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Beau Belgrave
39d6d08b2e
User processes may require many events and when they do the cache performance of a byte index status check is less ideal than a bit index. The previous event limit per-page was 4096, the new limit is 32,768. This change adds a bitwise index to the user_reg struct. Programs check that the bit at status_bit has a bit set within the status page(s). Link: https://lkml.kernel.org/r/[email protected] Link: https://lore.kernel.org/all/[email protected]/ Suggested-by: Mathieu Desnoyers <[email protected]> Signed-off-by: Beau Belgrave <[email protected]> Signed-off-by: Steven Rostedt (Google) <[email protected]>