[PATCH 02/11] mm: call import_iovec() instead of rw_copy_check_uvector() in process_vm_rw()
Matthew Wilcox
willy at infradead.org
Mon Sep 21 14:48:09 UTC 2020
On Mon, Sep 21, 2020 at 04:34:25PM +0200, Christoph Hellwig wrote:
> {
> - WARN_ON(direction & ~(READ | WRITE));
> + WARN_ON(direction & ~(READ | WRITE | CHECK_IOVEC_ONLY));
This is now a no-op because:
include/linux/fs.h:#define CHECK_IOVEC_ONLY -1
I'd suggest we renumber it to 2?
(READ is 0, WRITE is 1. This WARN_ON should probably be
WARN_ON(direction > CHECK_IOVEC_ONLY)
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