Files
linux/kernel
Steven Rostedt 22f470f8da ring-buffer: use BUF_PAGE_HDR_SIZE in calculating index
The index of the event is found by masking PAGE_MASK to it and
subtracting the header size. Currently the header size is calculate
by PAGE_SIZE - BUF_PAGE_SIZE, when we already have a macro
BUF_PAGE_HDR_SIZE to define it.

If we want to change BUF_PAGE_SIZE to something less than filling
the rest of the page (this is done for debugging), then we break
the algorithm to find the index.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2009-06-16 21:19:23 -04:00
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