lkml.org 
[lkml]   [2022]   [Jan]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v9 10/10] fsdax: set a CoW flag when associate reflink mappings
On Sun, Dec 26, 2021 at 10:34:39PM +0800, Shiyang Ruan wrote:
> +#define FS_DAX_MAPPING_COW 1UL
> +
> +#define MAPPING_SET_COW(m) (m = (struct address_space *)FS_DAX_MAPPING_COW)
> +#define MAPPING_TEST_COW(m) (((unsigned long)m & FS_DAX_MAPPING_COW) == \
> + FS_DAX_MAPPING_COW)

These really should be inline functions and probably use lower case
names.

But different question, how does this not conflict with:

#define PAGE_MAPPING_ANON 0x1

in page-flags.h?

Either way I think this flag should move to page-flags.h and be
integrated with the PAGE_MAPPING_FLAGS infrastucture.

\
 
 \ /
  Last update: 2022-01-20 09:59    [W:3.796 / U:0.508 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site