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In the huge pages tests, we may have lots of objects being trapped on the freelist as we hold the struct_mutex allowing the free worker no opportunity to recover the backing store. We also have stricter requirements and the desire for large contiguous pages, further increasing the allocation pressure. To reduce the chance of running out of memory, we could either drop the mutex and flush the free worker, or we could release the backing store directly. We do the latter in this patch for simplicity. References: https://bugs.freedesktop.org/show_bug.cgi?id=107254 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Matthew Auld <matthew.william.auld@gmail.com> Reviewed-by: Matthew Auld <matthew.william.auld@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180717082334.18774-1-chris@chris-wilson.co.uk |
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