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Fri, 10 Mar 2023 10:32:14 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id aJWPEy4HC2SsXQAAMHmgww (envelope-from ); Fri, 10 Mar 2023 10:32:14 +0000 From: Vlastimil Babka To: Christoph Lameter , David Rientjes , Joonsoo Kim , Pekka Enberg Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>, Roman Gushchin , Andrew Morton , linux-mm@kvack.org, rcu@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, patches@lists.linux.dev, netdev@vger.kernel.org, linux-doc@vger.kernel.org, Vlastimil Babka Subject: [PATCH 1/7] mm/slob: remove CONFIG_SLOB Date: Fri, 10 Mar 2023 11:32:03 +0100 Message-Id: <20230310103210.22372-2-vbabka@suse.cz> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230310103210.22372-1-vbabka@suse.cz> References: <20230310103210.22372-1-vbabka@suse.cz> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspam-User: X-Rspamd-Server: rspam02 X-Rspamd-Queue-Id: F215A1A0003 X-Stat-Signature: pxnkjcp3syszdmqncwg6pso96thgy17d X-HE-Tag: 1678444335-848218 X-HE-Meta: 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 Io6zsFU/ fdnRkB7381KVgJwh46yd/Jnhn2A4z9ZNyA+4OqY4rw4EhS6f541kyzBazKn6JDieRtsMUz4hqjpNk4b3y4H/w55XnX9IehQHmDMPv4zC4o2ZVBznMEfJ47Op1Dwjb6fw0mmD6AWblpM6WkkzoGLkmqWy/xCuDy1rESFwUIgEKkT2d1mnjLod/RpJKur35uCQ1TOPRguZUzAuUjtUBiRYbzR2I5rsKe+avXyQ41T3/BH/VB89s9CT9y38yCm91bGETb7jgsSBSzbg4J8QnfeOF+FCMLtH4e53x3c3mXHeEdTZbDSEQ00JkYxgxg/aIVIEY6Bws8a99nWnYHbAsvP0Plk8Mj/Ka/4o7FPmYMUijZ/JIdILwB9TLqxFCHJFTMBYvvIOdFcgyBkoAG4ixamiqcA7D3Q== X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Remove SLOB from Kconfig and Makefile. Everything under #ifdef CONFIG_SLOB, and mm/slob.c is now dead code. Signed-off-by: Vlastimil Babka --- init/Kconfig | 2 +- kernel/configs/tiny.config | 1 - mm/Kconfig | 22 ---------------------- mm/Makefile | 1 - 4 files changed, 1 insertion(+), 25 deletions(-) diff --git a/init/Kconfig b/init/Kconfig index 1fb5f313d18f..72ac3f66bc27 100644 --- a/init/Kconfig +++ b/init/Kconfig @@ -973,7 +973,7 @@ config MEMCG config MEMCG_KMEM bool - depends on MEMCG && !SLOB + depends on MEMCG default y config BLK_CGROUP diff --git a/kernel/configs/tiny.config b/kernel/configs/tiny.config index c2f9c912df1c..144b2bd86b14 100644 --- a/kernel/configs/tiny.config +++ b/kernel/configs/tiny.config @@ -7,6 +7,5 @@ CONFIG_KERNEL_XZ=y # CONFIG_KERNEL_LZO is not set # CONFIG_KERNEL_LZ4 is not set # CONFIG_SLAB is not set -# CONFIG_SLOB_DEPRECATED is not set CONFIG_SLUB=y CONFIG_SLUB_TINY=y diff --git a/mm/Kconfig b/mm/Kconfig index 4751031f3f05..669399ab693c 100644 --- a/mm/Kconfig +++ b/mm/Kconfig @@ -238,30 +238,8 @@ config SLUB and has enhanced diagnostics. SLUB is the default choice for a slab allocator. -config SLOB_DEPRECATED - depends on EXPERT - bool "SLOB (Simple Allocator - DEPRECATED)" - depends on !PREEMPT_RT - help - Deprecated and scheduled for removal in a few cycles. SLUB - recommended as replacement. CONFIG_SLUB_TINY can be considered - on systems with 16MB or less RAM. - - If you need SLOB to stay, please contact linux-mm@kvack.org and - people listed in the SLAB ALLOCATOR section of MAINTAINERS file, - with your use case. - - SLOB replaces the stock allocator with a drastically simpler - allocator. SLOB is generally more space efficient but - does not perform as well on large systems. - endchoice -config SLOB - bool - default y - depends on SLOB_DEPRECATED - config SLUB_TINY bool "Configure SLUB for minimal memory footprint" depends on SLUB && EXPERT diff --git a/mm/Makefile b/mm/Makefile index 8e105e5b3e29..2d9c1e7f6085 100644 --- a/mm/Makefile +++ b/mm/Makefile @@ -81,7 +81,6 @@ obj-$(CONFIG_HUGETLB_PAGE_OPTIMIZE_VMEMMAP) += hugetlb_vmemmap.o obj-$(CONFIG_NUMA) += mempolicy.o obj-$(CONFIG_SPARSEMEM) += sparse.o obj-$(CONFIG_SPARSEMEM_VMEMMAP) += sparse-vmemmap.o -obj-$(CONFIG_SLOB) += slob.o obj-$(CONFIG_MMU_NOTIFIER) += mmu_notifier.o obj-$(CONFIG_KSM) += ksm.o obj-$(CONFIG_PAGE_POISONING) += page_poison.o -- 2.39.2