u-boot.git/fs/jffs2, branch v2009.08

jffs2: some fixes to summary support

2009-08-21T21:29:35+00:00

This patch fixes some issues with JFFS2 summary support in U-Boot.
1/ Summary support made compilation configurable (as summary support
considered expiremental even in Linux).
2/ Summary code can do unaligned 16-bit and 32-bit memory accesses.
We need to get data byte by byte to exclude data aborts.
3/ Make summary scan in two passes so we can safely fall back to full
scan if we found unsupported entry in the summary.

Signed-off-by: Ilya Yanok

jffs2: clean the cache in case of malloc fails in build_lists

2009-08-18T19:30:58+00:00

We should call jffs2_clean_cache() if we return from jffs2_build_lists()
with an error to prevent usage of incomplete lists. Also we should
free() a local buffer to prevent memory leaks.

Signed-off-by: Ilya Yanok

Remove legacy NAND and disk on chip code.

2009-07-17T00:07:47+00:00

Legacy NAND had been scheduled for removal.  Any boards that use this
were already not building in the previous release due to an #error.

The disk on chip code in common/cmd_doc.c relies on legacy NAND,
and it has also been removed.  There is newer disk on chip code
in drivers/mtd/nand; someone with access to hardware and sufficient
time and motivation can try to get that working, but for now disk
on chip is not supported.

Signed-off-by: Scott Wood

jffs2: include instead of defining own min_t

2008-12-16T16:14:54+00:00

Include  header for min_t definition instead of
providing our own one. Removes warnings in case of OneNAND support
enabled.

Although I thinks it's a bit silly to include 
just for min_t...

Signed-off-by: Ilya Yanok 
Acked-by: Stefan Roese

jffs2: cache data_crc results

2008-12-09T22:40:01+00:00

As we moved data_crc() invocation from jffs2_1pass_build_lists() to
jffs2_1pass_read_inode() data_crc is going to be calculated on each
inode access. This patch adds caching of data_crc() results. There
is no significant improvement in speed (because of flash access
caching added in previous patch I think, crc in RAM is really fast)
but this patch impacts memory usage -- every b_node structure uses
12 bytes instead of 8.

Signed-off-by: Alexey Neyman 
Signed-off-by: Ilya Yanok

jffs2: summary support

2008-12-09T22:39:59+00:00

This patch adds support for reading fs information from summary
node instead of scanning full eraseblock.

Signed-off-by: Ilya Yanok

jffs2: add buffer to cache flash accesses

2008-12-09T22:39:58+00:00

With this patch JFFS2 code allocates memory buffer of max_totlen size
(size of the largest node, calculated during scan time) and uses it to
store entire node. Speeds up loading. If malloc fails we use old ways
to do things.

Signed-off-by: Alexey Neyman 
Signed-off-by: Ilya Yanok

jffs2: rewrite jffs2 scanning code based on Linux one

2008-12-09T22:39:16+00:00

Rewrites jffs2_1pass_build_lists() function in style of Linux's
jffs2_scan_medium() and jffs2_scan_eraseblock().
This includes:
 - Caching flash acceses
 - Smart dealing with free space

Signed-off-by: Alexey Neyman 
Signed-off-by: Ilya Yanok

jffs2: fix searching for latest version in jffs2_1pass_list_inodes()

2008-12-09T22:38:21+00:00

We need to update i_version inside cycle to find really latest version
inside jffs2_1pass_list_inodes(). With that fixed we can use isize inside
dump_inode() instead of calling expensive jffs2_1pass_read_inode().

Signed-off-by: Alexey Neyman 
Signed-off-by: Ilya Yanok

JFFS2: Eliminate compiler error when both NAND and OneNAND are enabled.

2008-10-31T18:51:12+00:00

Reported-by: Alessandro Rubini 
Signed-off-by: Scott Wood