linux-toradex.git/fs/jffs2/os-linux.h, branch v2.6.16.21 Linux kernel for Apalis and Colibri modules [JFFS2] Clean up trailing white spaces 2005-11-07T13:18:56+00:00 Thomas Gleixner tglx@linutronix.de 2005-11-07T11:16:07+00:00 182ec4eee397543101a6db8906ed88727d3f7e53 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Fix dataflash support 2005-11-06T22:01:48+00:00 Artem B. Bityutskiy dedekind@infradead.org 2005-09-30T13:59:17+00:00 daba5cc4bcd025a9b4fd02a9117c71bfd400d811 - assume wbuf may be of size which is not power of 2 - don't make strange assumption about not padding wbuf for DataFlash - use wbuf = DataFlash page and eraseblock >= 8 Dataflash pages From: Peter Menzebach <pm-mtd@mw-itcon.de> Acked-by: Artem B. Bityutskiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
- assume wbuf may be of size which is not power of 2
- don't make strange assumption about not padding wbuf for DataFlash
- use wbuf = DataFlash page and eraseblock >= 8 Dataflash pages

From: Peter Menzebach <pm-mtd@mw-itcon.de>
Acked-by: Artem B. Bityutskiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Debug code simplification, update TODO 2005-11-06T21:20:33+00:00 Artem B. Bityutskiy dedekind@infradead.org 2005-09-22T11:25:00+00:00 733802d974e5af42acb7cd61b16c0ce6dd03b7ed Simplify the debugging code further. Update the TODO list Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Simplify the debugging code further.
Update the TODO list

Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Add erase block summary support (mount time improvement) 2005-11-06T20:29:48+00:00 Ferenc Havasi havasi@inf.u-szeged.hu 2005-09-07T08:35:26+00:00 e631ddba588783edd521c5a89f7b2902772fb691 The goal of summary is to speed up the mount time. Erase block summary (EBS) stores summary information at the end of every (closed) erase block. It is no longer necessary to scan all nodes separetly (and read all pages of them) just read this "small" summary, where every information is stored which is needed at mount time. This summary information is stored in a JFFS2_FEATURE_RWCOMPAT_DELETE. During the mount process if there is no summary info the orignal scan process will be executed. EBS works with NAND and NOR flashes, too. There is a user space tool called sumtool to generate this summary information for a JFFS2 image. Signed-off-by: Ferenc Havasi <havasi@inf.u-szeged.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
The goal of summary is to speed up the mount time. Erase block summary (EBS)
stores summary information at the end of every (closed) erase block. It is
no longer necessary to scan all nodes separetly (and read all pages of them)
just read this "small" summary, where every information is stored which is
needed at mount time.

This summary information is stored in a JFFS2_FEATURE_RWCOMPAT_DELETE. During
the mount process if there is no summary info the orignal scan process will
be executed. EBS works with NAND and NOR flashes, too.

There is a user space tool called sumtool to generate this summary
information for a JFFS2 image.

Signed-off-by: Ferenc Havasi <havasi@inf.u-szeged.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Teach JFFS2 about Sibley flash 2005-11-06T19:13:52+00:00 Nicolas Pitre nico@cam.org 2005-08-06T04:51:33+00:00 59da721a2288b8aec751a2716f7ab60f2ea0c925 Intels Sibley flash needs JFFS2 write buffer functionality Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Intels Sibley flash needs JFFS2 write buffer functionality

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Use f->target instead of f->dents for symlink target 2005-11-06T15:25:55+00:00 Artem B. Bityutskiy dedekind@infradead.org 2005-07-17T11:13:51+00:00 2b79adcca147c9f8fd1094ab4cb342d7e1790d70 JFFS2 uses f->dents to store the pointer to the symlink target string (in case the inode is symlink). This is somewhat ugly to use the same field for different reasons. Introduce distinct field f->target for this purpose. Note, f->fragtree, f->dents, f->target may probably be put in a union. Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
JFFS2 uses f->dents to store the pointer to the symlink target string (in case
the inode is symlink). This is somewhat ugly to use the same field for
different reasons. Introduce distinct field f->target for this purpose.
Note, f->fragtree, f->dents, f->target may probably be put in a union.

Signed-off-by: Artem B. Bityutskiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Avoid compiler warnings when JFFS2_FS_WRITEBUFFER=n 2005-07-12T22:03:19+00:00 Todd Poynor tpoynor@mvista.com 2005-07-12T02:34:39+00:00 751382dd5cb2702368d281a50b55c2d6c4e8fbfc Signed-off-by: Todd Poynor <tpoynor@mvista.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Signed-off-by: Todd Poynor <tpoynor@mvista.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Remove compatibilty cruft for ancient kernels 2005-07-06T14:12:09+00:00 David Woodhouse dwmw2@infradead.org 2005-07-06T12:13:13+00:00 265489f01d8c05f7aae174651a98854af090efc0 Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Fix NOR only compile 2005-05-23T11:19:07+00:00 Artem B. Bityuckiy dedekind@infradead.org 2005-05-03T15:19:02+00:00 8cd79216676d9122fa714615e6b49553761aca8a Fix the bug that caouses problems when compiling for NOR. We read a newly erased block so we don't need to check ECC. Define jffs2_is_writebuffered as zero if there is no wbuf. Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
Fix the bug that caouses problems when compiling for NOR.
We read  a newly erased block so we don't need to check ECC.

Define jffs2_is_writebuffered as zero if there is no wbuf.

Signed-off-by: Artem B. Bityuckiy <dedekind@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
[JFFS2] Use a single config option for write buffer support 2005-05-23T10:29:43+00:00 Andrew Victor andrew@sanpeople.com 2005-02-09T09:24:26+00:00 2f82ce1eb637c06dfc60f095cd1891ae0ba4894c This patch replaces the current CONFIG_JFFS2_FS_NAND, CONFIG_JFFS2_FS_NOR_ECC and CONFIG_JFFS2_FS_DATAFLASH with a single configuration option - CONFIG_JFFS2_FS_WRITEBUFFER. The only functional change of this patch is that the slower div/mod calculations for SECTOR_ADDR(), PAGE_DIV() and PAGE_MOD() are now always used when CONFIG_JFFS2_FS_WRITEBUFFER is enabled. Signed-off-by: Andrew Victor <andrew@sanpeople.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> 
This patch replaces the current CONFIG_JFFS2_FS_NAND, CONFIG_JFFS2_FS_NOR_ECC
and CONFIG_JFFS2_FS_DATAFLASH with a single configuration option -
CONFIG_JFFS2_FS_WRITEBUFFER.

The only functional change of this patch is that the slower div/mod
calculations for SECTOR_ADDR(), PAGE_DIV() and PAGE_MOD() are now always
used when CONFIG_JFFS2_FS_WRITEBUFFER is enabled.

Signed-off-by: Andrew Victor <andrew@sanpeople.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>