Messages in this thread | | | Date | Mon, 3 Feb 2014 00:15:06 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH] block devices: validate block device capacity |
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On Fri, Jan 31, 2014 at 03:20:17AM -0500, Mikulas Patocka wrote: > So if you think you can support 16TiB devices and leave pgoff_t 32-bit, > send a patch that does it. > > Until you make it, you should apply the patch that I sent, that prevents > kernel lockups or data corruption when the user uses 16TiB device on > 32-bit kernel.
Exactly. I had actually looked into support for > 16TiB devices for a NAS use case a while ago, but when explaining the effort involves the idea was dropped quickly. The Linux block device is too deeply tied to the pagecache to make it easily feasible.
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