On Thu, Oct 04, 2018 at 05:44:54PM -0700, Darrick J. Wong wrote: > From: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > > When we're reflinking between two files and the destination file range > is well beyond the destination file's EOF marker, zero any posteof > speculative preallocations in the destination file so that we don't > expose stale disk contents. The previous strategy of trying to clear > the preallocations does not work if the destination file has the > PREALLOC flag set. > > Uncovered by shared/010. > > Reported-by: Zorro Lang <zlang@xxxxxxxxxx> > Bugzilla-id: https://bugzilla.kernel.org/show_bug.cgi?id=201259 > Signed-off-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx> > --- > fs/xfs/xfs_reflink.c | 33 +++++++++++++++++++++++++-------- > 1 file changed, 25 insertions(+), 8 deletions(-) Looks good. Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx> -- Dave Chinner david@xxxxxxxxxxxxx
