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regmap: async: Add tracepoints for async I/O
authorMark Brown <broonie@opensource.wolfsonmicro.com>
Thu, 21 Feb 2013 19:05:48 +0000 (19:05 +0000)
committerMark Brown <broonie@opensource.wolfsonmicro.com>
Mon, 4 Mar 2013 02:28:29 +0000 (10:28 +0800)
Trace when we start and complete async writes, and when we start and
finish blocking for their completion. This is useful for performance
analysis of the resulting I/O patterns.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

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