On Thu, Jul 02, 2020 at 05:16:43PM +0200, Andreas Gruenbacher wrote:
> On Wed, Jun 24, 2020 at 2:35 PM Andreas Gruenbacher
> wrote:
> > On Mon, Jun 22, 2020 at 8:13 PM Matthew Wilcox wrote:
> > > On Mon, Jun 22, 2020 at 04:35:05PM +0200, Andreas Gruenbacher wrote:
> > > > I'm fine with not movin
On Wed, Jun 24, 2020 at 2:35 PM Andreas Gruenbacher wrote:
> On Mon, Jun 22, 2020 at 8:13 PM Matthew Wilcox wrote:
> > On Mon, Jun 22, 2020 at 04:35:05PM +0200, Andreas Gruenbacher wrote:
> > > I'm fine with not moving that functionality into the VFS. The problem
> > > I have in gfs2 is that taki
On Mon, Jun 22, 2020 at 8:13 PM Matthew Wilcox wrote:
> On Mon, Jun 22, 2020 at 04:35:05PM +0200, Andreas Gruenbacher wrote:
> > I'm fine with not moving that functionality into the VFS. The problem
> > I have in gfs2 is that taking glocks is really expensive. Part of that
> > overhead is accident
On Tue, Jun 23, 2020 at 2:52 AM Dave Chinner wrote:
> On Mon, Jun 22, 2020 at 04:35:05PM +0200, Andreas Gruenbacher wrote:
> > On Mon, Jun 22, 2020 at 2:32 AM Dave Chinner wrote:
> > > On Fri, Jun 19, 2020 at 08:50:36AM -0700, Matthew Wilcox wrote:
> > > >
> > > > This patch lifts the IOCB_CACHED
On Mon, Jun 22, 2020 at 08:18:57PM +0100, Matthew Wilcox wrote:
> On Mon, Jun 22, 2020 at 10:32:15AM +1000, Dave Chinner wrote:
> > On Fri, Jun 19, 2020 at 08:50:36AM -0700, Matthew Wilcox wrote:
> > >
> > > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > > The advantage
On Mon, Jun 22, 2020 at 04:35:05PM +0200, Andreas Gruenbacher wrote:
> On Mon, Jun 22, 2020 at 2:32 AM Dave Chinner wrote:
> > On Fri, Jun 19, 2020 at 08:50:36AM -0700, Matthew Wilcox wrote:
> > >
> > > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > > The advantage of t
On Mon, Jun 22, 2020 at 10:32:15AM +1000, Dave Chinner wrote:
> On Fri, Jun 19, 2020 at 08:50:36AM -0700, Matthew Wilcox wrote:
> >
> > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > The advantage of this patch is that we can avoid taking any filesystem
> > lock, as lon
On Mon, Jun 22, 2020 at 04:35:05PM +0200, Andreas Gruenbacher wrote:
> I'm fine with not moving that functionality into the VFS. The problem
> I have in gfs2 is that taking glocks is really expensive. Part of that
> overhead is accidental, but we definitely won't be able to fix it in
> the short te
On Mon, Jun 22, 2020 at 2:32 AM Dave Chinner wrote:
> On Fri, Jun 19, 2020 at 08:50:36AM -0700, Matthew Wilcox wrote:
> >
> > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > The advantage of this patch is that we can avoid taking any filesystem
> > lock, as long as the p
On Sat, Jun 20, 2020 at 12:15:21PM -0700, Matthew Wilcox wrote:
> On Sat, Jun 20, 2020 at 09:19:37AM +0300, Amir Goldstein wrote:
> > On Fri, Jun 19, 2020 at 6:52 PM Matthew Wilcox wrote:
> > > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > > The advantage of this patch
On Fri, Jun 19, 2020 at 08:50:36AM -0700, Matthew Wilcox wrote:
>
> This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> The advantage of this patch is that we can avoid taking any filesystem
> lock, as long as the pages being accessed are in the cache (and we don't
> need to r
[CC: Dave Chinner, Jan Kara, xfs]
On Sat, Jun 20, 2020 at 10:15 PM Matthew Wilcox wrote:
>
> On Sat, Jun 20, 2020 at 09:19:37AM +0300, Amir Goldstein wrote:
> > On Fri, Jun 19, 2020 at 6:52 PM Matthew Wilcox wrote:
> > > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> >
On Sat, Jun 20, 2020 at 09:19:37AM +0300, Amir Goldstein wrote:
> On Fri, Jun 19, 2020 at 6:52 PM Matthew Wilcox wrote:
> > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > The advantage of this patch is that we can avoid taking any filesystem
> > lock, as long as the pag
On Fri, Jun 19, 2020 at 6:52 PM Matthew Wilcox wrote:
>
>
> This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> The advantage of this patch is that we can avoid taking any filesystem
> lock, as long as the pages being accessed are in the cache (and we don't
> need to readahead
Matthew,
On 6/19/20 1:12 PM, Matthew Wilcox wrote:
> On Fri, Jun 19, 2020 at 07:06:19PM +, Chaitanya Kulkarni wrote:
>> On 6/19/20 8:50 AM, Matthew Wilcox wrote:
>>> This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
>>> The advantage of this patch is that we can avoid taki
On Fri, Jun 19, 2020 at 07:06:19PM +, Chaitanya Kulkarni wrote:
> On 6/19/20 8:50 AM, Matthew Wilcox wrote:
> > This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> > The advantage of this patch is that we can avoid taking any filesystem
> > lock, as long as the pages being
On 6/19/20 8:50 AM, Matthew Wilcox wrote:
> This patch lifts the IOCB_CACHED idea expressed by Andreas to the VFS.
> The advantage of this patch is that we can avoid taking any filesystem
> lock, as long as the pages being accessed are in the cache (and we don't
> need to readahead any pages into t
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