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(parent: 77f3c11) | 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)
committerSasha Levin <alexander.levin@verizon.com>
Fri, 13 Jan 2017 01:56:56 +0000 (20:56 -0500)
commit576cfe615febe0eccc95f7884ef998d15024b025
treea02f8d5a56aa19dc0d71fddb72183a602792d2a6tree | snapshot
parent77f3c11c13ddf7aa5b63b1f8b2e238d93cc6ecafcommit | diff
nfs_write_end(): fix handling of short copies

[ Upstream commit c0cf3ef5e0f47e385920450b245d22bead93e7ad ]

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>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
fs/nfs/file.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git