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Message-ID: <1c39c9b0-ec37-f910-2b09-cedf7acf6e91@suse.cz>
Date: Tue, 27 Jun 2023 09:37:55 +0200
From: Vlastimil Babka <vbabka@...e.cz>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: David Rientjes <rientjes@...gle.com>,
Joonsoo Kim <iamjoonsoo.kim@....com>,
Christoph Lameter <cl@...ux.com>,
Pekka Enberg <penberg@...nel.org>,
Andrew Morton <akpm@...ux-foundation.org>,
"linux-mm@...ck.org" <linux-mm@...ck.org>,
LKML <linux-kernel@...r.kernel.org>, patches@...ts.linux.dev,
Roman Gushchin <roman.gushchin@...ux.dev>,
Hyeonggon Yoo <42.hyeyoo@...il.com>,
Jesper Dangaard Brouer <brouer@...hat.com>,
David Sterba <dsterba@...e.com>
Subject: [GIT PULL] slab updates for 6.5
Hi Linus,
please pull the latest slab updates from:
git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git tags/slab-for-6.5
the changes are summarized below. There will be a (not completely trivial) conflict
with the mm tree. Stephen's resolution [1] is ok; I would personally move the flags
SLAB_NO_MERGE modification hunk above the minalign hunk for better logical separation,
but correctness wise there's no difference.
[1] https://lore.kernel.org/all/20230619140330.28437ac3@canb.auug.org.au/T/#u
======================================
* SLAB deprecation
Following the discussion at LSF/MM 2023 [1] and no objections, the SLAB
allocator is deprecated by renaming the config option (to make its users
notice) to CONFIG_SLAB_DEPRECATED with updated help text. SLUB should be
used instead. Existing defconfigs with CONFIG_SLAB are also updated.
* SLAB_NO_MERGE kmem_cache flag, by Jesper Dangaard Brouer
There are (very limited) cases where kmem_cache merging is undesirable, and
existing ways to prevent it are hacky. Introduce a new flag to do that
cleanly and convert the existing hacky users. Btrfs plans to use this for
debug kernel builds (that use case is always fine), networking for
performance reasons (that should be very rare).
* Replace the usage of weak PRNGs, by David Keisar Schmidt
In addition to using stronger RNGs for the security related features, the
code is a bit cleaner.
* Misc code cleanups, by SeongJae Parki, Xiongwei Song, Zhen Lei, and
zhaoxinchao.
[1] https://lwn.net/Articles/932201/
----------------------------------------------------------------
David Keisar Schmidt (2):
mm/slab: Replace invocation of weak PRNG
mm/slab_common: Replace invocation of weak PRNG
Jesper Dangaard Brouer (1):
mm/slab: introduce kmem_cache flag SLAB_NO_MERGE
SeongJae Park (2):
mm/slab: add a missing semicolon on SLAB_TYPESAFE_BY_RCU example code
mm/slab: break up RCU readers on SLAB_TYPESAFE_BY_RCU example code
Vlastimil Babka (4):
mm/slab: remove HAVE_HARDENED_USERCOPY_ALLOCATOR
mm/slab: rename CONFIG_SLAB to CONFIG_SLAB_DEPRECATED
mm/slab_common: use SLAB_NO_MERGE instead of negative refcount
Merge branches 'slab/for-6.5/prandom', 'slab/for-6.5/slab_no_merge' and 'slab/for-6.5/slab-deprecate' into slab/for-next
Xiongwei Song (5):
slub: Correct the error code when slab_kset is NULL
slub: Put objects_show() into CONFIG_SLUB_DEBUG enabled block
slub: Remove CONFIG_SMP defined check
slub: Remove slabs_node() function
slub: Don't read nr_slabs and total_objects directly
Zhen Lei (1):
mm/slab_common: reduce an if statement in create_cache()
zhaoxinchao (1):
mm/slab: correct return values in comment for _kmem_cache_create()
arch/arc/configs/axs103_smp_defconfig | 1 -
arch/arc/configs/haps_hs_defconfig | 1 -
arch/arc/configs/haps_hs_smp_defconfig | 1 -
arch/arc/configs/hsdk_defconfig | 1 -
arch/arc/configs/tb10x_defconfig | 1 -
arch/arm/configs/am200epdkit_defconfig | 1 -
arch/arm/configs/at91_dt_defconfig | 1 -
arch/arm/configs/dove_defconfig | 1 -
arch/arm/configs/ep93xx_defconfig | 1 -
arch/arm/configs/imx_v4_v5_defconfig | 1 -
arch/arm/configs/lpc32xx_defconfig | 1 -
arch/arm/configs/mmp2_defconfig | 1 -
arch/arm/configs/mvebu_v7_defconfig | 1 -
arch/arm/configs/nhk8815_defconfig | 1 -
arch/arm/configs/omap2plus_defconfig | 1 -
arch/arm/configs/pxa168_defconfig | 1 -
arch/arm/configs/pxa3xx_defconfig | 1 -
arch/arm/configs/pxa910_defconfig | 1 -
arch/arm/configs/realview_defconfig | 1 -
arch/arm/configs/rpc_defconfig | 1 -
arch/arm/configs/sama5_defconfig | 1 -
arch/arm/configs/sama7_defconfig | 1 -
arch/arm/configs/shmobile_defconfig | 1 -
arch/arm/configs/sp7021_defconfig | 1 -
arch/arm/configs/tegra_defconfig | 1 -
arch/arm/configs/versatile_defconfig | 1 -
arch/m68k/configs/amiga_defconfig | 1 -
arch/m68k/configs/apollo_defconfig | 1 -
arch/m68k/configs/atari_defconfig | 1 -
arch/m68k/configs/bvme6000_defconfig | 1 -
arch/m68k/configs/hp300_defconfig | 1 -
arch/m68k/configs/mac_defconfig | 1 -
arch/m68k/configs/multi_defconfig | 1 -
arch/m68k/configs/mvme147_defconfig | 1 -
arch/m68k/configs/mvme16x_defconfig | 1 -
arch/m68k/configs/q40_defconfig | 1 -
arch/m68k/configs/sun3_defconfig | 1 -
arch/m68k/configs/sun3x_defconfig | 1 -
arch/microblaze/configs/mmu_defconfig | 1 -
arch/mips/configs/ar7_defconfig | 1 -
arch/mips/configs/bcm47xx_defconfig | 1 -
arch/mips/configs/bigsur_defconfig | 1 -
arch/mips/configs/cavium_octeon_defconfig | 1 -
arch/mips/configs/ci20_defconfig | 1 -
arch/mips/configs/cu1000-neo_defconfig | 1 -
arch/mips/configs/cu1830-neo_defconfig | 1 -
arch/mips/configs/db1xxx_defconfig | 1 -
arch/mips/configs/decstation_64_defconfig | 1 -
arch/mips/configs/decstation_defconfig | 1 -
arch/mips/configs/decstation_r4k_defconfig | 1 -
arch/mips/configs/fuloong2e_defconfig | 1 -
arch/mips/configs/gpr_defconfig | 1 -
arch/mips/configs/ip22_defconfig | 1 -
arch/mips/configs/ip27_defconfig | 1 -
arch/mips/configs/ip28_defconfig | 1 -
arch/mips/configs/ip32_defconfig | 1 -
arch/mips/configs/jazz_defconfig | 1 -
arch/mips/configs/malta_defconfig | 1 -
arch/mips/configs/malta_kvm_defconfig | 1 -
arch/mips/configs/malta_qemu_32r6_defconfig | 1 -
arch/mips/configs/maltaaprp_defconfig | 1 -
arch/mips/configs/maltasmvp_defconfig | 1 -
arch/mips/configs/maltasmvp_eva_defconfig | 1 -
arch/mips/configs/maltaup_defconfig | 1 -
arch/mips/configs/maltaup_xpa_defconfig | 1 -
arch/mips/configs/mtx1_defconfig | 1 -
arch/mips/configs/pic32mzda_defconfig | 1 -
arch/mips/configs/qi_lb60_defconfig | 1 -
arch/mips/configs/rb532_defconfig | 1 -
arch/mips/configs/rbtx49xx_defconfig | 1 -
arch/mips/configs/rm200_defconfig | 1 -
arch/mips/configs/rs90_defconfig | 1 -
arch/mips/configs/sb1250_swarm_defconfig | 1 -
arch/nios2/configs/10m50_defconfig | 1 -
arch/nios2/configs/3c120_defconfig | 1 -
arch/parisc/configs/generic-32bit_defconfig | 1 -
arch/powerpc/configs/40x/klondike_defconfig | 1 -
arch/powerpc/configs/52xx/pcm030_defconfig | 1 -
arch/powerpc/configs/83xx/kmeter1_defconfig | 1 -
arch/powerpc/configs/83xx/mpc837x_rdb_defconfig | 1 -
arch/powerpc/configs/85xx/ge_imp3a_defconfig | 1 -
arch/powerpc/configs/ep8248e_defconfig | 1 -
arch/powerpc/configs/gamecube_defconfig | 1 -
arch/powerpc/configs/mgcoge_defconfig | 1 -
arch/powerpc/configs/mpc512x_defconfig | 1 -
arch/powerpc/configs/mpc83xx_defconfig | 1 -
arch/powerpc/configs/ps3_defconfig | 1 -
arch/powerpc/configs/wii_defconfig | 1 -
arch/sh/configs/ap325rxa_defconfig | 1 -
arch/sh/configs/apsh4a3a_defconfig | 1 -
arch/sh/configs/apsh4ad0a_defconfig | 1 -
arch/sh/configs/dreamcast_defconfig | 1 -
arch/sh/configs/ecovec24-romimage_defconfig | 1 -
arch/sh/configs/ecovec24_defconfig | 1 -
arch/sh/configs/espt_defconfig | 1 -
arch/sh/configs/hp6xx_defconfig | 1 -
arch/sh/configs/kfr2r09-romimage_defconfig | 1 -
arch/sh/configs/kfr2r09_defconfig | 1 -
arch/sh/configs/landisk_defconfig | 1 -
arch/sh/configs/lboxre2_defconfig | 1 -
arch/sh/configs/magicpanelr2_defconfig | 1 -
arch/sh/configs/microdev_defconfig | 1 -
arch/sh/configs/migor_defconfig | 1 -
arch/sh/configs/polaris_defconfig | 1 -
arch/sh/configs/r7780mp_defconfig | 1 -
arch/sh/configs/r7785rp_defconfig | 1 -
arch/sh/configs/rsk7264_defconfig | 1 -
arch/sh/configs/rsk7269_defconfig | 1 -
arch/sh/configs/rts7751r2d1_defconfig | 1 -
arch/sh/configs/rts7751r2dplus_defconfig | 1 -
arch/sh/configs/sdk7786_defconfig | 1 -
arch/sh/configs/se7343_defconfig | 1 -
arch/sh/configs/se7619_defconfig | 1 -
arch/sh/configs/se7705_defconfig | 1 -
arch/sh/configs/se7712_defconfig | 1 -
arch/sh/configs/se7721_defconfig | 1 -
arch/sh/configs/se7724_defconfig | 1 -
arch/sh/configs/se7750_defconfig | 1 -
arch/sh/configs/se7751_defconfig | 1 -
arch/sh/configs/se7780_defconfig | 1 -
arch/sh/configs/secureedge5410_defconfig | 1 -
arch/sh/configs/sh03_defconfig | 1 -
arch/sh/configs/sh2007_defconfig | 1 -
arch/sh/configs/sh7710voipgw_defconfig | 1 -
arch/sh/configs/sh7757lcr_defconfig | 1 -
arch/sh/configs/sh7763rdp_defconfig | 1 -
arch/sh/configs/sh7785lcr_32bit_defconfig | 1 -
arch/sh/configs/sh7785lcr_defconfig | 1 -
arch/sh/configs/titan_defconfig | 1 -
arch/sh/configs/urquell_defconfig | 1 -
arch/sparc/configs/sparc32_defconfig | 1 -
arch/sparc/configs/sparc64_defconfig | 1 -
arch/um/configs/i386_defconfig | 1 -
arch/um/configs/x86_64_defconfig | 1 -
include/linux/slab.h | 22 +++++++++---
kernel/configs/tiny.config | 1 -
mm/Kconfig | 18 +++++++---
mm/kfence/kfence_test.c | 7 ++--
mm/slab.c | 37 ++++++-------------
mm/slab.h | 13 ++-----
mm/slab_common.c | 31 +++++++---------
mm/slub.c | 47 ++++++++++---------------
security/Kconfig | 8 -----
143 files changed, 79 insertions(+), 239 deletions(-)
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