iov_iter: get rid of separate bvec and xarray callbacks

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After the previous commit we have
	* xarray and bvec callbacks idential in all cases
	* both equivalent to kvec callback wrapped into
kmap_local_page()/kunmap_local() pair.

So we can pass only two (iovec and kvec) callbacks to
iterate_and_advance() and let iterate_{bvec,xarray} wrap
it into kmap_local_page()/kunmap_local_page().

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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This commit is contained in:

Al Viro 2021-04-26 20:50:05 -04:00

parent 1b4fb5ffd7

commit 21b56c8477

1 changed files with 30 additions and 82 deletions

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lib/iov_iter.c

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