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Peter Anvin" , Ingo Molnar , Jiri Slaby , John Ogness , Josh Triplett , Masahiro Yamada , Matthew Wilcox , Peter Zijlstra , Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , Willem de Bruijn , Yoann Congal , Vegard Nossum Subject: [PATCH v6 1/3] printk: Fix LOG_CPU_MAX_BUF_SHIFT when BASE_SMALL is enabled Date: Sun, 3 Mar 2024 22:46:50 +0100 Message-Id: <20240303214652.727140-2-yoann.congal@smile.fr> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240303214652.727140-1-yoann.congal@smile.fr> References: <20240303214652.727140-1-yoann.congal@smile.fr> Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 LOG_CPU_MAX_BUF_SHIFT default value depends on BASE_SMALL: config LOG_CPU_MAX_BUF_SHIFT default 12 if !BASE_SMALL default 0 if BASE_SMALL But, BASE_SMALL is a config of type int and "!BASE_SMALL" is always evaluated to true whatever is the value of BASE_SMALL. This patch fixes this by using the correct conditional operator for int type : BASE_SMALL != 0. Note: This changes CONFIG_LOG_CPU_MAX_BUF_SHIFT=12 to CONFIG_LOG_CPU_MAX_BUF_SHIFT=0 for BASE_SMALL defconfigs, but that will not be a big impact due to this code in kernel/printk/printk.c: /* by default this will only continue through for large > 64 CPUs */ if (cpu_extra <= __LOG_BUF_LEN / 2) return; Systems using CONFIG_BASE_SMALL and having 64+ CPUs should be quite rare. John Ogness (printk reviewer) wrote: > For printk this will mean that BASE_SMALL systems were probably > previously allocating/using the dynamic ringbuffer and now they will > just continue to use the static ringbuffer. Which is fine and saves > memory (as it should). Petr Mladek (printk maintainer) wrote: > More precisely, it allocated the buffer dynamically when the sum > of per-CPU-extra space exceeded half of the default static ring > buffer. This happened for systems with more than 64 CPUs with > the default config values. Reported-by: Geert Uytterhoeven Closes: https://lore.kernel.org/all/CAMuHMdWm6u1wX7efZQf=2XUAHascps76YQac6rdnQGhc8nop_Q@mail.gmail.com/ Reported-by: Vegard Nossum Closes: https://lore.kernel.org/all/f6856be8-54b7-0fa0-1d17-39632bf29ada@oracle.com/ Fixes: 4e244c10eab3 ("kconfig: remove unneeded symbol_empty variable") Reviewed-by: Petr Mladek Reviewed-by: Masahiro Yamada Signed-off-by: Yoann Congal --- init/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 8426d59cc634d..ad4b6f778d2bd 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -743,8 +743,8 @@ config LOG_CPU_MAX_BUF_SHIFT int "CPU kernel log buffer size contribution (13 => 8 KB, 17 => 128KB)" depends on SMP range 0 21 - default 12 if !BASE_SMALL - default 0 if BASE_SMALL + default 0 if BASE_SMALL != 0 + default 12 depends on PRINTK help This option allows to increase the default ring buffer size From patchwork Sun Mar 3 21:46:51 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoann Congal X-Patchwork-Id: 13579898 Received: from mail-wm1-f44.google.com (mail-wm1-f44.google.com [209.85.128.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 6075D7A719 for ; 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Sun, 03 Mar 2024 13:47:15 -0800 (PST) Received: from P-ASN-ECS-830T8C3.numericable.fr ([89.159.1.53]) by smtp.gmail.com with ESMTPSA id bu16-20020a056000079000b0033dc3f3d689sm10525236wrb.93.2024.03.03.13.47.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 03 Mar 2024 13:47:15 -0800 (PST) From: Yoann Congal To: linux-fsdevel@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org, x86@kernel.org Cc: =?utf-8?q?Andr=C3=A9_Almeida?= , Borislav Petkov , Darren Hart , Dave Hansen , Davidlohr Bueso , Geert Uytterhoeven , Greg Kroah-Hartman , "H . Peter Anvin" , Ingo Molnar , Jiri Slaby , John Ogness , Josh Triplett , Masahiro Yamada , Matthew Wilcox , Peter Zijlstra , Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , Willem de Bruijn , Yoann Congal Subject: [PATCH v6 2/3] printk: Change type of CONFIG_BASE_SMALL to bool Date: Sun, 3 Mar 2024 22:46:51 +0100 Message-Id: <20240303214652.727140-3-yoann.congal@smile.fr> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240303214652.727140-1-yoann.congal@smile.fr> References: <20240303214652.727140-1-yoann.congal@smile.fr> Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 CONFIG_BASE_SMALL is currently a type int but is only used as a boolean. So, change its type to bool and adapt all usages: CONFIG_BASE_SMALL == 0 becomes !IS_ENABLED(CONFIG_BASE_SMALL) and CONFIG_BASE_SMALL != 0 becomes IS_ENABLED(CONFIG_BASE_SMALL). Reviewed-by: Petr Mladek Reviewed-by: Greg Kroah-Hartman Reviewed-by: Masahiro Yamada Signed-off-by: Yoann Congal --- arch/x86/include/asm/mpspec.h | 6 +++--- drivers/tty/vt/vc_screen.c | 2 +- include/linux/threads.h | 4 ++-- include/linux/udp.h | 2 +- include/linux/xarray.h | 2 +- init/Kconfig | 6 ++---- kernel/futex/core.c | 2 +- kernel/user.c | 2 +- 8 files changed, 12 insertions(+), 14 deletions(-) diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h index 4b0f98a8d338d..c01d3105840cf 100644 --- a/arch/x86/include/asm/mpspec.h +++ b/arch/x86/include/asm/mpspec.h @@ -15,10 +15,10 @@ extern int pic_mode; * Summit or generic (i.e. installer) kernels need lots of bus entries. * Maximum 256 PCI busses, plus 1 ISA bus in each of 4 cabinets. */ -#if CONFIG_BASE_SMALL == 0 -# define MAX_MP_BUSSES 260 -#else +#ifdef CONFIG_BASE_SMALL # define MAX_MP_BUSSES 32 +#else +# define MAX_MP_BUSSES 260 #endif #define MAX_IRQ_SOURCES 256 diff --git a/drivers/tty/vt/vc_screen.c b/drivers/tty/vt/vc_screen.c index 67e2cb7c96eec..da33c6c4691c0 100644 --- a/drivers/tty/vt/vc_screen.c +++ b/drivers/tty/vt/vc_screen.c @@ -51,7 +51,7 @@ #include #define HEADER_SIZE 4u -#define CON_BUF_SIZE (CONFIG_BASE_SMALL ? 256 : PAGE_SIZE) +#define CON_BUF_SIZE (IS_ENABLED(CONFIG_BASE_SMALL) ? 256 : PAGE_SIZE) /* * Our minor space: diff --git a/include/linux/threads.h b/include/linux/threads.h index c34173e6c5f18..1674a471b0b4c 100644 --- a/include/linux/threads.h +++ b/include/linux/threads.h @@ -25,13 +25,13 @@ /* * This controls the default maximum pid allocated to a process */ -#define PID_MAX_DEFAULT (CONFIG_BASE_SMALL ? 0x1000 : 0x8000) +#define PID_MAX_DEFAULT (IS_ENABLED(CONFIG_BASE_SMALL) ? 0x1000 : 0x8000) /* * A maximum of 4 million PIDs should be enough for a while. * [NOTE: PID/TIDs are limited to 2^30 ~= 1 billion, see FUTEX_TID_MASK.] */ -#define PID_MAX_LIMIT (CONFIG_BASE_SMALL ? PAGE_SIZE * 8 : \ +#define PID_MAX_LIMIT (IS_ENABLED(CONFIG_BASE_SMALL) ? PAGE_SIZE * 8 : \ (sizeof(long) > 4 ? 4 * 1024 * 1024 : PID_MAX_DEFAULT)) /* diff --git a/include/linux/udp.h b/include/linux/udp.h index d04188714dca1..b456417fb4515 100644 --- a/include/linux/udp.h +++ b/include/linux/udp.h @@ -24,7 +24,7 @@ static inline struct udphdr *udp_hdr(const struct sk_buff *skb) } #define UDP_HTABLE_SIZE_MIN_PERNET 128 -#define UDP_HTABLE_SIZE_MIN (CONFIG_BASE_SMALL ? 128 : 256) +#define UDP_HTABLE_SIZE_MIN (IS_ENABLED(CONFIG_BASE_SMALL) ? 128 : 256) #define UDP_HTABLE_SIZE_MAX 65536 static inline u32 udp_hashfn(const struct net *net, u32 num, u32 mask) diff --git a/include/linux/xarray.h b/include/linux/xarray.h index cb571dfcf4b16..3f81ee5f9fb9c 100644 --- a/include/linux/xarray.h +++ b/include/linux/xarray.h @@ -1141,7 +1141,7 @@ static inline void xa_release(struct xarray *xa, unsigned long index) * doubled the number of slots per node, we'd get only 3 nodes per 4kB page. */ #ifndef XA_CHUNK_SHIFT -#define XA_CHUNK_SHIFT (CONFIG_BASE_SMALL ? 4 : 6) +#define XA_CHUNK_SHIFT (IS_ENABLED(CONFIG_BASE_SMALL) ? 4 : 6) #endif #define XA_CHUNK_SIZE (1UL << XA_CHUNK_SHIFT) #define XA_CHUNK_MASK (XA_CHUNK_SIZE - 1) diff --git a/init/Kconfig b/init/Kconfig index ad4b6f778d2bd..182f2671a49dd 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -743,7 +743,7 @@ config LOG_CPU_MAX_BUF_SHIFT int "CPU kernel log buffer size contribution (13 => 8 KB, 17 => 128KB)" depends on SMP range 0 21 - default 0 if BASE_SMALL != 0 + default 0 if BASE_SMALL default 12 depends on PRINTK help @@ -1950,9 +1950,7 @@ config RT_MUTEXES default y if PREEMPT_RT config BASE_SMALL - int - default 0 if BASE_FULL - default 1 if !BASE_FULL + def_bool !BASE_FULL config MODULE_SIG_FORMAT def_bool n diff --git a/kernel/futex/core.c b/kernel/futex/core.c index 1e78ef24321e8..06a1f091be81d 100644 --- a/kernel/futex/core.c +++ b/kernel/futex/core.c @@ -1150,7 +1150,7 @@ static int __init futex_init(void) unsigned int futex_shift; unsigned long i; -#if CONFIG_BASE_SMALL +#ifdef CONFIG_BASE_SMALL futex_hashsize = 16; #else futex_hashsize = roundup_pow_of_two(256 * num_possible_cpus()); diff --git a/kernel/user.c b/kernel/user.c index 03cedc366dc9e..aa1162deafe49 100644 --- a/kernel/user.c +++ b/kernel/user.c @@ -88,7 +88,7 @@ EXPORT_SYMBOL_GPL(init_user_ns); * when changing user ID's (ie setuid() and friends). */ -#define UIDHASH_BITS (CONFIG_BASE_SMALL ? 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Peter Anvin" , Ingo Molnar , Jiri Slaby , John Ogness , Josh Triplett , Masahiro Yamada , Matthew Wilcox , Peter Zijlstra , Petr Mladek , Sergey Senozhatsky , Steven Rostedt , Thomas Gleixner , Willem de Bruijn , Yoann Congal Subject: [PATCH v6 3/3] printk: Remove redundant CONFIG_BASE_FULL Date: Sun, 3 Mar 2024 22:46:52 +0100 Message-Id: <20240303214652.727140-4-yoann.congal@smile.fr> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240303214652.727140-1-yoann.congal@smile.fr> References: <20240303214652.727140-1-yoann.congal@smile.fr> Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 CONFIG_BASE_FULL is equivalent to !CONFIG_BASE_SMALL and is enabled by default: CONFIG_BASE_SMALL is the special case to take care of. So, remove CONFIG_BASE_FULL and move the config choice to CONFIG_BASE_SMALL (which defaults to 'n') For defconfigs explicitely disabling BASE_FULL, explicitely enable BASE_SMALL. For defconfigs explicitely enabling BASE_FULL, drop it as it is the default. Signed-off-by: Yoann Congal --- arch/arm/configs/collie_defconfig | 2 +- arch/arm/configs/keystone_defconfig | 2 +- arch/arm/configs/lpc18xx_defconfig | 2 +- arch/arm/configs/moxart_defconfig | 2 +- arch/arm/configs/mps2_defconfig | 2 +- arch/arm/configs/omap1_defconfig | 2 +- arch/arm/configs/stm32_defconfig | 2 +- arch/microblaze/configs/mmu_defconfig | 2 +- arch/mips/configs/rs90_defconfig | 2 +- arch/powerpc/configs/adder875_defconfig | 2 +- arch/powerpc/configs/ep88xc_defconfig | 2 +- arch/powerpc/configs/mpc866_ads_defconfig | 2 +- arch/powerpc/configs/mpc885_ads_defconfig | 2 +- arch/powerpc/configs/tqm8xx_defconfig | 2 +- arch/riscv/configs/nommu_k210_defconfig | 2 +- arch/riscv/configs/nommu_k210_sdcard_defconfig | 2 +- arch/riscv/configs/nommu_virt_defconfig | 2 +- arch/sh/configs/edosk7705_defconfig | 2 +- arch/sh/configs/se7619_defconfig | 2 +- arch/sh/configs/se7712_defconfig | 2 +- arch/sh/configs/se7721_defconfig | 2 +- arch/sh/configs/shmin_defconfig | 2 +- init/Kconfig | 10 +++------- tools/testing/selftests/wireguard/qemu/kernel.config | 1 - 24 files changed, 25 insertions(+), 30 deletions(-) diff --git a/arch/arm/configs/collie_defconfig b/arch/arm/configs/collie_defconfig index 01b5a5a73f037..42cb1c8541188 100644 --- a/arch/arm/configs/collie_defconfig +++ b/arch/arm/configs/collie_defconfig @@ -3,7 +3,7 @@ CONFIG_LOG_BUF_SHIFT=14 CONFIG_BLK_DEV_INITRD=y # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_EXPERT=y -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_EPOLL is not set CONFIG_ARCH_MULTI_V4=y # CONFIG_ARCH_MULTI_V7 is not set diff --git a/arch/arm/configs/keystone_defconfig b/arch/arm/configs/keystone_defconfig index 59c4835ffc977..c1291ca290b23 100644 --- a/arch/arm/configs/keystone_defconfig +++ b/arch/arm/configs/keystone_defconfig @@ -12,7 +12,7 @@ CONFIG_CGROUP_DEVICE=y CONFIG_CGROUP_CPUACCT=y CONFIG_BLK_DEV_INITRD=y # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y CONFIG_KALLSYMS_ALL=y CONFIG_EXPERT=y CONFIG_PROFILING=y diff --git a/arch/arm/configs/lpc18xx_defconfig b/arch/arm/configs/lpc18xx_defconfig index d169da9b2824d..f55c231e08708 100644 --- a/arch/arm/configs/lpc18xx_defconfig +++ b/arch/arm/configs/lpc18xx_defconfig @@ -8,7 +8,7 @@ CONFIG_BLK_DEV_INITRD=y # CONFIG_RD_LZ4 is not set CONFIG_CC_OPTIMIZE_FOR_SIZE=y # CONFIG_UID16 is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set diff --git a/arch/arm/configs/moxart_defconfig b/arch/arm/configs/moxart_defconfig index 1d41e73f4903c..34d079e03b3c5 100644 --- a/arch/arm/configs/moxart_defconfig +++ b/arch/arm/configs/moxart_defconfig @@ -6,7 +6,7 @@ CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_EXPERT=y # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_SIGNALFD is not set # CONFIG_TIMERFD is not set # CONFIG_EVENTFD is not set diff --git a/arch/arm/configs/mps2_defconfig b/arch/arm/configs/mps2_defconfig index 3ed73f184d839..e995e50537efd 100644 --- a/arch/arm/configs/mps2_defconfig +++ b/arch/arm/configs/mps2_defconfig @@ -5,7 +5,7 @@ CONFIG_LOG_BUF_SHIFT=16 CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_EXPERT=y # CONFIG_UID16 is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig index 729ea8157e2a5..025b595dd8375 100644 --- a/arch/arm/configs/omap1_defconfig +++ b/arch/arm/configs/omap1_defconfig @@ -9,7 +9,7 @@ CONFIG_LOG_BUF_SHIFT=14 CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_SHMEM is not set # CONFIG_KALLSYMS is not set CONFIG_PROFILING=y diff --git a/arch/arm/configs/stm32_defconfig b/arch/arm/configs/stm32_defconfig index b9fe3fbed5aec..3baec075d1efd 100644 --- a/arch/arm/configs/stm32_defconfig +++ b/arch/arm/configs/stm32_defconfig @@ -6,7 +6,7 @@ CONFIG_BLK_DEV_INITRD=y CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_EXPERT=y # CONFIG_UID16 is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig index 4da7bc4ac4a37..176314f3c9aac 100644 --- a/arch/microblaze/configs/mmu_defconfig +++ b/arch/microblaze/configs/mmu_defconfig @@ -4,7 +4,7 @@ CONFIG_AUDIT=y CONFIG_IKCONFIG=y CONFIG_IKCONFIG_PROC=y CONFIG_EXPERT=y -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y CONFIG_KALLSYMS_ALL=y CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1 CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1 diff --git a/arch/mips/configs/rs90_defconfig b/arch/mips/configs/rs90_defconfig index 4b9e36d6400e0..a53dd66e9b864 100644 --- a/arch/mips/configs/rs90_defconfig +++ b/arch/mips/configs/rs90_defconfig @@ -9,7 +9,7 @@ CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y # CONFIG_SGETMASK_SYSCALL is not set # CONFIG_SYSFS_SYSCALL is not set # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_TIMERFD is not set # CONFIG_AIO is not set # CONFIG_IO_URING is not set diff --git a/arch/powerpc/configs/adder875_defconfig b/arch/powerpc/configs/adder875_defconfig index 7f35d5bc12299..97f4d48517356 100644 --- a/arch/powerpc/configs/adder875_defconfig +++ b/arch/powerpc/configs/adder875_defconfig @@ -4,7 +4,7 @@ CONFIG_SYSVIPC=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_EXPERT=y # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_VM_EVENT_COUNTERS is not set # CONFIG_BLK_DEV_BSG is not set diff --git a/arch/powerpc/configs/ep88xc_defconfig b/arch/powerpc/configs/ep88xc_defconfig index a98ef6a4abef6..50cc59eb36cf1 100644 --- a/arch/powerpc/configs/ep88xc_defconfig +++ b/arch/powerpc/configs/ep88xc_defconfig @@ -6,7 +6,7 @@ CONFIG_HIGH_RES_TIMERS=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_EXPERT=y # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_VM_EVENT_COUNTERS is not set # CONFIG_BLK_DEV_BSG is not set diff --git a/arch/powerpc/configs/mpc866_ads_defconfig b/arch/powerpc/configs/mpc866_ads_defconfig index 5c56d36cdfc5c..6f449411abf7b 100644 --- a/arch/powerpc/configs/mpc866_ads_defconfig +++ b/arch/powerpc/configs/mpc866_ads_defconfig @@ -6,7 +6,7 @@ CONFIG_HIGH_RES_TIMERS=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_EXPERT=y # CONFIG_BUG is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_EPOLL is not set # CONFIG_VM_EVENT_COUNTERS is not set # CONFIG_BLK_DEV_BSG is not set diff --git a/arch/powerpc/configs/mpc885_ads_defconfig b/arch/powerpc/configs/mpc885_ads_defconfig index 56b876e418e91..77306be62e9ee 100644 --- a/arch/powerpc/configs/mpc885_ads_defconfig +++ b/arch/powerpc/configs/mpc885_ads_defconfig @@ -7,7 +7,7 @@ CONFIG_VIRT_CPU_ACCOUNTING_NATIVE=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_EXPERT=y # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set CONFIG_PERF_EVENTS=y # CONFIG_VM_EVENT_COUNTERS is not set diff --git a/arch/powerpc/configs/tqm8xx_defconfig b/arch/powerpc/configs/tqm8xx_defconfig index 083c2e57520a0..383c0966e92fd 100644 --- a/arch/powerpc/configs/tqm8xx_defconfig +++ b/arch/powerpc/configs/tqm8xx_defconfig @@ -6,7 +6,7 @@ CONFIG_HIGH_RES_TIMERS=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_EXPERT=y # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_VM_EVENT_COUNTERS is not set CONFIG_MODULES=y diff --git a/arch/riscv/configs/nommu_k210_defconfig b/arch/riscv/configs/nommu_k210_defconfig index 146c46d0525b4..51ba0d1683383 100644 --- a/arch/riscv/configs/nommu_k210_defconfig +++ b/arch/riscv/configs/nommu_k210_defconfig @@ -11,7 +11,7 @@ CONFIG_BLK_DEV_INITRD=y CONFIG_CC_OPTIMIZE_FOR_SIZE=y # CONFIG_SYSFS_SYSCALL is not set # CONFIG_FHANDLE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set diff --git a/arch/riscv/configs/nommu_k210_sdcard_defconfig b/arch/riscv/configs/nommu_k210_sdcard_defconfig index 95d8d1808f194..762aea9127ae4 100644 --- a/arch/riscv/configs/nommu_k210_sdcard_defconfig +++ b/arch/riscv/configs/nommu_k210_sdcard_defconfig @@ -3,7 +3,7 @@ CONFIG_LOG_BUF_SHIFT=13 CONFIG_CC_OPTIMIZE_FOR_SIZE=y # CONFIG_SYSFS_SYSCALL is not set # CONFIG_FHANDLE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set diff --git a/arch/riscv/configs/nommu_virt_defconfig b/arch/riscv/configs/nommu_virt_defconfig index b794e2f8144e6..ab6d618c1828f 100644 --- a/arch/riscv/configs/nommu_virt_defconfig +++ b/arch/riscv/configs/nommu_virt_defconfig @@ -10,7 +10,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y CONFIG_EXPERT=y # CONFIG_SYSFS_SYSCALL is not set # CONFIG_FHANDLE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set # CONFIG_TIMERFD is not set diff --git a/arch/sh/configs/edosk7705_defconfig b/arch/sh/configs/edosk7705_defconfig index 9ee35269bee26..ab3bf72264df4 100644 --- a/arch/sh/configs/edosk7705_defconfig +++ b/arch/sh/configs/edosk7705_defconfig @@ -6,7 +6,7 @@ # CONFIG_PRINTK is not set # CONFIG_BUG is not set # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SIGNALFD is not set diff --git a/arch/sh/configs/se7619_defconfig b/arch/sh/configs/se7619_defconfig index 14d0f5ead502f..4765966fec99c 100644 --- a/arch/sh/configs/se7619_defconfig +++ b/arch/sh/configs/se7619_defconfig @@ -4,7 +4,7 @@ CONFIG_LOG_BUF_SHIFT=14 # CONFIG_KALLSYMS is not set # CONFIG_HOTPLUG is not set # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_VM_EVENT_COUNTERS is not set diff --git a/arch/sh/configs/se7712_defconfig b/arch/sh/configs/se7712_defconfig index dc854293da435..20f07aee5bde7 100644 --- a/arch/sh/configs/se7712_defconfig +++ b/arch/sh/configs/se7712_defconfig @@ -7,7 +7,7 @@ CONFIG_LOG_BUF_SHIFT=14 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_KALLSYMS_ALL=y # CONFIG_BUG is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_SHMEM is not set CONFIG_MODULES=y # CONFIG_BLK_DEV_BSG is not set diff --git a/arch/sh/configs/se7721_defconfig b/arch/sh/configs/se7721_defconfig index c891945b8a900..00862d3c030d2 100644 --- a/arch/sh/configs/se7721_defconfig +++ b/arch/sh/configs/se7721_defconfig @@ -7,7 +7,7 @@ CONFIG_LOG_BUF_SHIFT=14 # CONFIG_CC_OPTIMIZE_FOR_SIZE is not set CONFIG_KALLSYMS_ALL=y # CONFIG_BUG is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_SHMEM is not set CONFIG_MODULES=y # CONFIG_BLK_DEV_BSG is not set diff --git a/arch/sh/configs/shmin_defconfig b/arch/sh/configs/shmin_defconfig index e078b193a78a8..bfeb004f130ec 100644 --- a/arch/sh/configs/shmin_defconfig +++ b/arch/sh/configs/shmin_defconfig @@ -5,7 +5,7 @@ CONFIG_LOG_BUF_SHIFT=14 # CONFIG_HOTPLUG is not set # CONFIG_BUG is not set # CONFIG_ELF_CORE is not set -# CONFIG_BASE_FULL is not set +CONFIG_BASE_SMALL=y # CONFIG_FUTEX is not set # CONFIG_EPOLL is not set # CONFIG_SHMEM is not set diff --git a/init/Kconfig b/init/Kconfig index 182f2671a49dd..2a8203628d212 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -1590,11 +1590,10 @@ config PCSPKR_PLATFORM This option allows to disable the internal PC-Speaker support, saving some memory. -config BASE_FULL - default y - bool "Enable full-sized data structures for core" if EXPERT +config BASE_SMALL + bool "Enable smaller-sized data structures for core" if EXPERT help - Disabling this option reduces the size of miscellaneous core + Enabling this option reduces the size of miscellaneous core kernel data structures. This saves memory on small machines, but may reduce performance. @@ -1949,9 +1948,6 @@ config RT_MUTEXES bool default y if PREEMPT_RT -config BASE_SMALL - def_bool !BASE_FULL - config MODULE_SIG_FORMAT def_bool n select SYSTEM_DATA_VERIFICATION diff --git a/tools/testing/selftests/wireguard/qemu/kernel.config b/tools/testing/selftests/wireguard/qemu/kernel.config index 507555714b1d8..f314d3789f175 100644 --- a/tools/testing/selftests/wireguard/qemu/kernel.config +++ b/tools/testing/selftests/wireguard/qemu/kernel.config @@ -41,7 +41,6 @@ CONFIG_KALLSYMS=y CONFIG_BUG=y CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y CONFIG_JUMP_LABEL=y -CONFIG_BASE_FULL=y CONFIG_FUTEX=y CONFIG_SHMEM=y CONFIG_SLUB=y