NFS: Optimise sparse writes past the end of file

If we're doing a write, and the entire page lies beyond the end-of-file,
then we can assume the write can be extended to cover the beginning of
the page, since we know the data in that region will be all zeros.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Trond Myklebust 2021-02-08 08:55:46 -05:00 • committed by Anna Schumaker
commit fc9dc40189
2 changed files with 13 additions and 11 deletions