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path: root/fs/jffs2/compr.c
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2012-03-27jffs2: Use pr_fmt and remove jffs: from formatsJoe Perches1-10/+11
Use pr_fmt to prefix KBUILD_MODNAME to appropriate logging messages. Remove now unnecessary internal prefixes from formats. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27jffs2: Convert printks to pr_<level>Joe Perches1-7/+10
Use the more current logging style. Coalesce formats, align arguments. Convert uses of embedded function names to %s, __func__. A couple of long line checkpatch errors I don't care about exist. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27jffs2: Convert most D1/D2 macros to jffs2_dbgJoe Perches1-7/+7
D1 and D2 macros are mostly uses to emit debugging messages. Convert the logging uses of D1 & D2 to jffs2_dbg(level, fmt, ...) to be a bit more consistent style with the rest of the kernel. All jffs2_dbg output is now at KERN_DEBUG where some of the previous uses were emitted at various KERN_<LEVEL>s. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2012-03-27jffs2: Fix typo in compr.cMasanari Iida1-1/+1
Correct spelling "modul" to "module" in fs/hffs2/compr.c Signed-off-by: Masanari Iida <standby24x7@gmail.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2011-10-19jffs2: add compr=lzo and compr=zlib optionsAndres Salomon1-35/+84
..to allow forcing of either compression scheme. This will override compiled-in defaults. jffs2_compress is reworked a bit, as the lzo/zlib override shares lots of code w/ the PRIORITY mode. v2: update show_options accordingly. Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
2011-10-19jffs2: implement mount option parsing and compression overridingAndres Salomon1-2/+7
Currently jffs2 has compile-time constants (and .config options) controlling whether or not the various compression/decompression drivers are built in and enabled. This is fine for embedded systems, but it clashes with distribution kernels. Distro kernels tend to turn on everything; this causes OpenFirmware to fall over, as it understands ZLIB-compressed inodes. Booting a kernel that has LZO compression enabled, writing to the boot partition, and then rebooting causes OFW to fail to read the kernel from the filesystem. This is because LZO compression has priority when writing new data to jffs2, if LZO is enabled. This patch adds mount option parsing, and a single supported option ("compr=none"). This adds the flexibility of being able to specify which compressor overrides on a per-superblock basis. For now, we can simply disable compression; additional flexibility coming soon. v2: kill some printks, and implement show_options as suggested by Artem Bityutskiy. Signed-off-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@intel.com>
2010-10-25jffs2: drop unused model argumentMike Frysinger1-3/+3
The jffs2 compression framework provides a "model" argument when compressing and decompressing, but the caller always passes in NULL and the callees never use it. So punt this useless overhead. Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2010-08-08jffs2: Update copyright noticesDavid Woodhouse1-2/+3
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2009-12-04tree-wide: fix assorted typos all over the placeAndré Goddard Rosa1-1/+1
That is "success", "unknown", "through", "performance", "[re|un]mapping" , "access", "default", "reasonable", "[con]currently", "temperature" , "channel", "[un]used", "application", "example","hierarchy", "therefore" , "[over|under]flow", "contiguous", "threshold", "enough" and others. Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2008-10-17[JFFS2] Correct parameter names of jffs2_compress() in commentsGeert Uytterhoeven1-2/+2
Make the parameter names of jffs2_compress() in its comments match with the actual implementation Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2007-07-11[JFFS2] Add a "favourlzo" compression modeRichard Purdie1-5/+40
Add a "favourlzo" compression mode to jffs2 which tries to optimise by size but gives lzo an advantage when comparing sizes. This means the faster lzo algorithm can be preferred when there isn't much difference in compressed size (the exact threshold can be changed). Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-11[JFFS2] Add LZO compression support.Richard Purdie1-0/+6
Add LZO1X compression/decompression support to jffs2. LZO's interface doesn't entirely match that required by jffs2 so a buffer and memcpy is unavoidable. Signed-off-by: Richard Purdie <rpurdie@openedhand.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-07-10[JFFS2] Whitespace cleanups.David Woodhouse1-190/+191
Convert many spaces to tabs; one or two other minor cosmetic fixes. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-25[JFFS2] Tidy up licensing/copyright boilerplate.David Woodhouse1-4/+2
In particular, remove the bit in the LICENCE file about contacting Red Hat for alternative arrangements. Their errant IS department broke that arrangement a long time ago -- the policy of collecting copyright assignments from contributors came to an end when the plug was pulled on the servers hosting the project, without notice or reason. We do still dual-license it for use with eCos, with the GPL+exception licence approved by the FSF as being GPL-compatible. It's just that nobody has the right to license it differently. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2007-04-02[JFFS2] Delete everything related to obsolete JFFS2_PROC optionRobert P. J. Day1-138/+0
Delete everything related to the apparently non-existent kernel config option JFFS2_PROC. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-06-03[JFFS2] Remove stray __exit from jffs2_compressors_exit()David Woodhouse1-1/+1
It's used from the initfunc in case of failure too. We could actually do with an '__initexit' for this kind of thing -- when built in to the kernel, it could do with being dropped with the init text. We _could_ actually just use __init for it, but that would break if/when we start dropping init text from modules. So let's just leave it as it was for now, and mutter a little more about random 'janitorial' fixes from people who aren't paying attention to what they're doing. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-16[JFFS2] Fix section mismatch warnings in JFFS2.David Brownell1-2/+2
Mark certain functions with __init and __exit appropriately. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2005-11-07[JFFS2] Clean up trailing white spacesThomas Gleixner1-14/+14
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-11-06[jffs2] Remove compressor lzo and lzariFerenc Havasi1-13/+1
Remove unused compressor code Signed-off-by: Ferenc Havasi <havasi@inf.u-szeged.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2005-04-17Linux-2.6.12-rc2Linus Torvalds1-0/+469
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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