tree 81db472b3d4c969ba0e3c9423ddad79ff793cc69
parent e5517c2a5a49ed5e99047008629f1cd60246ea0e
author Al Viro <viro@zeniv.linux.org.uk> 1473126152 -0400
committer Al Viro <viro@zeniv.linux.org.uk> 1481341307 -0500

nfs_write_end(): fix handling of short copies

What matters when deciding if we should make a page uptodate is
not how much we _wanted_ to copy, but how much we actually have
copied.  As it is, on architectures that do not zero tail on
short copy we can leave uninitialized data in page marked uptodate.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>