ring-buffer: disable all cpu buffers when one finds a problem

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Currently the way RB_WARN_ON works, is to disable either the current
CPU buffer or all CPU buffers, depending on whether a ring_buffer or
ring_buffer_per_cpu struct was passed into the macro.

Most users of the RB_WARN_ON pass in the CPU buffer, so only the one
CPU buffer gets disabled but the rest are still active. This may
confuse users even though a warning is sent to the console.

This patch changes the macro to disable the entire buffer even if
the CPU buffer is passed in.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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This commit is contained in:

Steven Rostedt 2009-09-03 19:53:46 -04:00 • committed by Steven Rostedt

parent a1863c212b

commit 077c5407cd

1 changed files with 13 additions and 8 deletions

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21

kernel/trace/ring_buffer.c

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