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| author | Frederic Weisbecker <fweisbec@gmail.com> | 2010-08-22 20:05:22 +0200 |
|---|---|---|
| committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-08-22 20:43:17 +0200 |
| commit | d2009c5130b627d3efccae8ed36cd43450c8486d (patch) | |
| tree | 22afece12b12600d9132ab76f8fe74425548351d /arch/xtensa/include/asm/irq_regs.h | |
| parent | f4e7ac0a233a4dc9b51345546ab69c64bb43e2c1 (diff) | |
perf: Keep track of the max depth of a callchain
In order to implement callchains collapsing, we need to keep
track of the maximum depth in a histogram tree of callchains.
This way we'll avoid allocating an arbitrary temporary buffer
size on callchain merge time.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Christoph Hellwig <hch@infradead.org>
Diffstat (limited to 'arch/xtensa/include/asm/irq_regs.h')
0 files changed, 0 insertions, 0 deletions