Messages in this thread | | | From | Linus Torvalds <> | Date | Wed, 17 Jan 2018 19:16:02 -0800 | Subject | Re: [RFC][PATCH] get rid of the use of set_fs() (by way of kernel_recvmsg()) in sunrpc |
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On Wed, Jan 17, 2018 at 7:06 PM, Al Viro <viro@zeniv.linux.org.uk> wrote: > > Similar to the way put_cmsg() handles 32bit case on biarch > targets, introduce a flag telling put_cmsg() to treat > ->msg_control as kernel pointer, using memcpy instead of > copy_to_user(). That allows to avoid the use of kernel_recvmsg() > with its set_fs().
If this is the only case that kernel_recvmsg() exists for, then by all means, that patch certainly looks like a good thing.
Linus
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