() (diff) | |
| download | wireguard-linux-bbfc3c5d6c7882dc65c1230e781644e35c29839f.tar.xz wireguard-linux-bbfc3c5d6c7882dc65c1230e781644e35c29839f.zip | |
block: queue lock must be acquired when iterating over rls
blk_set_queue_dying() does not acquire queue lock before it calls
blk_queue_for_each_rl(). This allows a racing blkg_destroy() to
remove blkg->q_node from the linked list and have
blk_queue_for_each_rl() loop infitely over the removed blkg->q_node
list node.
Signed-off-by: Tahsin Erdogan <tahsin@google.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions