search for: lockevents

Displaying 2 results from an estimated 2 matches for "lockevents".

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2020 Jul 02
1
[PATCH 6/8] powerpc/pseries: implement paravirt qspinlocks for SPLPAR
...1c Waiman Long 2019-04-04 73 if (id >= lockevent_num) fb346fd9fc081c Waiman Long 2019-04-04 74 return -EBADF; fb346fd9fc081c Waiman Long 2019-04-04 75 fb346fd9fc081c Waiman Long 2019-04-04 76 for_each_possible_cpu(cpu) fb346fd9fc081c Waiman Long 2019-04-04 77 sum += per_cpu(lockevents[id], cpu); fb346fd9fc081c Waiman Long 2019-04-04 78 len = snprintf(buf, sizeof(buf) - 1, "%llu\n", sum); fb346fd9fc081c Waiman Long 2019-04-04 79 fb346fd9fc081c Waiman Long 2019-04-04 80 return simple_read_from_buffer(user_buf, count, ppos, buf, len); fb346fd9fc081c Waiman Lon...
2020 Jul 02
12
[PATCH 0/8] powerpc: queued spinlocks and rwlocks
This series adds an option to use queued spinlocks for powerpc, and makes it the default for the Book3S-64 subarch. This effort starts with the generic code so it's very simple but still very performant. There are optimisations that can be made to slowpaths, but I think it's better to attack those incrementally if/when we find things, and try to add the improvements to generic code as