[dm-devel] [External] Re: [PATCH] dm writecache: skip writecache_wait for pmem mode

Huaisheng HS1 Ye yehs1 at lenovo.com
Wed Sep 18 12:48:19 UTC 2019


> -----Original Message-----
> From: Mikulas Patocka <mpatocka at redhat.com>
> Sent: Wednesday, September 18, 2019 6:24 PM
> The dm-writecache target is supposed to optimize writes, not reads.
> Normally, there won't be any reads following a write, because the data would be
> stored in the cache in RAM.
> 
> Mikulas

Got it, Thanks for pointing that out.

Cheers,
Huaisheng Ye | 叶怀胜
Linux kernel | Lenovo DCG




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