Messages in this thread | | | From | Alex Elder <> | Subject | [PATCH 0/5] printk: more log flag simplification | Date | Thu, 17 Jul 2014 12:59:08 -0500 |
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This series rearranges the log code in such a way that the LOG_CONT and LOG_PREFIX log record flags can be eliminated entirely. The result should be considerably easier to understand than before. It builds on another recently-posted series of patches: https://lkml.org/lkml/2014/7/17/363
The first patch exploits the fact that LOG_CONT and LOG_NEWLINE are inverses, and uses LOG_NEWLINE (or its negation) anywhere LOG_CONT is used. As a result, LOG_CONT is no longer needed, so it's eliminated.
The next three patches together eliminate LOG_PREFIX. The effect of LOG_PREFIX is to complete the previous log entry before recording a new one. Patch 2 arranges to do this directly, marking the previous log record with LOG_NEWLINE whenever a new record is presented with LOG_PREFIX set. Patch 3 stops saving LOG_PREFIX in any log records, and patch 4 finally gets rid of LOG_PREFIX.
The last patch is just some cleanup of the code now that it's gone through this transformation.
-Alex
This series is available here: http://git.linaro.org/landing-teams/working/broadcom/kernel.git Branch review/more-printk-flags It is based on branch review/printk-flags-v2 in that same repository.
Alex Elder (5): printk: kill LOG_CONT printk: update previous message for LOG_PREFIX printk: stop actually recording LOG_PREFIX printk: kill LOG_PREFIX printk: rename LOG_NEWLINE and tidy up
kernel/printk/printk.c | 135 +++++++++++++++++++++++++++++-------------------- 1 file changed, 81 insertions(+), 54 deletions(-)
-- 1.9.1
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