On Fri, Sep 17, 2021 at 08:33:04AM -0700, Darrick J. Wong wrote:
> > More importantly before we can merge this series we also need the VM
> > level support for reflink-aware reverse mapping. So while this series
> > here is no in a good enough shape I don't see how we could merge it
> > without
On Thu, Sep 16, 2021 at 08:32:51AM +0200, Christoph Hellwig wrote:
> On Wed, Sep 15, 2021 at 05:22:27PM -0700, Darrick J. Wong wrote:
> > > xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
> > > ret = dax_iomap_fault(vmf, pe_size, , NULL,
> > >
On 2021/9/16 14:23, Christoph Hellwig wrote:
On Wed, Sep 15, 2021 at 06:45:00PM +0800, Shiyang Ruan wrote:
+static int
+xfs_dax_write_iomap_end(
+ struct inode*inode,
+ loff_t pos,
+ loff_t length,
+ ssize_t
On Wed, Sep 15, 2021 at 05:22:27PM -0700, Darrick J. Wong wrote:
> > xfs_ilock(XFS_I(inode), XFS_MMAPLOCK_SHARED);
> > ret = dax_iomap_fault(vmf, pe_size, , NULL,
> > (write_fault && !vmf->cow_page) ?
> > -
On Wed, Sep 15, 2021 at 06:45:00PM +0800, Shiyang Ruan wrote:
> +static int
> +xfs_dax_write_iomap_end(
> + struct inode*inode,
> + loff_t pos,
> + loff_t length,
> + ssize_t written,
> + unsigned
On Wed, Sep 15, 2021 at 06:45:00PM +0800, Shiyang Ruan wrote:
> In fsdax mode, WRITE and ZERO on a shared extent need CoW performed.
> After that, new allocated extents needs to be remapped to the file.
> So, add a CoW identification in ->iomap_begin(), and implement
> ->iomap_end() to do the
In fsdax mode, WRITE and ZERO on a shared extent need CoW performed.
After that, new allocated extents needs to be remapped to the file.
So, add a CoW identification in ->iomap_begin(), and implement
->iomap_end() to do the remapping work.
Signed-off-by: Shiyang Ruan
---
fs/xfs/xfs_bmap_util.c
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