diff options
| author | Liu Bo <[email protected]> | 2013-09-22 12:54:23 +0800 |
|---|---|---|
| committer | Chris Mason <[email protected]> | 2013-11-11 21:52:54 -0500 |
| commit | fe09e16cc8d444ecc52f6f9a651946f16fffa4e1 (patch) | |
| tree | fd70448c73de76d483dc4397655425a41a43821b /scripts | |
| parent | 74514323947ef27347564bfd7a663fdb3429cb20 (diff) | |
Btrfs: export btrfs space shared info to userspace
Similar to ocfs2, btrfs also supports that extents can be shared by
different inodes, and there are some userspace tools requesting
for this kind of 'space shared infomation'.[1]
ocfs2 uses flag FIEMAP_EXTENT_SHARED, so does btrfs.
[1]: http://thr3ads.net/ocfs2-devel/2010/09/489052-PATCH-3-3-shared-du-using-fiemap-to-figure-up-the-shared-extents-per-file-and-the-footprint-in
Reviewed-by: David Sterba <[email protected]>
Signed-off-by: Liu Bo <[email protected]>
Signed-off-by: Josef Bacik <[email protected]>
Signed-off-by: Chris Mason <[email protected]>
Diffstat (limited to 'scripts')
0 files changed, 0 insertions, 0 deletions