Linux kernel stable tree https://git.rulkc.org/pub/scm/linux/kernel/git/stable/linux.git/atom?h=linux-3.13.y 2013-01-22T09:48:31+00:00 2013-01-22T09:48:31+00:00 Namjae Jeon namjae.jeon@samsung.com 2013-01-19T02:17:14+00:00 urn:sha1:99600051b04bc4ec8bd4d16a8bf993ca54042db6 This patch implements extent caching in case of file reading. While reading a file, currently, UDF reads metadata serially which takes a lot of time depending on the number of extents present in the file. Caching last accessd extent improves metadata read time. Instead of reading file metadata from start, now we read from the cached extent. This patch considerably improves the time spent by CPU in kernel mode. For example, while reading a 10.9 GB file using dd: Time before applying patch: 11677022208 bytes (10.9GB) copied, 1529.748921 seconds, 7.3MB/s real 25m 29.85s user 0m 12.41s sys 15m 34.75s Time after applying patch: 11677022208 bytes (10.9GB) copied, 1469.338231 seconds, 7.6MB/s real 24m 29.44s user 0m 15.73s sys 3m 27.61s [JK: Fix bh refcounting issues, simplify initialization] Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com> Signed-off-by: Ashish Sangwan <a.sangwan@samsung.com> Signed-off-by: Bonggil Bak <bgbak@samsung.com> Signed-off-by: Jan Kara <jack@suse.cz> 2012-07-09T10:03:11+00:00 Artem Bityutskiy artem.bityutskiy@linux.intel.com 2012-06-04T11:46:24+00:00 urn:sha1:db8109ef98b5fb7e26e0d265c02f7164b13009d4 The UDF file-system does not need the 's_dirt' superblock flag because it does not define the 'write_super()' method. This flag was set to 1 in few places and set to 0 in '->sync_fs()' and was basically useless. Stop using it because it is on its way out. Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com> Signed-off-by: Jan Kara <jack@suse.cz> 2012-01-04T03:55:08+00:00 Al Viro viro@zeniv.linux.org.uk 2011-07-26T07:18:29+00:00 urn:sha1:faa17292fd3a5a80345511ea341a59ac40ab59dc note re mount options: fmask and dmask are explicitly truncated to 12bit, UDF_INVALID_MODE just needs to be guaranteed to differ from any such value. And umask is used only in &= with umode_t, so we ignore other bits anyway. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> 2011-11-02T17:05:22+00:00 Linus Torvalds torvalds@linux-foundation.org 2011-11-02T17:05:22+00:00 urn:sha1:34116645d912f65d7eb4508a1db3c9d0e45facb1 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs: udf: Cleanup metadata flags handling udf: Skip mirror metadata FE loading when metadata FE is ok ext3: Allow quota file use root reservation udf: Remove web reference from UDF MAINTAINERS entry quota: Drop path reference on error exit from quotactl udf: Neaten udf_debug uses udf: Neaten logging output, use vsprintf extension %pV udf: Convert printks to pr_<level> udf: Rename udf_warning to udf_warn udf: Rename udf_error to udf_err udf: Promote some debugging messages to udf_error ext3: Remove the obsolete broken EXT3_IOC32_WAIT_FOR_READONLY. udf: Add readpages support for udf. ext3/balloc.c: local functions should be static ext2: fix the outdated comment in ext2_nfs_get_inode() ext3: remove deprecated oldalloc fs/ext3/balloc.c: delete useless initialization fs/ext2/balloc.c: delete useless initialization ext3: fix message in ext3_remount for rw-remount case ext3: Remove i_mutex from ext3_sync_file() Fix up trivial (printf format cleanup) conflicts in fs/udf/udfdecl.h 2011-11-01T00:30:54+00:00 Joe Perches joe@perches.com 2011-11-01T00:11:33+00:00 urn:sha1:b9075fa968a0a4347aef35e235e2995c0e57dddd Standardize the style for compiler based printf format verification. Standardized the location of __printf too. Done via script and a little typing. $ grep -rPl --include=*.[ch] -w "__attribute__" * | \ grep -vP "^(tools|scripts|include/linux/compiler-gcc.h)" | \ xargs perl -n -i -e 'local $/; while (<>) { s/\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf\s*,\s*(.+)\s*,\s*(.+)\s*\)\s*\)\s*\)/__printf($1, $2)/g ; print; }' [akpm@linux-foundation.org: revert arch bits] Signed-off-by: Joe Perches <joe@perches.com> Cc: "Kirill A. Shutemov" <kirill@shutemov.name> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2011-10-31T22:49:30+00:00 Namjae Jeon linkinjeon@gmail.com 2011-10-23T10:28:32+00:00 urn:sha1:3080a74ea39eece6ac21aae768c48ab8b1f89ac1 It is not necessary to load mirror metadata FE when metadata FE is OK. So try to read it only the first time udf_get_pblock_meta25() fails to map the block from metadata FE. Signed-off-by: Ashish Sangwan <ashishsangwan2@gmail.com> Signed-off-by: Namjae Jeon <linkinjeon@gmail.com> Signed-off-by: Jan Kara <jack@suse.cz> 2011-10-31T22:43:52+00:00 Joe Perches joe@perches.com 2011-10-10T08:08:05+00:00 urn:sha1:78ace70c4186c0d18314eb001637aa97d1585e65 Use the current logging styles. Convert a few printks that should have been udf_warn and udf_err. Coalesce formats. Add #define pr_fmt. Move an #include "udfdecls.h" above other includes in udftime.c so pr_fmt works correctly. Strip prefixes from conversions as appropriate. Reorder logging definitions in udfdecl.h Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz> 2011-10-10T17:29:01+00:00 Joe Perches joe@perches.com 2011-10-10T08:08:04+00:00 urn:sha1:a40ecd7b3ccf520ff02da93e8d1ba6cd55c2e359 Rename udf_warning to udf_warn for consistency with normal logging uses of pr_warn. Rename function udf_warning to _udf_warn. Remove __func__ from uses and move __func__ to a new udf_warn macro that calls _udf_warn. Add \n's to uses of udf_warn, remove \n from _udf_warn. Coalesce formats. Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz> 2011-10-10T17:29:01+00:00 Joe Perches joe@perches.com 2011-10-10T08:08:03+00:00 urn:sha1:8076c363da15e7c35a4094974d1b4bcc196b5fa9 Rename udf_error to udf_err for consistency with normal logging uses of pr_err. Rename function udf_err to _udf_err. Remove __func__ from uses and move __func__ to a new udf_err macro that calls _udf_err. Some of the udf_error uses had \n terminations, some did not so standardize \n's to udf_err uses, remove \n from _udf_err function. Coalesce udf_err formats. One message prefixed with udf_read_super is now prefixed with udf_fill_super. Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz> 2011-10-10T17:26:24+00:00 Joe Perches joe@perches.com 2011-10-10T08:08:02+00:00 urn:sha1:7e273e3b41e32716dc122b293b5f15635af495ff If there is a problem with a scratched disc or loader, it's valuable to know which error occurred. Convert some debug messages to udf_error, neaten those messages too. Add the calculated tag checksum and the read checksum to error message. Make udf_error a public function and move the logging prototypes together. Original-patch-by: NamJae Jeon <linkinjeon@gmail.com> Reviewed-by: NamJae Jeon <linkinjeon@gmail.com> Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Jan Kara <jack@suse.cz>