Commit graph

70 commits

Author SHA1 Message Date
Mark Tomlinson
10d3ac346f JFFS2: Use merge sort when parsing filesystem
When building the file system the existing code does an insertion into
a linked list. It attempts to speed this up by keeping a pointer to
where the last entry was inserted but it's still slow.

Now the nodes are just inserted into the list without searching
through for the correct place. This unsorted list is then sorted once
using mergesort after all the entries have been added to the list.
This speeds up the scanning of the flash file system considerably.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:32 -04:00
Mark Tomlinson
54a883840b JFFS2: Use CLEANMARKER to reduce scanning time
If a sector has a CLEANMARKER at the beginning, it indicates that the
entire sector has been erased. Therefore, if this is found, we can skip the
entire block. This was not being done before this patch.

The code now does the same as the kernel does when encountering a
CLEANMARKER. It still checks that the next few words are FFFFFFFF, and if
so, the block is assumed to be empty, and so is skipped.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:32 -04:00
Mark Tomlinson
081adef7e6 JFFS2: Change scansize to match linux kernel
The scan code is similar to the linux kernel, but the kernel defines a much
smaller size to scan through before deciding a sector is blank. Assuming
that what is in the kernel is OK, make these two match.

On its own, this change makes no difference to scanning of any sectors
which have a clean marker at the beginning, since the entire sector is not
blank.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:31 -04:00
Mark Tomlinson
c5b1940f57 JFFS2: Optimize building lists during scan
If the flash is slow, reading less from the flash into buffers makes
the process faster.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:31 -04:00
Mark Tomlinson
2d6d93a2dd JFFS2: Improve speed reading flash files
jffs2_1pass_read_inode() would read the entire data for each node
in the filesystem, regardless of whether it was part of the file
to be loaded or not. By only reading the header data for an inode,
and then reading the data only when it is found to be part of the
file to be loaded, much copying of data is saved.

jffs2_1pass_list_inodes() read each inode for every file in the
directory into a buffer. By using NULL as a buffer pointer, NOR
flash simply returns a pointer, and therefore avoids a memory copy.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:30 -04:00
Mark Tomlinson
891224a5d8 JFFS2: Only list each directory entry once
If multiple versions of a file exist, only the most recent version
should be used. The scheme to write 0 for the inode in older versions
did not work, since this would have required writing to flash.

The only time this caused an issue was listing a directory, where older
versions of the file would still be seen. Since the directory entries
are sorted, just look at the next entry in the list, and if it's the same
move to that entry instead.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:30 -04:00
Mark Tomlinson
225cf4cdf9 JFFS2: Speed up and fix comparison functions
Copying complete nodes from flash can be slow if the flash is slow
to read. By only reading the data needed, the sorting operation can
be made much faster.

The directory entry comparison function also had a two bugs. First, it
did not ensure the name was copied, so the name comparison may have
been faulty (although it would have worked with NOR flash).  Second,
setting the ino to zero to ignore the entry did not work, since this
was either writing to a temporary buffer, or (for NOR flash) directly
to flash. Either way, the change was not remembered.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:29 -04:00
Mark Tomlinson
3799b3f4ad JFFS2: Return early when file read not necessary
If a destination is not provided, jffs2_1pass_read_inode() only
returns the length of the file. In this case, avoid reading all
the data nodes, and return as soon as the length of the file is
known.

Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz>
2015-08-12 20:47:29 -04:00
Jeroen Hofstee
46f46fd48e jffs2:jffs2_1pass.c: remove double braces
Clang interpretes an if condition like  "if ((a = b) == NULL)
as it tries to assign a value in a statement. Hence if you do
"if ((something)) it warns you that you might be confused.
Hence drop the double braces for plane if statements.

Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl>
2014-06-11 16:27:06 -04:00
Tom Rini
18e8672449 JFFS2: Correct jffs2_1pass_build_lists to use lldiv
Since part_info size became 64bit we need to use lldiv here.

Signed-off-by: Tom Rini <trini@ti.com>
2013-12-13 09:16:20 -05:00
Mike Frysinger
7b15e2bb9b linux/compat.h: rename from linux/mtd/compat.h
This lets us use it in more places than just mtd code.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2012-04-30 16:54:51 +02:00
Wolfgang Denk
16b9afd2b3 fs/jffs2/jffs2_1pass.c: fix warning: variable ... set but not used
Fix:
jffs2_1pass.c: In function 'jffs2_1pass_read_inode':
jffs2_1pass.c:699:7: warning: variable 'ret' set but not used [-Wunused-but-set-variable]
jffs2_1pass.c: In function 'jffs2_1pass_build_lists':
jffs2_1pass.c:1578:14: warning: variable 'empty_start' set but not used [-Wunused-but-set-variable]

Signed-off-by: Wolfgang Denk <wd@denx.de>
2011-10-09 23:24:49 +02:00
Loïc Minier
6052cbab40 Fix misc spelling errors found by lintian
Signed-off-by: Loc Minier <loic.minier@linaro.org>
2011-04-12 22:58:31 +02:00
Heiko Schocher
2d2018f3db jffs2, suen3: Fix compiler warning
$ ./MAKEALL suen3
jffs2_1pass.c: In function 'get_fl_mem':
jffs2_1pass.c:399: warning: unused variable 'id'
jffs2_1pass.c: In function 'get_node_mem':
jffs2_1pass.c:423: warning: unused variable 'id'

Signed-off-by: Heiko Schocher <hs@denx.de>
Tested-by: Tom <Tom.Rix@windriver.com>
2010-03-31 15:13:31 +02:00
Wolfgang Denk
f098337152 JFFS2: drop support for LZARI compression mode
Support for LZARI compression mode was added based on a MTD CVS
snapshot of March 13, 2005. However, fs/jffs2/compr_lzari.c contains
contradictory licensing terms: the original copyright clause says "All
rights reserved. Permission granted for non-commercial use.", but
later reference to the file 'LICENCE' in the jffs2 directory was added
which says GPL v2 or later.

As no boards ever used LZARI compression, and this file is also not
present in recent MTD code, we resolve this conflict by removing the
conflicting file and references to it.

Also copy the referenced but missing file 'LICENCE' from the current
MTD source tree.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2010-01-15 11:16:47 +01:00
Ilya Yanok
8cf19b9fec jffs2: some fixes to summary support
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 <yanok@emcraft.com>
2009-08-21 23:29:35 +02:00
Ilya Yanok
b644006e1a jffs2: clean the cache in case of malloc fails in build_lists
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 <yanok@emcraft.com>
2009-08-18 21:30:58 +02:00
Scott Wood
be33b046b5 Remove legacy NAND and disk on chip code.
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 <scottwood@freescale.com>
2009-07-16 19:07:47 -05:00
Ilya Yanok
584eedab66 jffs2: include <linux/mtd/compat.h> instead of defining own min_t
Include <linux/mtd/compat.h> 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 <linux/mtd/compat.h>
just for min_t...

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Acked-by: Stefan Roese <sr@denx.de>
2008-12-16 17:14:54 +01:00
Ilya Yanok
142a80ffc3 jffs2: cache data_crc results
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 <avn@emcraft.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
2008-12-09 23:40:01 +01:00
Ilya Yanok
9b7076229e jffs2: summary support
This patch adds support for reading fs information from summary
node instead of scanning full eraseblock.

Signed-off-by: Ilya Yanok <yanok@emcraft.com>
2008-12-09 23:39:59 +01:00
Ilya Yanok
70741004dc jffs2: add buffer to cache flash accesses
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 <avn@emcraft.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
2008-12-09 23:39:58 +01:00
Ilya Yanok
8a36d31f72 jffs2: rewrite jffs2 scanning code based on Linux one
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 <avn@emcraft.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
2008-12-09 23:39:16 +01:00
Ilya Yanok
f738469567 jffs2: fix searching for latest version in jffs2_1pass_list_inodes()
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 <avn@emcraft.com>
Signed-off-by: Ilya Yanok <yanok@emcraft.com>
2008-12-09 23:38:21 +01:00
Scott Wood
2f77c7f45b JFFS2: Eliminate compiler error when both NAND and OneNAND are enabled.
Reported-by: Alessandro Rubini <rubini-list@gnudd.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-10-31 13:51:12 -05:00
Jean-Christophe PLAGNIOL-VILLARD
6d0f6bcf33 rename CFG_ macros to CONFIG_SYS
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-10-18 21:54:03 +02:00
Kyungmin Park
1a7f8ccec9 Add JFFS2 command support on OneNAND
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
2008-09-06 22:50:08 +02:00
Jean-Christophe PLAGNIOL-VILLARD
08ab4e1780 fs: Move conditional compilation to Makefile
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-08-31 04:24:56 +02:00
Jean-Christophe PLAGNIOL-VILLARD
cc4a0ceeac drivers/mtd/nand: Move conditional compilation to Makefile
rename CFG_NAND_LEGACY to CONFIG_NAND_LEGACY

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-08-13 01:40:43 +02:00
Wolfgang Denk
b64f190b7a Fix printf() format issues with sizeof_t types by using %zu
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-14 15:06:35 +02:00
Wolfgang Denk
d5996dd555 Fix some more printf() format problems.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-07-13 19:51:00 +02:00
Jean-Christophe PLAGNIOL-VILLARD
0a5676befb Fix some more printf() format issues.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2008-07-13 16:55:00 +02:00
Stuart Wood
86d3273e2b jffs2_1pass.c: add watchdog support
Signed-off-by: Stuart Wood <stuart.wood@labxtechnologies.com>
2008-06-29 19:51:12 +02:00
Stelian Pop
5922db6c09 Cleanup nand_info[] declaration.
The nand_info array is declared as extern in several .c files.
Those days, nand.h contains a reference to the array, so there is
no need to declare it elsewhere.

Signed-off-by: Stelian Pop <stelian@popies.net>
Signed-off-by: Scott Wood <scottwood@freescale.com>
2008-05-28 11:06:25 -05:00
Wolfgang Denk
53677ef18e Big white-space cleanup.
This commit gets rid of a huge amount of silly white-space issues.
Especially, all sequences of SPACEs followed by TAB characters get
removed (unless they appear in print statements).

Also remove all embedded "vim:" and "vi:" statements which hide
indentation problems.

Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-05-21 00:14:08 +02:00
Wolfgang Denk
707fa917cc jffs2_1pass.c: fix incompatible pointer type warning
Signed-off-by: Wolfgang Denk <wd@denx.de>
2008-04-28 22:01:04 +02:00
Marcel Ziswiler
7817cb2083 fix comments with new drivers organization
Signed-off-by: Marcel Ziswiler <marcel@ziswiler.com>
2008-01-09 21:48:49 +01:00
Jon Loeliger
f40a7f3e38 fs/: Remove lingering references to CFG_CMD_* symbols.
Fixed some broken instances of "#ifdef CMD_CFG_IDE" too.
Those always evaluated TRUE, and thus were always compiled
even when IDE really wasn't defined/wanted.

Signed-off-by: Jon Loeliger <jdl@freescale.com>
2007-07-10 11:07:56 -05:00
Jon Loeliger
dd60d1223b fs/: Remove obsolete references to CONFIG_COMMANDS
Signed-off-by: Jon Loeliger <jdl@freescale.com>
2007-07-09 17:56:50 -05:00
Wolfgang Denk
e4dbe1b215 Fixing some typos etc. introduced mainly by cfg patches.
Signed-off-by: Wolfgang Denk <wd@denx.de>
2007-07-05 17:56:27 +02:00
Jon Loeliger
4e109ae982 fs/: Augment CONFIG_COMMANDS tests with defined(CONFIG_CMD_*).
This is a compatibility step that allows both the older form
and the new form to co-exist for a while until the older can
be removed entirely.

All transformations are of the form:
Before:
    #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT)
After:
    #if (CONFIG_COMMANDS & CFG_CMD_AUTOSCRIPT) || defined(CONFIG_CMD_AUTOSCRIPT)

Signed-off-by: Jon Loeliger <jdl@freescale.com>
2007-07-04 00:23:12 +02:00
Marian Balakowicz
6db3970811 Fix JFFS2 support for legacy NAND driver.
Some more NAND cleanup and small fixes.
2006-04-08 19:08:06 +02:00
Wolfgang Denk
74f92e6a3f Add crc of data to jffs2 (in jffs2_1pass_build_lists()).
Patch by Rick Bronson, 15 Jun 2005
2006-03-12 16:05:05 +01:00
Bartlomiej Sieka
addb2e1650 Re-factoring the legacy NAND code (legacy NAND now only in board-specific
code and in SoC code). Boards using the old way have CFG_NAND_LEGACY and
BOARDLIBS = drivers/nand_legacy/libnand_legacy.a added. Build breakage for
NETTA.ERR and NETTA_ISDN - will go away when the new NAND support is
implemented for these boards.
2006-03-05 18:57:33 +01:00
Bartlomiej Sieka
038ccac511 Merge with /home/wd/git/u-boot/testing-NAND/ to add new NAND handling. 2006-02-24 09:37:22 +01:00
Wolfgang Denk
84bd92bdda Merge with /home/m8/git/u-boot 2005-10-15 18:23:43 +02:00
Wolfgang Denk
77ddac9480 Cleanup for GCC-4.x 2005-10-13 16:45:02 +02:00
Marian Balakowicz
e6f2e90233 Added support for TQM834x boards. 2005-10-11 19:09:42 +02:00
Wolfgang Denk
ac7eb8a315 Update of new NAND code
Patch by Ladislav Michl, 13 Sep 2005
2005-09-14 23:53:32 +02:00
Wolfgang Denk
87b8bd5aed Fix return values of the jffs2 commands ls/fsload/fsinfo,
so we can use them to, e.g., check the existence of a file with
"if ls foo; then this; else that; fi" in the hush shell
Patch by Andreas Engel, 16 August 2005
2005-08-16 09:32:45 +02:00