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/ipc/Makefile

0d060606 - mqueue: move compat syscalls to native ones

Wed, 28 Jun 2017 01:32:36 +0000

mqueue: move compat syscalls to native ones... and stop messing with compat_alloc_user_space() and friends[braino fix from Colin King folded in]Signed-off-by: Al Viro List of files: /linux-6.15/ipc/Makefile

0050ee05 - ipc/msg: increase MSGMNI, remove scaling

Sat, 13 Dec 2014 00:58:17 +0000

ipc/msg: increase MSGMNI, remove scalingSysV can be abused to allocate locked kernel memory. For most systems, asmall limit doesn't make sense, see the discussion with regards to SHMMAX.Therefore: increase MSGMNI to the maximum supported.And: If we ignore the risk of locking too much memory, then an automaticscaling of MSGMNI doesn't make sense. Therefore the logic can be removed.The code preserves auto_msgmni to avoid breaking any user space applicationsthat expect that the value exists.Notes:1) If an administrator must limit the memory allocations, then he can setMSGMNI as necessary.Or he can disable sysv entirely (as e.g. done by Android).2) MSGMAX and MSGMNB are intentionally not increased, as these values are usedto control latency vs. throughput:If MSGMNB is large, then msgsnd() just returns and more messages can be queuedbefore a task switch to a task that calls msgrcv() is forced.[akpm@linux-foundation.org: coding-style fixes]Signed-off-by: Manfred Spraul Cc: Davidlohr Bueso Cc: Rafael Aquini Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/ipc/Makefile

baed7fc9 - Add generic sys_ipc wrapper

Wed, 10 Mar 2010 23:21:18 +0000

Add generic sys_ipc wrapperAdd a generic implementation of the ipc demultiplexer syscall. Except fors390 and sparc64 all implementations of the sys_ipc are nearly identical.There are slight differences in the types of the parameters, where mipsand powerpc as the only 64-bit architectures with sys_ipc use unsignedlong for the "third" argument as it gets casted to a pointer later, whileit traditionally is an "int" like most other paramters. frv goes evenfurther and uses unsigned long for all parameters execept for "ptr" whichis a pointer type everywhere. The change from int to unsigned long for"third" and back to "int" for the others on frv should be fine due to thein-register calling conventions for syscalls (we already had a similarissue with the generic sys_ptrace), but I'd prefer to have the archmaintainers looks over this in details.Except for that h8300, m68k and m68knommu lack an impplementation of thesemtimedop sub call which this patch adds, and various architectures havegets used - at least on i386 it seems superflous as the compat code onx86-64 and ia64 doesn't even bother to implement it.[akpm@linux-foundation.org: add sys_ipc to sys_ni.c]Signed-off-by: Christoph Hellwig Cc: Ralf Baechle Cc: Benjamin Herrenschmidt Cc: Paul Mundt Cc: Jeff Dike Cc: Hirokazu Takata Cc: Thomas Gleixner Cc: Ingo Molnar Reviewed-by: H. Peter Anvin Cc: Al Viro Cc: Arnd Bergmann Cc: Heiko Carstens Cc: Martin Schwidefsky Cc: "Luck, Tony" Cc: James Morris Cc: Andreas Schwab Acked-by: Jesper Nilsson Acked-by: Russell King Acked-by: David Howells Acked-by: Kyle McMartin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/ipc/Makefile

bdc8e5f8 - namespaces: mqueue namespace: adapt sysctl

Tue, 07 Apr 2009 02:01:11 +0000

namespaces: mqueue namespace: adapt sysctlLargely inspired from ipc/ipc_sysctl.c. This patch isolates the mqueuesysctl stuff in its own file.[akpm@linux-foundation.org: build fix]Signed-off-by: Cedric Le Goater Signed-off-by: Nadia Derbey Signed-off-by: Serge E. Hallyn Cc: Alexey Dobriyan Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/ipc/Makefile

e2c284d8 - ipc: recompute msgmni on ipc namespace creation/removal

Tue, 29 Apr 2008 08:00:44 +0000

ipc: recompute msgmni on ipc namespace creation/removalIntroduce a notification mechanism that aims at recomputing msgmni each timean ipc namespace is created or removed.The ipc namespace notifier chain already defined for memory hotplug managementis used for that purpose too.Each time a new ipc namespace is allocated or an existing ipc namespace isremoved, the ipcns notifier chain is notified. The callback routine for eachregistered ipc namespace is then activated in order to recompute msgmni forthat namespace.Signed-off-by: Nadia Derbey Cc: Yasunori Goto Cc: Matt Helsley Cc: Mingming Cao Cc: Pierre Peiffer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/ipc/Makefile

b6b337ad - ipc: recompute msgmni on memory add / remove

Tue, 29 Apr 2008 08:00:42 +0000

ipc: recompute msgmni on memory add / removeIntroduce the registration of a callback routine that recomputes msg_ctlmniupon memory add / remove.A single notifier block is registered in the hotplug memory chain for all theipc namespaces.Since the ipc namespaces are not linked together, they have their ownnotification chain: one notifier_block is defined per ipc namespace.Each time an ipc namespace is created (removed) it registers (unregisters) itsnotifier block in (from) the ipcns chain. The callback routine registered inthe memory chain invokes the ipcns notifier chain with the IPCNS_LOWMEM event. Each callback routine registered in the ipcns namespace, in turn, recomputesmsgmni for the owning namespace.Signed-off-by: Nadia Derbey Cc: Yasunori Goto Cc: Matt Helsley Cc: Mingming Cao Cc: Pierre Peiffer Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/ipc/Makefile

ae5e1b22 - namespaces: move the IPC namespace under IPC_NS option

Fri, 08 Feb 2008 12:18:22 +0000

namespaces: move the IPC namespace under IPC_NS optionCurrently the IPC namespace management code is spread over the ipc/*.c files.I moved this code into ipc/namespace.c file which is compiled out when needed.The linux/ipc_namespace.h file is used to store the prototypes of thefunctions in namespace.c and the stubs for NAMESPACES=n case. This is doneso, because the stub for copy_ipc_namespace requires the knowledge of theCLONE_NEWIPC flag, which is in sched.h. But the linux/ipc.h file itself inincluded into many many .c files via the sys.h->sem.h sequence so adding thesched.h into it will make all these .c depend on sched.h which is not thatgood. On the other hand the knowledge about the namespaces stuff is requiredin 4 .c files only.Besides, this patch compiles out some auxiliary functions from ipc/sem.c,msg.c and shm.c files. It turned out that moving these functions intonamespaces.c is not that easy because they use many other calls and macrosfrom the original file. Moving them would make this patch complicated. Onthe other hand all these functions can be consolidated, so I will send aseparate patch doing this a bit later.Signed-off-by: Pavel Emelyanov Acked-by: Serge Hallyn Cc: Cedric Le Goater Cc: "Eric W. Biederman" Cc: Herbert Poetzl Cc: Kirill Korotaev Cc: Sukadev Bhattiprolu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/ipc/Makefile

a5494dcd - [PATCH] sysctl: move SYSV IPC sysctls to their own file

Wed, 14 Feb 2007 08:34:06 +0000

[PATCH] sysctl: move SYSV IPC sysctls to their own fileThis is just a simple cleanup to keep kernel/sysctl.c from getting to crowdedwith special cases, and by keeping all of the ipc logic to together it makesthe code a little more readable.[gcoady.lk@gmail.com: build fix]Signed-off-by: Eric W. Biederman Cc: Serge E. Hallyn Cc: Herbert Poetzl Cc: Kirill Korotaev Signed-off-by: Grant Coady Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds List of files: /linux-6.15/ipc/Makefile

1da177e4 - Linux-2.6.12-rc2

Sat, 16 Apr 2005 22:20:36 +0000

Linux-2.6.12-rc2Initial git repository build. I'm not bothering with the full history,even though we have it. We can create a separate "historical" gitarchive of that later if we want to, and in the meantime it's about3.2GB when imported into git - space that would just make the earlygit days unnecessarily complicated, when we don't have a lot of goodinfrastructure for it.Let it rip! List of files: /linux-6.15/ipc/Makefile