On Tue, Sep 22, 2020 at 06:05:26PM +0100, Matthew Wilcox wrote:
> On Tue, Sep 22, 2020 at 12:23:45PM -0400, Qian Cai wrote:
> > On Fri, 2020-09-11 at 00:47 +0100, Matthew Wilcox (Oracle) wrote:
> > > Size the uptodate array dynamically to support larger pages in the
> > > page cache. With a 64kB
On Tue, Sep 22, 2020 at 10:00:01PM -0700, Darrick J. Wong wrote:
> On Wed, Sep 23, 2020 at 03:48:59AM +0100, Matthew Wilcox wrote:
> > On Tue, Sep 22, 2020 at 09:06:03PM -0400, Qian Cai wrote:
> > > On Tue, 2020-09-22 at 18:05 +0100, Matthew Wilcox wrote:
> > > > On Tue, Sep 22, 2020 at 12:23:45PM
On Wed, 2020-09-23 at 03:48 +0100, Matthew Wilcox wrote:
> I'm out of ideas. Maybe I'll wake up with a better idea in the morning.
> I've been trying to reproduce this on x86 with a 1kB block size
> filesystem, and haven't been able to yet. Maybe I'll try to setup a
> powerpc cross-compilation
On Wed, Sep 23, 2020 at 03:48:59AM +0100, Matthew Wilcox wrote:
> On Tue, Sep 22, 2020 at 09:06:03PM -0400, Qian Cai wrote:
> > On Tue, 2020-09-22 at 18:05 +0100, Matthew Wilcox wrote:
> > > On Tue, Sep 22, 2020 at 12:23:45PM -0400, Qian Cai wrote:
> > > > On Fri, 2020-09-11 at 00:47 +0100,
On Tue, Sep 22, 2020 at 09:06:03PM -0400, Qian Cai wrote:
> On Tue, 2020-09-22 at 18:05 +0100, Matthew Wilcox wrote:
> > On Tue, Sep 22, 2020 at 12:23:45PM -0400, Qian Cai wrote:
> > > On Fri, 2020-09-11 at 00:47 +0100, Matthew Wilcox (Oracle) wrote:
> > > > Size the uptodate array dynamically to
On Tue, 2020-09-22 at 18:05 +0100, Matthew Wilcox wrote:
> On Tue, Sep 22, 2020 at 12:23:45PM -0400, Qian Cai wrote:
> > On Fri, 2020-09-11 at 00:47 +0100, Matthew Wilcox (Oracle) wrote:
> > > Size the uptodate array dynamically to support larger pages in the
> > > page cache. With a 64kB page,
On Tue, 2020-09-22 at 18:05 +0100, Matthew Wilcox wrote:
> On Tue, Sep 22, 2020 at 12:23:45PM -0400, Qian Cai wrote:
> > On Fri, 2020-09-11 at 00:47 +0100, Matthew Wilcox (Oracle) wrote:
> > > Size the uptodate array dynamically to support larger pages in the
> > > page cache. With a 64kB page,
On Tue, Sep 22, 2020 at 12:23:45PM -0400, Qian Cai wrote:
> On Fri, 2020-09-11 at 00:47 +0100, Matthew Wilcox (Oracle) wrote:
> > Size the uptodate array dynamically to support larger pages in the
> > page cache. With a 64kB page, we're only saving 8 bytes per page today,
> > but with a 2MB
On Fri, 2020-09-11 at 00:47 +0100, Matthew Wilcox (Oracle) wrote:
> Size the uptodate array dynamically to support larger pages in the
> page cache. With a 64kB page, we're only saving 8 bytes per page today,
> but with a 2MB maximum page size, we'd have to allocate more than 4kB
> per page. Add
On Fri, Sep 11, 2020 at 12:47:03AM +0100, Matthew Wilcox (Oracle) wrote:
> Size the uptodate array dynamically to support larger pages in the
> page cache. With a 64kB page, we're only saving 8 bytes per page today,
> but with a 2MB maximum page size, we'd have to allocate more than 4kB
> per
On Fri, Sep 11, 2020 at 12:47:03AM +0100, Matthew Wilcox (Oracle) wrote:
> Size the uptodate array dynamically to support larger pages in the
> page cache. With a 64kB page, we're only saving 8 bytes per page today,
> but with a 2MB maximum page size, we'd have to allocate more than 4kB
> per
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