From: Vlastimil Babka <vbabka@suse.cz>
To: Christoph Lameter <cl@linux.com>,
David Rientjes <rientjes@google.com>,
Joonsoo Kim <iamjoonsoo.kim@lge.com>,
Pekka Enberg <penberg@kernel.org>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>,
Roman Gushchin <roman.gushchin@linux.dev>,
Andrew Morton <akpm@linux-foundation.org>,
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 <vbabka@suse.cz>
Subject: [PATCH 1/7] mm/slob: remove CONFIG_SLOB
Date: Fri, 10 Mar 2023 11:32:03 +0100 [thread overview]
Message-ID: <20230310103210.22372-2-vbabka@suse.cz> (raw)
In-Reply-To: <20230310103210.22372-1-vbabka@suse.cz>
Remove SLOB from Kconfig and Makefile. Everything under #ifdef
CONFIG_SLOB, and mm/slob.c is now dead code.
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
---
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
next prev parent reply other threads:[~2023-03-10 10:32 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-10 10:32 [PATCH 0/7] remove SLOB and allow kfree() with kmem_cache_alloc() Vlastimil Babka
2023-03-10 10:32 ` Vlastimil Babka [this message]
2023-03-14 7:18 ` [PATCH 1/7] mm/slob: remove CONFIG_SLOB Hyeonggon Yoo
2023-03-14 22:11 ` Lorenzo Stoakes
2023-03-10 10:32 ` [PATCH 2/7] net: skbuff: remove SLOB-specific ifdefs Vlastimil Babka
2023-03-10 10:32 ` [PATCH 3/7] mm, page_flags: remove PG_slob_free Vlastimil Babka
2023-03-14 7:25 ` Hyeonggon Yoo
2023-03-14 22:12 ` Lorenzo Stoakes
2023-03-10 10:32 ` [PATCH 4/7] mm, pagemap: remove SLOB and SLQB from comments and documentation Vlastimil Babka
2023-03-14 8:19 ` Hyeonggon Yoo
2023-03-15 11:05 ` Vlastimil Babka
2023-03-14 22:16 ` Lorenzo Stoakes
2023-03-10 10:32 ` [PATCH 5/7] mm/slab: remove CONFIG_SLOB code from slab common code Vlastimil Babka
2023-03-14 9:28 ` Hyeonggon Yoo
2023-03-14 22:16 ` Lorenzo Stoakes
2023-03-10 10:32 ` [PATCH 6/7] mm/slob: remove slob.c Vlastimil Babka
2023-03-14 9:34 ` Hyeonggon Yoo
2023-03-14 22:18 ` Lorenzo Stoakes
2023-03-15 2:54 ` Roman Gushchin
2023-03-10 10:32 ` [PATCH 7/7] mm/slab: document kfree() as allowed for kmem_cache_alloc() objects Vlastimil Babka
2023-03-12 9:59 ` Mike Rapoport
2023-03-15 13:38 ` Vlastimil Babka
2023-03-15 14:50 ` Mike Rapoport
2023-03-11 1:00 ` [PATCH 0/7] remove SLOB and allow kfree() with kmem_cache_alloc() Jakub Kicinski
2023-03-12 9:51 ` Mike Rapoport
2023-03-13 16:31 ` Steven Rostedt
2023-03-13 18:00 ` Mike Rapoport
2023-03-15 13:53 ` Vlastimil Babka
2023-03-15 14:20 ` Steven Rostedt
2023-03-15 14:22 ` Vlastimil Babka
2023-03-13 16:36 ` Vlastimil Babka
2023-03-14 22:10 ` Lorenzo Stoakes
2023-03-15 13:40 ` Vlastimil Babka
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