On Fri, Jan 24, 2020 at 07:57:40PM -0800, Randy Dunlap wrote:
> > +``readahead``
> > + called by the VM to read pages associated with the address_space
> > + object. The pages are consecutive in the page cache and are
> > +locked. The implementation should decrement the page refcount
On Wed, Jan 29, 2020 at 11:24:56AM +1100, Dave Chinner wrote:
> On Fri, Jan 24, 2020 at 05:35:45PM -0800, Matthew Wilcox wrote:
> > From: "Matthew Wilcox (Oracle)"
> >
> > This replaces ->readpages with a saner interface:
> > - Return the number of pages not read instead of an ignored error code
On Fri, Jan 24, 2020 at 05:35:45PM -0800, Matthew Wilcox wrote:
> From: "Matthew Wilcox (Oracle)"
>
> This replaces ->readpages with a saner interface:
> - Return the number of pages not read instead of an ignored error code.
> - Pages are already in the page cache when ->readahead is called.
>
On 1/24/20 5:35 PM, Matthew Wilcox wrote:
> diff --git a/Documentation/filesystems/vfs.rst
> b/Documentation/filesystems/vfs.rst
> index 7d4d09dd5e6d..bb06fb7b120b 100644
> --- a/Documentation/filesystems/vfs.rst
> +++ b/Documentation/filesystems/vfs.rst
> @@ -706,6 +706,8 @@ cache in your filesys
From: "Matthew Wilcox (Oracle)"
This replaces ->readpages with a saner interface:
- Return the number of pages not read instead of an ignored error code.
- Pages are already in the page cache when ->readahead is called.
- Implementation looks up the pages in the page cache instead of
having
