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(parent: 1678ada) | 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 07:22:01 +0000 (08:22 +0100)
commit8f5ff877bf19076c49eda0b440ad16507ebd1fcf
treee8a833fca754887f4585261d23c93eca9a5427cetree | snapshot
parent1678adac85dadd18fca4c185381812500cfb1262commit | 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
wrapfs-4.8.y