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| author | Aaron Tomlin <atomlin@redhat.com> | 2014-06-23 13:22:05 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-06-23 16:47:44 -0700 |
| commit | f3aca3d09525f87731ba6b892c9b010570bc54b4 (patch) | |
| tree | 80c80be186f7bac74cb548444562ae6890938d83 /arch/sparc/kernel/prom_32.c | |
| parent | 88e15ce402c58f41037752da092683e90826742a (diff) | |
| download | op-kernel-dev-f3aca3d09525f87731ba6b892c9b010570bc54b4.zip op-kernel-dev-f3aca3d09525f87731ba6b892c9b010570bc54b4.tar.gz | |
nmi: provide the option to issue an NMI back trace to every cpu but current
Sometimes it is preferred not to use the trigger_all_cpu_backtrace()
routine when one wants to avoid capturing a back trace for current. For
instance if one was previously captured recently.
This patch provides a new routine namely
trigger_allbutself_cpu_backtrace() which offers the flexibility to issue
an NMI to every cpu but current and capture a back trace accordingly.
Patch x86 and sparc to support new routine.
[dzickus@redhat.com: add stub in #else clause]
[dzickus@redhat.com: don't print message in single processor case, wrap with get/put_cpu based on Oleg's suggestion]
[sfr@canb.auug.org.au: undo C99ism]
Signed-off-by: Aaron Tomlin <atomlin@redhat.com>
Signed-off-by: Don Zickus <dzickus@redhat.com>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Mateusz Guzik <mguzik@redhat.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc/kernel/prom_32.c')
0 files changed, 0 insertions, 0 deletions
