Messages in this thread Patch in this message | | | From | Greg Kroah-Hartman <> | Subject | [PATCH 5.13 038/800] [xarray] iov_iter_fault_in_readable() should do nothing in xarray case | Date | Mon, 12 Jul 2021 08:01:01 +0200 |
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From: Al Viro <viro@zeniv.linux.org.uk>
commit 0e8f0d67401589a141950856902c7d0ec8d9c985 upstream.
... and actually should just check it's given an iovec-backed iterator in the first place.
Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- lib/iov_iter.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/lib/iov_iter.c +++ b/lib/iov_iter.c @@ -476,7 +476,7 @@ int iov_iter_fault_in_readable(struct io int err; struct iovec v; - if (!(i->type & (ITER_BVEC|ITER_KVEC))) { + if (iter_is_iovec(i)) { iterate_iovec(i, bytes, v, iov, skip, ({ err = fault_in_pages_readable(v.iov_base, v.iov_len); if (unlikely(err))
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