Al Viro 27c0e3748e [iov_iter] new privimitive: iov_iter_revert() ...

opposite to iov_iter_advance(); the caller is responsible for never
using it to move back past the initial position.

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

2017-04-02 12:10:47 -04:00

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