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* scripts: fix gfp-translate after ___GFP_*_BITS conversion to an enumMarc Zyngier2024-09-011-17/+49
| | | | | | | | | | | | | | | | | | | | | | | Richard reports that since 772dd0342727c ("mm: enumerate all gfp flags"), gfp-translate is broken, as the bit numbers are implicit, leaving the shell script unable to extract them. Even more, some bits are now at a variable location, making it double extra hard to parse using a simple shell script. Use a brute-force approach to the problem by generating a small C stub that will use the enum to dump the interesting bits. As an added bonus, we are now able to identify invalid bits for a given configuration. As an added drawback, we cannot parse include files that predate this change anymore. Tough luck. Link: https://lkml.kernel.org/r/20240823163850.3791201-1-maz@kernel.org Fixes: 772dd0342727 ("mm: enumerate all gfp flags") Signed-off-by: Marc Zyngier <maz@kernel.org> Reported-by: Richard Weinberger <richard@nod.at> Cc: Petr Tesařík <petr@tesarici.cz> Cc: Suren Baghdasaryan <surenb@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* scripts: fix the gfp flags header path in gfp-translatePrathu Baronia2023-06-191-3/+3
| | | | | | | | | | | | | | | | | | Since gfp flags have been shifted to gfp_types.h so update the path in the gfp-translate script. Link: https://lkml.kernel.org/r/20230608154450.21758-1-prathubaronia2011@gmail.com Fixes: cb5a065b4ea9c ("headers/deps: mm: Split <linux/gfp_types.h> out of <linux/gfp.h>") Signed-off-by: Prathu Baronia <prathubaronia2011@gmail.com> Reviewed-by: David Hildenbrand <david@redhat.com> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Nathan Chancellor <nathan@kernel.org> Cc: Nick Desaulniers <ndesaulniers@google.com> Cc: Nicolas Schier <nicolas@fjasle.eu> Cc: Ingo Molnar <mingo@kernel.org> Cc: Yury Norov <yury.norov@gmail.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 166Thomas Gleixner2019-05-301-1/+1
| | | | | | | | | | | | | | | | | | | | Based on 1 normalized pattern(s): licensed under the terms of the gnu gpl license version 2 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 62 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070033.929121379@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* chmod +x scripts/gfp-translateDave Jones2012-06-271-0/+0
| | | | | | | This script lacks an executable bit. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* scripts: fix gfp-translate for recent changes to gfp.hMel Gorman2010-11-251-1/+6
| | | | | | | | | | | | The recent changes to gfp.h to satisfy sparse broke scripts/gfp-translate. This patch fixes it up to work with old and new versions of gfp.h . [akpm@linux-foundation.org: use `grep -q', per WANG Cong] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: Namhyung Kim <namhyung@gmail.com> Reviewed-by: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* tree-wide: Assorted spelling fixesDaniel Mack2010-02-091-1/+1
| | | | | | | | | | | In particular, several occurances of funny versions of 'success', 'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address', 'beginning', 'desirable', 'separate' and 'necessary' are fixed. Signed-off-by: Daniel Mack <daniel@caiaq.de> Cc: Joe Perches <joe@perches.com> Cc: Junio C Hamano <gitster@pobox.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* mm: add a gfp-translate script to help understand page allocation failure ↵Mel Gorman2009-06-161-0/+81
reports The page allocation failure messages include a line that looks like page allocation failure. order:1, mode:0x4020 The mode is easy to translate but irritating for the lazy and a bit error prone. This patch adds a very simple helper script gfp-translate for the mode: portion of the page allocation failure messages. An example usage looks like mel@machina:~/linux-2.6 $ scripts/gfp-translate 0x4020 Source: /home/mel/linux-2.6 Parsing: 0x4020 #define __GFP_HIGH (0x20) /* Should access emergency pools? */ #define __GFP_COMP (0x4000) /* Add compound page metadata */ The script is not a work of art but it has come in handy for me a few times so I thought I would share. [akpm@linux-foundation.org: clarify an error message] Signed-off-by: Mel Gorman <mel@csn.ul.ie> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Christoph Hellwig <hch@infradead.org> Cc: Minchan Kim <minchan.kim@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>