From: Andrew Victor Date: Wed, 9 Feb 2005 09:09:05 +0000 (+0000) Subject: [JFFS2] Core changes required to support JFFS2-on-Dataflash devices. X-Git-Tag: v2.6.13-rc3~93^2~109 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=3be36675d41a30ed3b192f92684f1417aa0f8bfe;p=pandora-kernel.git [JFFS2] Core changes required to support JFFS2-on-Dataflash devices. DataFlash page-sizes are not a power of two (they're multiples of 528 bytes). There are a few places in JFFS2 code where sector_size is used as a bitmask. A new macro (SECTOR_ADDR) was defined to calculate these sector addresses. For non-DataFlash devices, the original (faster) bitmask operation is still used. In scan.c, the EMPTY_SCAN_SIZE was a constant of 1024. Since this could be larger than the sector size of the DataFlash, this is now basically set to MIN(sector_size, 1024). Addition of a jffs2_is_writebuffered() macro. Signed-off-by: Andrew Victor Signed-off-by: Thomas Gleixner --- Reading git-diff-tree failed