• Al Viro's avatar
    [iov_iter] new primitives - copy_from_iter_full() and friends · cbbd26b8
    Al Viro authored
    copy_from_iter_full(), copy_from_iter_full_nocache() and
    csum_and_copy_from_iter_full() - counterparts of copy_from_iter()
    et.al., advancing iterator only in case of successful full copy
    and returning whether it had been successful or not.
    Convert some obvious users.  *NOTE* - do not blindly assume that
    something is a good candidate for those unless you are sure that
    not advancing iov_iter in failure case is the right thing in
    this case.  Anything that does short read/short write kind of
    stuff (or is in a loop, etc.) is unlikely to be a good one.
    Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
printk.c 83.9 KB