ring-buffer: remove unneeded conditional in rb_reserve_next

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The code in __rb_reserve_next checks on page overflow if it is the
original commiter and then resets the page back to the original
setting.  Although this is fine, and the code is correct, it is
a bit fragil. Some experimental work I did breaks it easily.

The better and more robust solution is to have all commiters that
overflow the page, simply subtract what they added.

[ Impact: more robust ring buffer account management ]

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

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Steven Rostedt 2009-05-06 10:26:45 -04:00 • committed by Steven Rostedt

parent 35cf723e99

commit 8e7abf1c62

1 changed files with 3 additions and 5 deletions

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kernel/trace/ring_buffer.c

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