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2019-07-08ubifs: Add support for zstd compression.Michele Dionisio1-1/+26
zstd shows a good compression rate and is faster than lzo, also on slow ARM cores. Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Signed-off-by: Michele Dionisio <michele.dionisio@gmail.com> [rw: rewrote commit message] Signed-off-by: Richard Weinberger <richard@nod.at>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 336Thomas Gleixner1-13/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details you should have received a copy of the gnu general public license along with this program if not write to the free software foundation inc 51 franklin st fifth floor boston ma 02110 1301 usa extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 246 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190530000436.674189849@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-03-25UBIFS: extend debug/message capabilitiesSheng Yong1-11/+11
In the case where we have more than one volumes on different UBI devices, it may be not that easy to tell which volume prints the messages. Add ubi number and volume id in ubifs_msg/warn/error to help debug. These two values are passed by struct ubifs_info. For those where ubifs_info is not initialized yet, ubifs_* is replaced by pr_*. For those where ubifs_info is not avaliable, ubifs_info is passed to the calling function as a const parameter. The output looks like, [ 95.444879] UBIFS (ubi0:1): background thread "ubifs_bgt0_1" started, PID 696 [ 95.484688] UBIFS (ubi0:1): UBIFS: mounted UBI device 0, volume 1, name "test1" [ 95.484694] UBIFS (ubi0:1): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.484699] UBIFS (ubi0:1): FS size: 30220288 bytes (28 MiB, 238 LEBs), journal size 1523712 bytes (1 MiB, 12 LEBs) [ 95.484703] UBIFS (ubi0:1): reserved for root: 1427378 bytes (1393 KiB) [ 95.484709] UBIFS (ubi0:1): media format: w4/r0 (latest is w4/r0), UUID 40DFFC0E-70BE-4193-8905-F7D6DFE60B17, small LPT model [ 95.489875] UBIFS (ubi1:0): background thread "ubifs_bgt1_0" started, PID 699 [ 95.529713] UBIFS (ubi1:0): UBIFS: mounted UBI device 1, volume 0, name "test2" [ 95.529718] UBIFS (ubi1:0): LEB size: 126976 bytes (124 KiB), min./max. I/O unit sizes: 2048 bytes/2048 bytes [ 95.529724] UBIFS (ubi1:0): FS size: 19808256 bytes (18 MiB, 156 LEBs), journal size 1015809 bytes (0 MiB, 8 LEBs) [ 95.529727] UBIFS (ubi1:0): reserved for root: 935592 bytes (913 KiB) [ 95.529733] UBIFS (ubi1:0): media format: w4/r0 (latest is w4/r0), UUID EEB7779D-F419-4CA9-811B-831CAC7233D4, small LPT model [ 954.264767] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node type (255 but expected 6) [ 954.367030] UBIFS error (ubi1:0 pid 756): ubifs_read_node: bad node at LEB 0:0, LEB mapping status 1 Signed-off-by: Sheng Yong <shengyong1@huawei.com> Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2012-08-31UBIFS: comply with coding styleArtem Bityutskiy1-4/+3
Join all the split printk lines in order to stop checkpatch complaining. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
2008-12-31UBIFS: fix sparse warningsArtem Bityutskiy1-2/+2
fs/ubifs/compress.c:111:8: warning: incorrect type in argument 5 (different signedness) fs/ubifs/compress.c:111:8: expected unsigned int *dlen fs/ubifs/compress.c:111:8: got int *out_len fs/ubifs/compress.c:175:10: warning: incorrect type in argument 5 (different signedness) fs/ubifs/compress.c:175:10: expected unsigned int *dlen fs/ubifs/compress.c:175:10: got int *out_len Fix this by adding a cast to (unsigned int *). We guarantee that our lengths are small and no overflow is possible. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-04UBIFS: fix section mismatchAlexey Dobriyan1-1/+1
This patch fixes the following section mismatch: WARNING: fs/ubifs/ubifs.o(.init.text+0xec): Section mismatch in reference from the function init_module() to the function .exit.text:ubifs_compressors_exit() Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-03UBIFS: introduce compression mount optionsArtem Bityutskiy1-3/+3
It is very handy to be able to change default UBIFS compressor via mount options. Introduce -o compr=<name> mount option support. Currently only "none", "lzo" and "zlib" compressors are supported. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-12-03UBIFS: slight compression optimizationArtem Bityutskiy1-3/+3
If data does not compress, it is better to leave it uncompressed because we'll read it faster then. So do not compress data if we save less than 64 bytes. Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-10-19UBIFS: fix ubifs_compress commentaryGeert Uytterhoeven1-2/+0
Update the comment for ubifs_compress(), which incorrectly states that it returnsa success/failure indicator. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
2008-07-15UBIFS: add new flash file systemArtem Bityutskiy1-0/+253
This is a new flash file system. See http://www.linux-mtd.infradead.org/doc/ubifs.html Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>