Changes in Makefile

b2441318 - License cleanup: add SPDX GPL-2.0 license identifier to files with no license

Wed, 01 Nov 2017 14:07:57 +0000

License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseMany source files in the tree are missing licensing information, whichmakes it harder for compliance tools to determine the correct license.By default all files without license information are under the defaultlicense 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 bindingshorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart andPhilippe Ombredanne.How this work was done:Patches were generated and checked against linux-4.14-rc6 for a subset ofthe 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 caseswhere non-standard license headers were used, and references to licensehad to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied toa file was done in a spreadsheet of side by side results from of theoutput of two independent scanners (ScanCode & Windriver) producing SPDXtag:value files created by Philippe Ombredanne. Philippe prepared thebase 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 filesassessed. Kate Stewart did a file by file comparison of the scannerresults in the spreadsheet to determine which SPDX license identifier(s)to be applied to the file. She confirmed any determination that was notimmediately 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 licenseidentifiers 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 thespreadsheet to determine the SPDX license identifiers to apply to thesource files by Kate, Philippe, Thomas and, in some cases, confirmationby lawyers working with the Linux Foundation.Kate also obtained a third independent scan of the 4.13 code base fromFOSSology, and compared selected files where the other two scannersdisagreed against that SPDX file, to see if there was new insights. TheWindriver scanner is based on an older version of FOSSology in part, sothey are related.Thomas did random spot checks in about 500 files from the spreadsheetsfor the uapi headers and agreed with SPDX license identifier in thefiles he inspected. For the non-uapi files Thomas did random spot checksin about 15000 files.In initial set of patches against 4.14-rc6, 3 files were found to havecopy/paste license identifier errors, and have been fixed to reflect thecorrect identifier.Additionally Philippe spent 10 hours this week doing a detailed manualinspection and review of the 12,461 patched files from the initial patchversion 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 correctThis produced a worksheet with 20 files needing minor correction. Thisworksheet was then exported into 3 different .csv files for thedifferent types of files to be modified.These .csv files were then reviewed by Greg. Thomas wrote a script toparse the csv files and add the proper SPDX tag to the file, in theformat that the file expected. This script was further refined by Gregbased on the output to detect more types of files automatically and todistinguish between header and source .c files (which need differentcomment types.) Finally Greg ran the script using the .csv files togenerate the patches.Reviewed-by: Kate Stewart Reviewed-by: Philippe Ombredanne Reviewed-by: Thomas Gleixner Signed-off-by: Greg Kroah-Hartman List of files: /linux-6.15/fs/gfs2/Makefile

2ab9cd1c - GFS2: Rename ops_inode.c to inode.c

Tue, 10 May 2011 12:12:49 +0000

GFS2: Rename ops_inode.c to inode.cThis is the final part of the ops_inode.c/inode.c reordering. Weare left with a single file called inode.c which now containsall the inode operations, as expected.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

64ea5402 - GFS2: Inode.c is empty now, remove it

Tue, 10 May 2011 12:09:53 +0000

GFS2: Inode.c is empty now, remove itSigned-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

0ccd234c - fs: change to new flag variable

Fri, 14 Jan 2011 14:12:35 +0000

fs: change to new flag variableReplace EXTRA_CFLAGS with ccflags-y. And change ntfs-objs to ntfs-yfor cleaner conditional inclusion.Signed-off-by: matt mooney Acked-by: WANG Cong Signed-off-by: Michal Marek List of files: /linux-6.15/fs/gfs2/Makefile

307cf6e6 - GFS2: Rename eattr.[ch] as xattr.[ch]

Wed, 26 Aug 2009 17:51:04 +0000

GFS2: Rename eattr.[ch] as xattr.[ch]Use the more conventional name for the extended attributesupport code. Update all the places which care.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

40b78a32 - GFS2: Clean up of extended attribute support

Wed, 26 Aug 2009 17:41:32 +0000

GFS2: Clean up of extended attribute supportThis has been on my list for some time. We need to change the wayin which we handle extended attributes to allow faster file creationtimes (by reducing the number of transactions required) and theextended attribute code is the main obstacle to this.In addition to that, the VFS provides a way to demultiplex the xattrcalls which we ought to be using, rather than rolling our own. Thispatch changes the GFS2 code to use that VFS feature and as a resultthe code shrinks by a couple of hundred lines or so, and becomeseasier to read.I'm planning on doing further clean up work in this area, but thispatch is a good start. The cleaned up code also uses the more usual"xattr" shorthand, I plan to eliminate the use of "eattr" eventuallyand in the mean time it serves as a flag as to which bits of the codehave been updated.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

63997775 - GFS2: Add tracepoints

Fri, 12 Jun 2009 07:49:20 +0000

GFS2: Add tracepointsThis patch adds the ability to trace various aspects of the GFS2filesystem. The trace points are divided into three groups,glocks, logging and bmap. These points have been chosen becausethey allow inspection of the major internal functions of GFS2and they are also generic enough that they are unlikely to needany major changes as the filesystem evolves.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

9e6e0a12 - GFS2: Merge mount.c and ops_super.c into super.c

Fri, 22 May 2009 09:36:01 +0000

GFS2: Merge mount.c and ops_super.c into super.cmount.c only contained a single function, so is not reallyworth retaining on its own. All of the super related codeis now either in super.c or ops_fstype.cSigned-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

b1e71b06 - GFS2: Clean up some file names

Fri, 22 May 2009 09:01:55 +0000

GFS2: Clean up some file namesThis patch renames the ops_*.c files which have no counterpartwithout the ops_ prefix in order to shorten the name and makeit more readable. In addition, ops_address.h (which was verysmall) is moved into inode.h and inode.h is cleaned up byadding extern where required.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

f057f6cd - GFS2: Merge lock_dlm module into GFS2

Mon, 12 Jan 2009 10:43:39 +0000

GFS2: Merge lock_dlm module into GFS2This is the big patch that I've been working on for some timenow. There are many reasons for wanting to make this changesuch as: o Reducing overhead by eliminating duplicated fields between structures o Simplifcation of the code (reduces the code size by a fair bit) o The locking interface is now the DLM interface itself as proposed some time ago. o Fewer lookups of glocks when processing replies from the DLM o Fewer memory allocations/deallocations for each glock o Scope to do further optimisations in the future (but this patch is more than big enough for now!)Please note that (a) this patch relates to the lock_dlm module andnot the DLM itself, that is still a separate module; and (b) thatwe retain the ability to build GFS2 as a standalone single nodefilesystem with out requiring the DLM.This patch needs a lot of testing, hence my keeping it I restartedmy -git tree after the last merge window. That way, this has the maximumexposure before its merged. This is (modulo a few minor bug fixes) thesame patch that I've been posting on and off the the last three monthsand its passed a number of different tests so far.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

97cc1025 - GFS2: Kill two daemons with one patch

Thu, 20 Nov 2008 13:39:47 +0000

GFS2: Kill two daemons with one patchThis patch removes the two daemons, gfs2_scand and gfs2_glockdand replaces them with a shrinker which is called from the VM.The net result is that GFS2 responds better when there is memorypressure, since it shrinks the glock cache at the same rateas the VFS shrinks the dcache and icache. There are no longerany time based criteria for shrinking glocks, they are keptuntil such time as the VM asks for more memory and then wedemote just as many glocks as required.There are potential future changes to this code, including thepossibility of sorting the glocks which are to be written backinto inode number order, to get a better I/O ordering. It wouldbe very useful to have an elevator based workqueue implementationfor this, as that would automatically deal with the read I/O casesat the same time.This patch is my answer to Andrew Morton's remark, made duringthe initial review of GFS2, asking why GFS2 needs so many kernelthreads, the answer being that it doesn't :-) This patch is anet loss of about 200 lines of code.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

048bca22 - [GFS2] No lock_nolock

Fri, 23 May 2008 13:46:04 +0000

[GFS2] No lock_nolockThis patch merges the lock_nolock module into GFS2 itself. As well as removingsome of the overhead of the module, it also means that its now impossible tobuild GFS2 without a lock module (which would be a pointless thing to doanyway).We also plan to merge lock_dlm into GFS2 in the future, but that is a moretricky task, and will therefore be a separate patch.Signed-off-by: Steven Whitehouse Cc: David Teigland List of files: /linux-6.15/fs/gfs2/Makefile

da755fdb - [GFS2] Remove lm.[ch] and distribute content

Wed, 30 Jan 2008 15:34:04 +0000

[GFS2] Remove lm.[ch] and distribute contentThe functions in lm.c were just wrappers which were mostlyonly used in one other file. By moving the functions tothe files where they are being used, they can be markedstatic and also this will usually result in them being inlinedsince they are often only used from one point in the code.A couple of really trivial functions have been inlined by handinto the function which called them as it makes the code clearerto do that.We also gain from one fewer function call in the glock lock andunlock paths.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

3cc3f710 - [GFS2] Use ->page_mkwrite() for mmap()

Mon, 15 Oct 2007 14:40:33 +0000

[GFS2] Use ->page_mkwrite() for mmap()This cleans up the mmap() code path for GFS2 by implementing thepage_mkwrite function for GFS2. We are thus able to use thegeneric filemap_fault function for our ->fault() implementation.This now means that shared writable mappings will be much moreefficiently shared across the cluster if there is a reasonableproportion of read activity (the greater proportion, the better).As a side effect, it also reduces the size of the code, removesspecial cases from readpage and readpages, and makes the codepath easier to follow.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

bb8d8a6f - [GFS2] Fix sign problem in quota/statfs and cleanup _host structures

Fri, 01 Jun 2007 13:11:58 +0000

[GFS2] Fix sign problem in quota/statfs and cleanup _host structuresThis patch fixes some sign issues which were accidentally introducedinto the quota & statfs code during the endianess annotation process.Also included is a general clean up which moves all of the _hoststructures out of gfs2_ondisk.h (where they should not have been tostart with) and into the places where they are actually used (often onlyone place). Also those _host structures which are not required any moreare removed entirely (which is the eventual plan for all of them).The conversion routines from ondisk.c are also moved into the placeswhere they are actually used, which for almost every one, was just onesingle place, so all those are now static functions. This also cleans upthe end of gfs2_ondisk.h which no longer needs the #ifdef __KERNEL__.The net result is a reduction of about 100 lines of code, many functionsnow marked static plus the bug fixes as mentioned above. For goodmeasure I ran the code through sparse after making these changes tocheck that there are no warnings generated.This fixes Red Hat bz #239686Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

e9fc2aa0 - [GFS2] Update copyright, tidy up incore.h

Fri, 01 Sep 2006 15:05:15 +0000

[GFS2] Update copyright, tidy up incore.hAs per comments from Jan Engelhardt thisupdates the copyright message to say "version" in full rather than"v.2". Also incore.h has been updated to remove forward structuredeclarations which are not required.The gfs2_quota_lvb structure has now had endianess annotations addedto it. Also quota.c has been updated so that we now store thelvb data locally in endian independant format to avoid needinga structure in host endianess too. As a result the endianessconversions are done as required at various points and thus theconversion routines in lvb.[ch] are no longer required. I'vemoved the one remaining constant in lvb.h thats used into lm.hand removed the unused lvb.[ch].I have not changed the HIF_ constants. That is left to a later patchwhich I hope will unify the gh_flags and gh_iflags fields of thestruct gfs2_holder.Cc: Jan Engelhardt Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

ba7f7290 - [GFS2] Remove page.[ch]

Wed, 26 Jul 2006 15:27:10 +0000

[GFS2] Remove page.[ch]The remaining routines in page.c were all only used in one otherfile, so they are now moved into the files where they are referencedand made static. Thus page.[ch] are no longer required.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

feaa7bba - [GFS2] Fix unlinked file handling

Wed, 14 Jun 2006 19:32:57 +0000

[GFS2] Fix unlinked file handlingThis patch fixes the way we have been dealing with unlinked,but still open files. It removes all limits (other than memoryfor inodes, as per every other filesystem) on numbers of thesewhich we can support on GFS2. It also means that (like otherfs) its the responsibility of the last process to close the fileto deallocate the storage, rather than the person who did theunlinking. Note that with GFS2, those two events might take placeon different nodes.Also there are a number of other changes: o We use the Linux inode subsystem as it was intended to beused, wrt allocating GFS2 inodes o The Linux inode cache is now the point which we use forlocal enforcement of only holding one copy of the inode incore at once (previous to this we used the glock layer). o We no longer use the unlinked "special" file. We just ignore itcompletely. This makes unlinking more efficient. o We now use the 4th block allocation state. The previously unusedstate is used to track unlinked but still open inodes. o gfs2_inoded is no longer needed o Several fields are now no longer needed (and removed) from the incore struct gfs2_inode o Several fields are no longer needed (and removed) from the in coresuperblockThere are a number of future possible optimisations and clean upswhich have been made possible by this patch.Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

02f211f4 - [GFS2] Remove bits.c from the Makefile

Thu, 18 May 2006 18:03:43 +0000

[GFS2] Remove bits.c from the MakefileSigned-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile

b5ea3e1e - [GFS2] Tidy up Makefile & Kconfig

Mon, 24 Apr 2006 18:14:42 +0000

[GFS2] Tidy up Makefile & KconfigRemove select of SYSFS as requested by Greg KH. Change whitespace totabs rather than spaces in places where it was incorrect and removed'default m' as suggested by Adrian Bunk.Reorganised Makefile as suggested by Sam Ravnborg.Cc: Sam Ravnborg Cc: Adrian Bunk Cc: Greg KH Signed-off-by: Steven Whitehouse List of files: /linux-6.15/fs/gfs2/Makefile