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H A D | dax.c | 0e79e373 Thu Dec 01 09:31:41 CST 2022 Shiyang Ruan <ruansy.fnst@fujitsu.com> fsdax: dedupe: iter two files at the same time
The iomap_iter() on a range of one file may loop more than once. In this case, the inner dst_iter can update its iomap but the outer src_iter can't. This may cause the wrong remapping in filesystem. Let them called at the same time.
Link: https://lkml.kernel.org/r/1669908701-93-1-git-send-email-ruansy.fnst@fujitsu.com Signed-off-by: Shiyang Ruan <ruansy.fnst@fujitsu.com> Reviewed-by: Darrick J. Wong <djwong@kernel.org> Cc: Alistair Popple <apopple@nvidia.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Jason Gunthorpe <jgg@nvidia.com> Cc: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
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