Re: [PATCH] vmscan: synchronous lumpy reclaim don't callcongestion_wait()

[Wu Fengguang]

> If the system 512MB memory, DEF_PRIORITY mean 128kB scan and It takes 4096
> shrink_page_list() calls to scan 128kB (i.e. 128kB/32=4096) memory.

Err you must forgot the page size.

128kB means 128kB/4kB=32 pages which fit exactly into one
SWAP_CLUSTER_MAX batch. The shrink_page_list() call times
has nothing to do DEF_PRIORITY.

Thanks,
Fengguang
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