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Alexander Viro authored
Beginning of iovec cleanups - added two helpers (kernel_{send,recv}msg) that do sock_sendmsg/sock_recvmsg with kvec instead of iovec; basically, they were abstracted from earlier afs patch. They take kvec/length of kvec as separate arguments, do set_fs(), stick kvec into msghdr and call sock_...msg(). The next group of patches will switch network filesystems to use of kvec for kernel data + use of these helpers. Basically, the same thing we'd done for afs.
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