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(parent: b66e312) | patch
nfs_write_end(): fix handling of short copies
authorAl Viro <viro@zeniv.linux.org.uk>
Tue, 6 Sep 2016 01:42:32 +0000 (21:42 -0400)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 9 Jan 2017 07:07:52 +0000 (08:07 +0100)
commit8a2bcaae1bc7a33d51d668d0661e0636a4aa7bc8
tree2775ae4d43fa7d726bafe329e36a305033a0f354tree | snapshot
parentb66e3126569e25e11bc3913e41f6f39445508338commit | diff
nfs_write_end(): fix handling of short copies

commit c0cf3ef5e0f47e385920450b245d22bead93e7ad upstream.

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.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
fs/nfs/file.c diff | blob | history
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