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authorAndrew Victor <andrew@sanpeople.com>2005-02-09 09:09:05 +0000
committerThomas Gleixner <tglx@mtd.linutronix.de>2005-05-23 12:27:09 +0200
commit3be36675d41a30ed3b192f92684f1417aa0f8bfe (patch)
treeda8395bb14ffef19e551c509c47d16b52fb536d9 /fs/jffs2/Makefile
parent045e9a5d51ced27bfcbdb78071534ce6fd36b33d (diff)
[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 <andrew@sanpeople.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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