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Date: Tue, 21 Apr 2009 01:02:52 +0100 From: Phillip Lougher <phillip@...gher.demon.co.uk> To: Geert Uytterhoeven <Geert.Uytterhoeven@...ycom.com> CC: squashfs-devel@...ts.sourceforge.net, linux-kernel <linux-kernel@...r.kernel.org>, Doug Chapman <doug.chapman@...com> Subject: Re: [Squashfs-devel] [PATCH] squashfs broken when pageszie > blocksize Geert Uytterhoeven wrote: > A quick grep on PAGE_{SIZE,SHIFT} in asm/page.h shows: > > ia64, mips, sh: 4/8/16/64 KiB > parisc: 4/16/64 KiB > alpha, cris: 8 KiB > powerpc: 4/16/64/256 KiB > >> For completeness there should also be a mount time check that >> the block size used in the Squashfs filesystem is at least as >> large as the pagesize. This doesn't matter for metadata >> (size 8192), but does matter for data blocks, because Squashfs >> read_page doesn't handle block_size < pagesize. >> >> Squashfs read_page used to handle block_size < pagesize but I >> removed that code when I removed filesystem support for block_sizes >> < 4K. If ia64 users (or any other architecture with larger than >> 4K pagesizes) want to use Squashfs filesystems with blocksizes less >> than their pagesize, then I can put that code back in. > > So I think it's a good idea to resurrect that code... > Yes, something else to add to my ASAP TODO list. Phillip -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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