diff options
| -rw-r--r-- | cont.c | 12 |
1 files changed, 11 insertions, 1 deletions
@@ -433,6 +433,12 @@ fiber_pool_allocate_memory(size_t * count, size_t stride) *count = (*count) >> 1; } else { +#if defined(MADV_FREE_REUSE) + // On Mac MADV_FREE_REUSE is necessary for the task_info api + // to keep the accounting accurate as possible when a page is marked as reusable + // it can possibly not occuring at first call thus re-iterating if necessary. + while (madvise(base, (*count)*stride, MADV_FREE_REUSE) == -1 && errno == EAGAIN); +#endif return base; } #endif @@ -649,7 +655,11 @@ fiber_pool_stack_free(struct fiber_pool_stack * stack) #elif defined(POSIX_MADV_DONTNEED) posix_madvise(base, size, POSIX_MADV_DONTNEED); #elif defined(MADV_FREE_REUSABLE) - madvise(base, size, MADV_FREE_REUSABLE); + // Acknowledge the kernel down to the task info api we make this + // page reusable for future use. + // As for MADV_FREE_REUSE below we ensure in the rare occassions the task was not + // completed at the time of the call to re-iterate. + while (madvise(base, size, MADV_FREE_REUSABLE) == -1 && errno == EAGAIN); #elif defined(MADV_FREE) madvise(base, size, MADV_FREE); #elif defined(MADV_DONTNEED) |