Re: [RFC 1/1 linux-next] btrfs: don't opencode zero_user_segment

[Zach Brown]

On Tue, Oct 14, 2014 at 07:46:14PM +0200, Fabian Frederick wrote:
> use function defined in include/linux/highmem.h
> Note that this reverts 2 last function call order

And adds a BUG_ON(PAGE_CACHE_SIZE > PAGE_SIZE).  We can take bets on
whether that will ever trigger.

- z
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