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authorSteven Rostedt (Red Hat) <rostedt@goodmis.org>2015-11-23 17:35:24 -0500
committerSteven Rostedt <rostedt@goodmis.org>2015-11-24 09:27:25 -0500
commitbd1b7cd360f529394936f28746eb4aaa12d6770a (patch)
tree7ff2c87020172dee449997bda223f1900b43a5f3 /kernel/debug
parentb81f472a208d3e2b4392faa6d17037a89442f4ce (diff)
downloadlinux-bd1b7cd360f529394936f28746eb4aaa12d6770a.tar.bz2
ring-buffer: Put back the length if crossed page with add_timestamp
Commit fcc742eaad7c "ring-buffer: Add event descriptor to simplify passing data" added a descriptor that holds various data instead of passing around several variables through parameters. The problem was that one of the parameters was modified in a function and the code was designed not to have an effect on that modified parameter. Now that the parameter is a descriptor and any modifications to it are non-volatile, the size of the data could be unnecessarily expanded. Remove the extra space added if a timestamp was added and the event went across the page. Cc: stable@vger.kernel.org # 4.3+ Fixes: fcc742eaad7c "ring-buffer: Add event descriptor to simplify passing data" Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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