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path: root/fs/orangefs/orangefs-sysfs.c
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2019-05-03orangefs: add orangefs_revalidate_mappingMartin Brandenburg1-0/+22
This is modeled after NFS, except our method is different. We use a simple timer to determine whether to invalidate the page cache. This is bound to perform. This addes a sysfs parameter cache_timeout_msecs which controls the time between page cache invalidations. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-10-10orangefs: rate limit the client not running info messageColin Ian King1-1/+1
Currently accessing various /sys/fs/orangefs files will spam the kernel log with the following info message when the client is not running: [ 491.489284] sysfs_service_op_show: Client not running :-5: Rate limit this info message to make it less spammy. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2018-06-15fix a series of Documentation/ broken file name referencesMauro Carvalho Chehab1-1/+1
As files move around, their previous links break. Fix the references for them. Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org> Acked-by: Jonathan Corbet <corbet@lwn.net>
2017-11-02License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman1-0/+1
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-02-03orangefs: Support readahead_readcnt parameter.Martin Brandenburg1-2/+30
Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-12-12orangefs: Axe some dead codeChristophe JAILLET1-9/+0
The "perf_counter_reset" case has already been handled above. Moreover "ORANGEFS_PARAM_REQUEST_OP_READAHEAD_COUNT_SIZE" is not a really consistent. It is likely that this (dead) code is a cut and paste left over. Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Reviewed-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-09-28Merge branch 'misc' into for-nextMartin Brandenburg1-954/+239
Pull in an OrangeFS branch containing miscellaneous improvements. - clean up debugfs globals - remove dead code in sysfs - reorganize duplicated sysfs attribute structs - consolidate sysfs show and store functions - remove duplicated sysfs_ops structures - describe organization of sysfs - make devreq_mutex static - g_orangefs_stats -> orangefs_stats for consistency - rename most remaining global variables
2016-08-16orangefs: rename most remaining global variablesMartin Brandenburg1-4/+4
Only op_timeout_secs, slot_timeout_secs, and hash_table_size are left because they are exposed as module parameters. All other global variables have the orangefs_ prefix. Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-15orangefs: g_orangefs_stats -> orangefs_stats for consistencyMartin Brandenburg1-2/+2
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-15orangefs: describe organization of sysfsMartin Brandenburg1-0/+7
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-15orangefs: remove duplicated sysfs_ops structuresMartin Brandenburg1-58/+15
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-15orangefs: consolidate sysfs show and store functionsMartin Brandenburg1-317/+148
Remove a good bit of obfuscated and duplicated code. Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-15orangefs: reorganize duplicated sysfs attribute structsMartin Brandenburg1-391/+81
We had a separate struct type for each type of attribute, but they all did the exact same thing. Consolidate them into one struct orangefs_attribute type. Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-15orangefs: remove dead code in sysfsMartin Brandenburg1-280/+81
We had a pageful of structures containing kobjects and variables to store sysfs entries. However only the kobjects were in use. Replace them with kobjects. Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-12orangefs: do not allow client readahead cache without feature bitMartin Brandenburg1-0/+19
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-08orangefs: add readahead count and size to sysfsMartin Brandenburg1-8/+115
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-08orangefs: turn param response value into unionMartin Brandenburg1-5/+3
This will support a upcoming request where two related values need to be updated atomically. This was done without a union in the OrangeFS server source already. Since that will break the kernel protocol, it has been fixed there and done here in a way that does not break the kernel protocol. Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-08-02orangefs: Allow dcache and getattr cache time to be configured.Martin Brandenburg1-1/+42
Signed-off-by: Martin Brandenburg <martin@omnibond.com>
2016-03-14Orangefs: fix sloppy cleanups of debugfs and sysfs init failures.Mike Marshall1-45/+44
Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2016-01-23orangefs: hopefully saner op refcounting and lockingAl Viro1-21/+7
* create with refcount 1 * make op_release() decrement and free if zero (i.e. old put_op() has become that). * mark when submitter has given up waiting; from that point nobody else can move between the lists, change state, etc. * have daemon read/write_iter grab a reference when picking op and *always* give it up in the end * don't put into hash until we know it's been successfully passed to daemon * move op->lock _lower_ than htab_in_progress_lock (and make sure to take it in purge_inprogress_ops()) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
2015-12-04Orangefs: change pvfs2 filenames to orangefsMike Marshall1-0/+1787
Also changed references within source files that referred to header files whose names had changed. Signed-off-by: Mike Marshall <hubcap@omnibond.com>