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| author | Trond Myklebust <[email protected]> | 2025-02-01 20:00:02 +0000 |
|---|---|---|
| committer | Anna Schumaker <[email protected]> | 2025-02-19 21:45:24 +0000 |
| commit | 5bbd6e863b15a85221e49b9bdb2d5d8f0bb91f3d (patch) | |
| tree | d2c388f9622009c15c34384e080bff8c842913ef /tools/perf/scripts/python/flamegraph.py | |
| parent | NFS: Adjust delegated timestamps for O_DIRECT reads and writes (diff) | |
| download | kernel-5bbd6e863b15a85221e49b9bdb2d5d8f0bb91f3d.tar.gz kernel-5bbd6e863b15a85221e49b9bdb2d5d8f0bb91f3d.zip | |
SUNRPC: Prevent looping due to rpc_signal_task() races
If rpc_signal_task() is called while a task is in an rpc_call_done()
callback function, and the latter calls rpc_restart_call(), the task can
end up looping due to the RPC_TASK_SIGNALLED flag being set without the
tk_rpc_status being set.
Removing the redundant mechanism for signalling the task fixes the
looping behaviour.
Reported-by: Li Lingfeng <[email protected]>
Fixes: 39494194f93b ("SUNRPC: Fix races with rpc_killall_tasks()")
Signed-off-by: Trond Myklebust <[email protected]>
Reviewed-by: Jeff Layton <[email protected]>
Signed-off-by: Anna Schumaker <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions