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(parent: fc6cb9c) | 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 07:32:24 +0000 (08:32 +0100)
commitb775b86a5fe8f45500ce027a60ca0f1e1f49a13e
treee46af49fff2b5afdf97f852a1488851182ec8622tree
parentfc6cb9c303e289e0772cd9db593db9acd15cd678commit | 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 | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git