From: Yury Norov <yury.norov@gmail.com> To: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, David Howells <dhowells@redhat.com>, Geert Uytterhoeven <geert@linux-m68k.org>, Jonathan Corbet <corbet@lwn.net>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, Matthew Wilcox <willy@infradead.org>, NeilBrown <neilb@suse.de>, Rasmus Villemoes <linux@rasmusvillemoes.dk>, Russell King <linux@armlinux.org.uk>, Vlastimil Babka <vbabka@suse.cz>, William Kucharski <william.kucharski@oracle.com>, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org Cc: Yury Norov <yury.norov@gmail.com> Subject: [PATCH 0/8] lib: cleanup bitmap-related headers Date: Fri, 1 Jul 2022 05:54:22 -0700 [thread overview] Message-ID: <20220701125430.2907638-1-yury.norov@gmail.com> (raw) This series unifies declarations of bitmap-related functions and aligns return types with values that actually returned. Also, it moves one-liner wrappers around cpumask functions into headers, so that compiler has a chance to optimize better. With this series, GCC 11.2 for ARM64 with kernel v5.19-rc4: add/remove: 15/7 grow/shrink: 461/164 up/down: 14844/-4580 (10264) This +10K didn't surprize me because modern compilers are more agressive in inlining, loop unrolling, and other techniques that increase size of the image. Yury Norov (8): arm: align find_bit defs with generic kernel lib/bitmap: change return values to bool where appropriate lib/bitmap: change type of bitmap_weight to unsigned int cpumask: change return types to bool where appropriate lib/cpumask: change return types to unsigned lib/cpumask: move one-line wrappers around find_bit to the header mm: split include/linux/gfp.h lib/cpumask: move some one-line wrappers to header file Documentation/core-api/mm-api.rst | 8 +- MAINTAINERS | 1 + arch/arm/include/asm/bitops.h | 20 +- include/linux/bitmap.h | 10 +- include/linux/cpumask.h | 125 +++++++++-- include/linux/gfp.h | 334 +---------------------------- include/linux/gfp_flags.h | 338 ++++++++++++++++++++++++++++++ lib/bitmap.c | 9 +- lib/cpumask.c | 97 +-------- tools/include/linux/bitmap.h | 12 +- tools/lib/bitmap.c | 6 +- 11 files changed, 483 insertions(+), 477 deletions(-) create mode 100644 include/linux/gfp_flags.h -- 2.34.1
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From: Yury Norov <yury.norov@gmail.com> To: linux-kernel@vger.kernel.org, Andrew Morton <akpm@linux-foundation.org>, Andy Shevchenko <andriy.shevchenko@linux.intel.com>, David Howells <dhowells@redhat.com>, Geert Uytterhoeven <geert@linux-m68k.org>, Jonathan Corbet <corbet@lwn.net>, "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>, Matthew Wilcox <willy@infradead.org>, NeilBrown <neilb@suse.de>, Rasmus Villemoes <linux@rasmusvillemoes.dk>, Russell King <linux@armlinux.org.uk>, Vlastimil Babka <vbabka@suse.cz>, William Kucharski <william.kucharski@oracle.com>, linux-doc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org Cc: Yury Norov <yury.norov@gmail.com> Subject: [PATCH 0/8] lib: cleanup bitmap-related headers Date: Fri, 1 Jul 2022 05:54:22 -0700 [thread overview] Message-ID: <20220701125430.2907638-1-yury.norov@gmail.com> (raw) This series unifies declarations of bitmap-related functions and aligns return types with values that actually returned. Also, it moves one-liner wrappers around cpumask functions into headers, so that compiler has a chance to optimize better. With this series, GCC 11.2 for ARM64 with kernel v5.19-rc4: add/remove: 15/7 grow/shrink: 461/164 up/down: 14844/-4580 (10264) This +10K didn't surprize me because modern compilers are more agressive in inlining, loop unrolling, and other techniques that increase size of the image. Yury Norov (8): arm: align find_bit defs with generic kernel lib/bitmap: change return values to bool where appropriate lib/bitmap: change type of bitmap_weight to unsigned int cpumask: change return types to bool where appropriate lib/cpumask: change return types to unsigned lib/cpumask: move one-line wrappers around find_bit to the header mm: split include/linux/gfp.h lib/cpumask: move some one-line wrappers to header file Documentation/core-api/mm-api.rst | 8 +- MAINTAINERS | 1 + arch/arm/include/asm/bitops.h | 20 +- include/linux/bitmap.h | 10 +- include/linux/cpumask.h | 125 +++++++++-- include/linux/gfp.h | 334 +---------------------------- include/linux/gfp_flags.h | 338 ++++++++++++++++++++++++++++++ lib/bitmap.c | 9 +- lib/cpumask.c | 97 +-------- tools/include/linux/bitmap.h | 12 +- tools/lib/bitmap.c | 6 +- 11 files changed, 483 insertions(+), 477 deletions(-) create mode 100644 include/linux/gfp_flags.h -- 2.34.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next reply other threads:[~2022-07-01 12:54 UTC|newest] Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-07-01 12:54 Yury Norov [this message] 2022-07-01 12:54 ` [PATCH 0/8] lib: cleanup bitmap-related headers Yury Norov 2022-07-01 12:54 ` [PATCH 1/8] arm: align find_bit declarations with generic kernel Yury Norov 2022-07-01 12:54 ` Yury Norov 2022-07-02 11:55 ` Andy Shevchenko 2022-07-02 11:55 ` Andy Shevchenko 2022-07-01 12:54 ` [PATCH 2/8] lib/bitmap: change return types to bool where appropriate Yury Norov 2022-07-01 12:54 ` Yury Norov 2022-07-01 12:54 ` [PATCH 3/8] lib/bitmap: change type of bitmap_weight to unsigned int Yury Norov 2022-07-01 12:54 ` Yury Norov 2022-07-02 11:57 ` Andy Shevchenko 2022-07-02 11:57 ` Andy Shevchenko 2022-07-01 12:54 ` [PATCH 4/8] cpumask: change return types to bool where appropriate Yury Norov 2022-07-01 12:54 ` Yury Norov 2022-07-01 12:54 ` [PATCH 5/8] lib/cpumask: change return types to unsigned " Yury Norov 2022-07-01 12:54 ` Yury Norov 2022-07-02 12:00 ` Andy Shevchenko 2022-07-02 12:00 ` Andy Shevchenko 2022-07-02 21:59 ` Yury Norov 2022-07-02 21:59 ` Yury Norov 2022-07-01 12:54 ` [PATCH 6/8] lib/cpumask: move trivial wrappers around find_bit to the header Yury Norov 2022-07-01 12:54 ` Yury Norov 2022-07-01 12:54 ` [PATCH 7/8] mm: split include/linux/gfp.h Yury Norov 2022-07-01 12:54 ` Yury Norov 2022-07-02 12:05 ` Andy Shevchenko 2022-07-02 12:05 ` Andy Shevchenko 2022-07-02 12:09 ` Andy Shevchenko 2022-07-02 12:09 ` Andy Shevchenko 2022-07-02 22:06 ` Yury Norov 2022-07-02 22:06 ` Yury Norov 2022-07-01 12:54 ` [PATCH 8/8] lib/cpumask: move some one-line wrappers to header file Yury Norov 2022-07-01 12:54 ` Yury Norov
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