Re: [PATCH 3/6] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE

[PATCH v8 0/6] vfs: help support reflink for XFS · Darrick J. Wong <hidden> · 2016-08-25
[PATCH 1/6] vfs: fix return type of ioctl_file_dedupe_range · Darrick J. Wong <hidden> · 2016-08-25
[PATCH 2/6] vfs: cap dedupe request structure size at PAGE_SIZE · Darrick J. Wong <hidden> · 2016-08-25
Re: [PATCH 2/6] vfs: cap dedupe request structure size at PAGE_SIZE · Christoph Hellwig <hch@infradead.org> · 2016-09-05
Re: [PATCH 2/6] vfs: cap dedupe request structure size at PAGE_SIZE · Darrick J. Wong <hidden> · 2016-09-13
Re: [PATCH 2/6] vfs: cap dedupe request structure size at PAGE_SIZE · Christoph Hellwig <hch@infradead.org> · 2016-09-14
[PATCH 3/6] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE · Darrick J. Wong <hidden> · 2016-08-25
Re: [PATCH 3/6] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE · Christoph Hellwig <hch@infradead.org> · 2016-09-05
Re: [PATCH 3/6] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE · Darrick J. Wong <hidden> · 2016-09-06
Re: [PATCH 3/6] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE · Christoph Hellwig <hch@infradead.org> · 2016-09-11
Re: [PATCH 3/6] vfs: support FS_XFLAG_REFLINK and FS_XFLAG_COWEXTSIZE · Darrick J. Wong <hidden> · 2016-09-12
[PATCH 4/6] fs: add iomap_file_dirty · Christoph Hellwig <hch@lst.de> · 2016-08-25
Re: [PATCH 4/6] fs: add iomap_file_dirty · Christoph Hellwig <hch@infradead.org> · 2016-09-05
Re: [PATCH 4/6] fs: add iomap_file_dirty · Darrick J. Wong <hidden> · 2016-09-06
Re: [PATCH 4/6] fs: add iomap_file_dirty · Christoph Hellwig <hch@infradead.org> · 2016-09-11
Re: [PATCH 4/6] fs: add iomap_file_dirty · Dave Chinner <david@fromorbit.com> · 2016-09-19
[PATCH 6/6] iomap: add a flag to report shared extents · Darrick J. Wong <hidden> · 2016-08-25
Re: [PATCH 6/6] iomap: add a flag to report shared extents · Christoph Hellwig <hch@infradead.org> · 2016-09-05
[PATCH 5/6] iomap: don't set FIEMAP_EXTENT_MERGED for extent based filesystems · Darrick J. Wong <hidden> · 2016-08-25

From: Christoph Hellwig <hidden>
Date: 2016-09-05 14:56:25
Also in: linux-fsdevel, linux-xfs

On Thu, Aug 25, 2016 at 04:31:00PM -0700, Darrick J. Wong wrote:

Introduce XFLAGs for the new XFS reflink inode flag and the CoW extent
size hint, and actually plumb the CoW extent size hint into the fsxattr
structure.

Just curious, but why would we even bother to expose the reflink flag
to userspace?

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