On Mon, Nov 30, 2020 at 11:22:32AM +0200, Joonas Lahtinen wrote:
> Quoting Matthew Wilcox (2020-11-27 15:20:06)
> > On Fri, Nov 27, 2020 at 03:06:24PM +0200, Joonas Lahtinen wrote:
> > > Quoting ira.we...@intel.com (2020-11-24 08:07:39)
> > > > From: Ira Weiny
> > > >
> > > > Working through a
On Fri, Nov 27, 2020 at 03:06:24PM +0200, Joonas Lahtinen wrote:
> Quoting ira.we...@intel.com (2020-11-24 08:07:39)
> > From: Ira Weiny
> >
> > Working through a conversion to a call such as kmap_thread() revealed
> > many places where the pattern kmap/memcpy/kunmap occurred.
> >
> > Eric
On Tue, Nov 24, 2020 at 11:21:13AM -0800, Ira Weiny wrote:
> On Tue, Nov 24, 2020 at 02:19:41PM +, Matthew Wilcox wrote:
> > On Mon, Nov 23, 2020 at 10:07:39PM -0800, ira.we...@intel.com wrote:
> > > +static inline void memzero_page(struct page *page, size_t offset, size_t
> > > len)
> > > +{
On Tue, Nov 24, 2020 at 02:19:41PM +, Matthew Wilcox wrote:
> On Mon, Nov 23, 2020 at 10:07:39PM -0800, ira.we...@intel.com wrote:
> > +static inline void memzero_page(struct page *page, size_t offset, size_t
> > len)
> > +{
> > + memset_page(page, 0, offset, len);
> > +}
>
> This is a
On Mon, Nov 23, 2020 at 10:07:39PM -0800, ira.we...@intel.com wrote:
> +static inline void memzero_page(struct page *page, size_t offset, size_t len)
> +{
> + memset_page(page, 0, offset, len);
> +}
This is a less-capable zero_user_segments().
From: Ira Weiny
Working through a conversion to a call such as kmap_thread() revealed
many places where the pattern kmap/memcpy/kunmap occurred.
Eric Biggers, Matthew Wilcox, Christoph Hellwig, Dan Williams, and Al
Viro all suggested putting this code into helper functions. Al Viro
further
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