[PATCH 02/10] staging: erofs: fix race when the managed cache is enabled

Gao Xiang gaoxiang25 at huawei.com
Thu Nov 22 12:41:15 UTC 2018


Hi Greg,

On 2018/11/22 20:26, Greg Kroah-Hartman wrote:
> Ugh, every page?  Ok, nevermind, I take back my objections.  You all are
> crazy and need to do crazy things like this :)

...Do you have some idea about this? ... I think it is fairly normal... :(

We have a large number of managed workgroups, the current use case is the 4k compressed size,
each compressed page has a workgroup, but erofs also has reclaim paths to free them for low memory cases.

But since the structure (z_erofs_vle_workgroup, erofs_workgroup) is critical,
I need to make it as small as possible.

Thanks,
Gao Xiang


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