linux

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History

David S. Miller 8bccf5b313 sparc64: Fix pcr_ops initialization and usage bugs.

Christopher reports that perf_event_print_debug() can crash in uniprocessor
builds.  The crash is due to pcr_ops being NULL.

This happens because pcr_arch_init() is only invoked by smp_cpus_done() which
only executes in SMP builds.

init_hw_perf_events() is closely intertwined with pcr_ops being setup properly,
therefore:

1) Call pcr_arch_init() early on from init_hw_perf_events(), instead of
   from smp_cpus_done().

2) Do not hook up a PMU type if pcr_ops is NULL after pcr_arch_init().

3) Move init_hw_perf_events to a later initcall so that it we will be
   sure to invoke pcr_arch_init() after all cpus are brought up.

Finally, guard the one naked sequence of pcr_ops dereferences in
__global_pmu_self() with an appropriate NULL check.

Reported-by: Christopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

2014-08-11 20:45:12 -07:00

boot

sparc: Add "install" target

2014-08-04 20:45:59 -07:00

configs

perf: Remove PERF_COUNTERS config option

2012-04-26 13:52:52 +02:00

crypto

sparc64: fix sparse warnings in aes_glue.c

2014-05-18 19:01:33 -07:00

include

sparc: Hook up seccomp and getrandom system calls.