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linux/lib/iov_iter.c
Al Viro ff76ab9e03 new privimitive: iov_iter_revert() 
commit 27c0e3748e upstream.

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

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-04-21 09:31:21 +02:00

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