From: Paolo Galtieri Date: Tue, 11 Oct 2005 15:29:07 +0000 (-0700) Subject: [PATCH] ppc highmem fix X-Git-Tag: v2.6.14-rc5~81 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a0c111c631e7ab4abd68920debd44259160812ef;p=pandora-kernel.git [PATCH] ppc highmem fix I've noticed that the calculations for seg_size and nr_segs in __dma_sync_page_highmem() (arch/ppc/kernel/dma-mapping.c) are wrong. The incorrect calculations can result in either an oops or a panic when running fsck depending on the size of the partition. The problem with the seg_size calculation is that it can result in a negative number if size is offset > size. The problem with the nr_segs caculation is returns the wrong number of segments, e.g. it returns 1 when size is 200 and offset is 4095, when it should return 2 or more. Acked-by: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Reading git-diff-tree failed