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| author | Oleg Nesterov <oleg@redhat.com> | 2013-10-19 16:18:28 (GMT) |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2013-10-31 10:16:18 (GMT) |
| commit | 6a716c90a51338009c3bc1f460829afaed8f922d (patch) | |
| tree | 85e821a30e0f9350a2b67ff94d758632eec92689 /mm/zswap.c | |
| parent | 4c4e4f61368164f326fe59e2156c70d7faa72c17 (diff) | |
| download | linux-6a716c90a51338009c3bc1f460829afaed8f922d.tar.xz | |
hung_task debugging: Add tracepoint to report the hang
Currently check_hung_task() prints a warning if it detects the
problem, but it is not convenient to watch the system logs if
user-space wants to be notified about the hang.
Add the new trace_sched_process_hang() into check_hung_task(),
this way a user-space monitor can easily wait for the hang and
potentially resolve a problem.
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: Dave Sullivan <dsulliva@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20131019161828.GA7439@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/zswap.c')
0 files changed, 0 insertions, 0 deletions