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| author |   Andrew Victor <andrew@sanpeople.com> | 2005-02-09 09:09:05 +0000 |
|---|---|---|
| committer |   Thomas Gleixner <tglx@mtd.linutronix.de> | 2005-05-23 12:27:09 +0200 |
| commit | 3be36675d41a30ed3b192f92684f1417aa0f8bfe (patch) | |
| tree | da8395bb14ffef19e551c509c47d16b52fb536d9 /include/mtd | |
| parent | [MTD] Unabuse file-f_mode for OTP purpose (diff) | |
| download | linux-dev-3be36675d41a30ed3b192f92684f1417aa0f8bfe.tar.xz linux-dev-3be36675d41a30ed3b192f92684f1417aa0f8bfe.zip | |
[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>
Diffstat (limited to 'include/mtd')
0 files changed, 0 insertions, 0 deletions