On Mon, Jan 16, 2023 at 01:18:07PM +, Matthew Wilcox wrote:
> Essentially reverting 44835d20b2a0.
Yep.
> Although we retain the merging of
> the lock & get functions via the use of FGP flags. Let me think about
> it for a day.
Yes. But looking at the code again I wonder if even that is
On Sun, Jan 15, 2023 at 11:34:26PM -0800, Christoph Hellwig wrote:
> We could do that. But while reading what Darrick wrote I came up with
> another idea I quite like. Just split the FGP_ENTRY handling into
> a separate helper. The logic and use cases are quite different from
> the normal page
On Mon, Jan 16, 2023 at 05:46:01AM +, Matthew Wilcox wrote:
> > OFC now I wonder, can we simply say that the return value is "The found
> > folio or NULL if you set FGP_ENTRY; or the found folio or a negative
> > errno if you don't" ?
>
> Erm ... I would rather not!
Agreed.
>
> Part of me
On Sun, Jan 15, 2023 at 09:06:50AM -0800, Darrick J. Wong wrote:
> On Sun, Jan 15, 2023 at 09:01:22AM -0800, Darrick J. Wong wrote:
> > On Tue, Jan 10, 2023 at 01:34:16PM +, Matthew Wilcox wrote:
> > > On Tue, Jan 10, 2023 at 12:46:45AM -0800, Christoph Hellwig wrote:
> > > > On Mon, Jan 09,
On Sun, Jan 15, 2023 at 09:01:22AM -0800, Darrick J. Wong wrote:
> On Tue, Jan 10, 2023 at 01:34:16PM +, Matthew Wilcox wrote:
> > On Tue, Jan 10, 2023 at 12:46:45AM -0800, Christoph Hellwig wrote:
> > > On Mon, Jan 09, 2023 at 01:46:42PM +0100, Andreas Gruenbacher wrote:
> > > > We can handle
On Tue, Jan 10, 2023 at 01:34:16PM +, Matthew Wilcox wrote:
> On Tue, Jan 10, 2023 at 12:46:45AM -0800, Christoph Hellwig wrote:
> > On Mon, Jan 09, 2023 at 01:46:42PM +0100, Andreas Gruenbacher wrote:
> > > We can handle that by adding a new IOMAP_NOCREATE iterator flag and
> > > checking for
On Thu, Jan 12, 2023 at 07:52:41AM +1100, Dave Chinner wrote:
> Exposing internal implementation details in the API
> that is supposed to abstract away the internal implementation
> details from users doesn't seem like a great idea to me.
While I somewhat agree with the concern of leaking the
On Wed, Jan 11, 2023 at 07:36:26PM +, Matthew Wilcox wrote:
> On Tue, Jan 10, 2023 at 07:24:27AM -0800, Christoph Hellwig wrote:
> > On Tue, Jan 10, 2023 at 01:34:16PM +, Matthew Wilcox wrote:
> > > > Exactly. And as I already pointed out in reply to Dave's original
> > > > patch what we
On Tue, Jan 10, 2023 at 07:24:27AM -0800, Christoph Hellwig wrote:
> On Tue, Jan 10, 2023 at 01:34:16PM +, Matthew Wilcox wrote:
> > > Exactly. And as I already pointed out in reply to Dave's original
> > > patch what we really should be doing is returning an ERR_PTR from
> > >
On Tue, Jan 10, 2023 at 01:34:16PM +, Matthew Wilcox wrote:
> > Exactly. And as I already pointed out in reply to Dave's original
> > patch what we really should be doing is returning an ERR_PTR from
> > __filemap_get_folio instead of reverse-engineering the expected
> > error code.
>
>
On Tue, Jan 10, 2023 at 12:46:45AM -0800, Christoph Hellwig wrote:
> On Mon, Jan 09, 2023 at 01:46:42PM +0100, Andreas Gruenbacher wrote:
> > We can handle that by adding a new IOMAP_NOCREATE iterator flag and
> > checking for that in iomap_get_folio(). Your patch then turns into
> > the below.
>
On Mon, Jan 09, 2023 at 01:46:42PM +0100, Andreas Gruenbacher wrote:
> We can handle that by adding a new IOMAP_NOCREATE iterator flag and
> checking for that in iomap_get_folio(). Your patch then turns into
> the below.
Exactly. And as I already pointed out in reply to Dave's original
patch
Am Di., 10. Jan. 2023 um 09:52 Uhr schrieb Christoph Hellwig
:
> On Mon, Jan 09, 2023 at 01:46:42PM +0100, Andreas Gruenbacher wrote:
> > We can handle that by adding a new IOMAP_NOCREATE iterator flag and
> > checking for that in iomap_get_folio(). Your patch then turns into
> > the below.
>
>
On Sun, Jan 8, 2023 at 10:33 PM Dave Chinner wrote:
> On Sun, Jan 08, 2023 at 08:40:28PM +0100, Andreas Gruenbacher wrote:
> > Add an iomap_get_folio() helper that gets a folio reference based on
> > an iomap iterator and an offset into the address space. Use it in
> > iomap_write_begin().
> >
>
On Sun, Jan 08, 2023 at 08:40:28PM +0100, Andreas Gruenbacher wrote:
> Add an iomap_get_folio() helper that gets a folio reference based on
> an iomap iterator and an offset into the address space. Use it in
> iomap_write_begin().
>
> Signed-off-by: Andreas Gruenbacher
> Reviewed-by: Darrick J.
Add an iomap_get_folio() helper that gets a folio reference based on
an iomap iterator and an offset into the address space. Use it in
iomap_write_begin().
Signed-off-by: Andreas Gruenbacher
Reviewed-by: Darrick J. Wong
Reviewed-by: Christoph Hellwig
---
fs/iomap/buffered-io.c | 39
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