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authorAl Viro2016-11-01 22:09:04 -0400
committerAl Viro2016-12-05 14:33:36 -0500
commitcbbd26b8b1a6af9c02e2b6523e12bd50cc765059 (patch)
tree6d1b258c99e83f320cf3611bdc927121df7e9b03 /mm/vmstat.c
parente5517c2a5a49ed5e99047008629f1cd60246ea0e (diff)
[iov_iter] new primitives - copy_from_iter_full() and friends
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: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/vmstat.c')
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