ring-buffer: Set __GFP_NORETRY flag for ring buffer allocating process

The tracing ring buffer is allocated from kernel memory. While
allocating a large chunk of memory, OOM might happen which destabilizes
the system. Thus random processes might get killed during the
allocation.

This patch adds __GFP_NORETRY flag to the ring buffer allocation calls
to make it fail more gracefully if the system will not be able to
complete the allocation request.

Acked-by: David Rientjes <[email protected]>
Signed-off-by: Vaibhav Nagarnaik <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Frederic Weisbecker <[email protected]>
Cc: Michael Rubin <[email protected]>
Cc: David Sharp <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Steven Rostedt <[email protected]>

0 files changed, 0 insertions, 0 deletions