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| author | Steven Rostedt (Google) <[email protected]> | 2022-09-29 09:50:29 -0400 |
|---|---|---|
| committer | Steven Rostedt (Google) <[email protected]> | 2022-09-29 10:17:18 -0400 |
| commit | 01b2a52171735c6eea80ee2f355f32bea6c41418 (patch) | |
| tree | daa9d3bb9f277cad521a324f7be355b077740122 /lib/mpi/mpi-sub-ui.c | |
| parent | f3ddb74ad0790030c9592229fb14d8c451f4e9a8 (diff) | |
tracing: Add ioctl() to force ring buffer waiters to wake up
If a process is waiting on the ring buffer for data, there currently isn't
a clean way to force it to wake up. Add an ioctl call that will force any
tasks that are waiting on the trace_pipe_raw file to wake up.
Link: https://lkml.kernel.org/r/[email protected]
Cc: [email protected]
Cc: Ingo Molnar <[email protected]>
Cc: Andrew Morton <[email protected]>
Fixes: e30f53aad2202 ("tracing: Do not busy wait in buffer splice")
Signed-off-by: Steven Rostedt (Google) <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-sub-ui.c')
0 files changed, 0 insertions, 0 deletions