On Mon, Apr 16, 2018 at 10:19:18PM -0700, Darrick J. Wong wrote:
> From: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
>
> Since deduplication potentially has to read in all the pages in both
> files in order to compare the contents, cap the deduplication request
> length at MAX_RW_COUNT (roughly 2GB) so that we have /some/ upper bound
> on the request length and can't just lock up the kernel forever. Found
> by running generic/304 after commit 1ddae54555b62 ("common/rc: add
> missing 'local' keywords").
Looks fine. btrfs limits to 16MB, I guess we don't want to go that low?
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