Re: [PATCH RFCv2] mm/madvise: introduce MADV_POPULATE_(READ|WRITE) to prefault/prealloc memory
From: David Hildenbrand <hidden>
Date: 2021-03-15 12:26:56
Also in:
linux-api, linux-arch, linux-mips, lkml
On 15.03.21 13:22, Kirill A. Shutemov wrote:
On Mon, Mar 08, 2021 at 05:45:20PM +0100, David Hildenbrand wrote:quoted
+ case -EHWPOISON: /* Skip over any poisoned pages. */ + start += PAGE_SIZE; + continue;Why is it good approach? It's not abvious to me.
My main motivation was to simplify return code handling. I don't want to return -EHWPOISON to user space and I don't want to convert it into something misleading like -ENOMEM or -EINVAL. So I decided to handle such stuff internally. What would be you take on that? -- Thanks, David / dhildenb