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iov_iter: Use accessor function

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Use accessor functions to access an iterator's type and direction.  This
allows for the possibility of using some other method of determining the
type of iterator than if-chains with bitwise-AND conditions.

Signed-off-by: David Howells <dhowells@redhat.com>
This commit is contained in:
David Howells
2018-10-22 13:07:28 +01:00
parent 1fcb748d18
commit 00e2370744
14 changed files with 87 additions and 60 deletions
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2
block/bio.c
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@@ -1255,7 +1255,7 @@ struct bio *bio_copy_user_iov(struct request_queue *q,
/*
* success
*/
if (((iter->type & WRITE) && (!map_data || !map_data->null_mapped)) ||
if ((iov_iter_rw(iter) == WRITE && (!map_data || !map_data->null_mapped)) ||
(map_data && map_data->from_user)) {
ret = bio_copy_from_iter(bio, iter);
if (ret)