On Wed, Dec 23, 2020 at 08:54:01AM +, Christoph Hellwig wrote:
> On Wed, Dec 23, 2020 at 04:48:20PM +0800, Huang Jianan wrote:
> > Hi Christoph,
> >
> > The reason we use dio is because we need to deploy the patch on some early
> > kernel versions, and we don't pay much attention to the
On Wed, Dec 23, 2020 at 04:48:20PM +0800, Huang Jianan wrote:
> Hi Christoph,
>
> The reason we use dio is because we need to deploy the patch on some early
> kernel versions, and we don't pay much attention to the change of iomap.
No, that is never an excuse for upstream development.
Hi Christoph,
The reason we use dio is because we need to deploy the patch on some
early kernel versions, and we don't pay much attention to the change of
iomap. Anyway, I will study the problem mentioned by Gao Xiang and try
to convert the current patch to iomap.
Thanks,
Jianan
On Wed,
On Wed, Dec 23, 2020 at 03:39:01AM +0800, Gao Xiang wrote:
> Hi Christoph,
>
> On Tue, Dec 22, 2020 at 02:22:34PM +, Christoph Hellwig wrote:
> > Please do not add new callers of __blockdev_direct_IO and use the modern
> > iomap variant instead.
>
> We've talked about this topic before. The
Hi Christoph,
On Tue, Dec 22, 2020 at 02:22:34PM +, Christoph Hellwig wrote:
> Please do not add new callers of __blockdev_direct_IO and use the modern
> iomap variant instead.
We've talked about this topic before. The current status is that iomap
doesn't support tail-packing inline data yet
Please do not add new callers of __blockdev_direct_IO and use the modern
iomap variant instead.
Hi Jianan,
On Mon, Dec 14, 2020 at 10:04:27PM +0800, Huang Jianan wrote:
> direct IO is useful in certain scenarios for uncompressed files.
> For example, it can avoid double pagecache when use the uncompressed
> file to mount upper layer filesystem.
>
> In addition, another patch adds direct IO
direct IO is useful in certain scenarios for uncompressed files.
For example, it can avoid double pagecache when use the uncompressed
file to mount upper layer filesystem.
In addition, another patch adds direct IO test for the stress tool
which was mentioned here:
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