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Mon, 16 Feb 2026 16:50:53 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id 2RblGu1Kk2lVPQAAD6G6ig (envelope-from ); Mon, 16 Feb 2026 16:50:53 +0000 Message-ID: <0c8f9910-1b4f-4a8c-846e-397f328662ae@suse.cz> Date: Mon, 16 Feb 2026 17:50:51 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird From: Vlastimil Babka Subject: [GIT PULL] slab updates for 7.0 part 2 To: Linus Torvalds Cc: Andrew Morton , Harry Yoo , David Rientjes , Christoph Lameter , Roman Gushchin , "linux-mm@kvack.org" , LKML , Hao Li , Alexei Starovoitov Content-Language: en-US Autocrypt: addr=vbabka@suse.cz; keydata= xsFNBFZdmxYBEADsw/SiUSjB0dM+vSh95UkgcHjzEVBlby/Fg+g42O7LAEkCYXi/vvq31JTB KxRWDHX0R2tgpFDXHnzZcQywawu8eSq0LxzxFNYMvtB7sV1pxYwej2qx9B75qW2plBs+7+YB 87tMFA+u+L4Z5xAzIimfLD5EKC56kJ1CsXlM8S/LHcmdD9Ctkn3trYDNnat0eoAcfPIP2OZ+ 9oe9IF/R28zmh0ifLXyJQQz5ofdj4bPf8ecEW0rhcqHfTD8k4yK0xxt3xW+6Exqp9n9bydiy tcSAw/TahjW6yrA+6JhSBv1v2tIm+itQc073zjSX8OFL51qQVzRFr7H2UQG33lw2QrvHRXqD Ot7ViKam7v0Ho9wEWiQOOZlHItOOXFphWb2yq3nzrKe45oWoSgkxKb97MVsQ+q2SYjJRBBH4 8qKhphADYxkIP6yut/eaj9ImvRUZZRi0DTc8xfnvHGTjKbJzC2xpFcY0DQbZzuwsIZ8OPJCc LM4S7mT25NE5kUTG/TKQCk922vRdGVMoLA7dIQrgXnRXtyT61sg8PG4wcfOnuWf8577aXP1x 6mzw3/jh3F+oSBHb/GcLC7mvWreJifUL2gEdssGfXhGWBo6zLS3qhgtwjay0Jl+kza1lo+Cv BB2T79D4WGdDuVa4eOrQ02TxqGN7G0Biz5ZLRSFzQSQwLn8fbwARAQABzSBWbGFzdGltaWwg QmFia2EgPHZiYWJrYUBzdXNlLmN6PsLBlAQTAQoAPgIbAwULCQgHAwUVCgkICwUWAgMBAAIe AQIXgBYhBKlA1DSZLC6OmRA9UCJPp+fMgqZkBQJnyBr8BQka0IFQAAoJECJPp+fMgqZkqmMQ AIbGN95ptUMUvo6aAdhxaOCHXp1DfIBuIOK/zpx8ylY4pOwu3GRe4dQ8u4XS9gaZ96Gj4bC+ jwWcSmn+TjtKW3rH1dRKopvC07tSJIGGVyw7ieV/5cbFffA8NL0ILowzVg8w1ipnz1VTkWDr 2zcfslxJsJ6vhXw5/npcY0ldeC1E8f6UUoa4eyoskd70vO0wOAoGd02ZkJoox3F5ODM0kjHu Y97VLOa3GG66lh+ZEelVZEujHfKceCw9G3PMvEzyLFbXvSOigZQMdKzQ8D/OChwqig8wFBmV QCPS4yDdmZP3oeDHRjJ9jvMUKoYODiNKsl2F+xXwyRM2qoKRqFlhCn4usVd1+wmv9iLV8nPs 2Db1ZIa49fJet3Sk3PN4bV1rAPuWvtbuTBN39Q/6MgkLTYHb84HyFKw14Rqe5YorrBLbF3rl M51Dpf6Egu1yTJDHCTEwePWug4XI11FT8lK0LNnHNpbhTCYRjX73iWOnFraJNcURld1jL1nV r/LRD+/e2gNtSTPK0Qkon6HcOBZnxRoqtazTU6YQRmGlT0v+rukj/cn5sToYibWLn+RoV1CE Qj6tApOiHBkpEsCzHGu+iDQ1WT0Idtdynst738f/uCeCMkdRu4WMZjteQaqvARFwCy3P/jpK uvzMtves5HvZw33ZwOtMCgbpce00DaET4y/UzsBNBFsZNTUBCACfQfpSsWJZyi+SHoRdVyX5 J6rI7okc4+b571a7RXD5UhS9dlVRVVAtrU9ANSLqPTQKGVxHrqD39XSw8hxK61pw8p90pg4G /N3iuWEvyt+t0SxDDkClnGsDyRhlUyEWYFEoBrrCizbmahOUwqkJbNMfzj5Y7n7OIJOxNRkB IBOjPdF26dMP69BwePQao1M8Acrrex9sAHYjQGyVmReRjVEtv9iG4DoTsnIR3amKVk6si4Ea X/mrapJqSCcBUVYUFH8M7bsm4CSxier5ofy8jTEa/CfvkqpKThTMCQPNZKY7hke5qEq1CBk2 wxhX48ZrJEFf1v3NuV3OimgsF2odzieNABEBAAHCwXwEGAEKACYCGwwWIQSpQNQ0mSwujpkQ PVAiT6fnzIKmZAUCZ8gcVAUJFhTonwAKCRAiT6fnzIKmZLY8D/9uo3Ut9yi2YCuASWxr7QQZ lJCViArjymbxYB5NdOeC50/0gnhK4pgdHlE2MdwF6o34x7TPFGpjNFvycZqccSQPJ/gibwNA zx3q9vJT4Vw+YbiyS53iSBLXMweeVV1Jd9IjAoL+EqB0cbxoFXvnjkvP1foiiF5r73jCd4PR rD+GoX5BZ7AZmFYmuJYBm28STM2NA6LhT0X+2su16f/HtummENKcMwom0hNu3MBNPUOrujtW khQrWcJNAAsy4yMoJ2Lw51T/5X5Hc7jQ9da9fyqu+phqlVtn70qpPvgWy4HRhr25fCAEXZDp xG4RNmTm+pqorHOqhBkI7wA7P/nyPo7ZEc3L+ZkQ37u0nlOyrjbNUniPGxPxv1imVq8IyycG AN5FaFxtiELK22gvudghLJaDiRBhn8/AhXc642/Z/yIpizE2xG4KU4AXzb6C+o7LX/WmmsWP Ly6jamSg6tvrdo4/e87lUedEqCtrp2o1xpn5zongf6cQkaLZKQcBQnPmgHO5OG8+50u88D9I rywqgzTUhHFKKF6/9L/lYtrNcHU8Z6Y4Ju/MLUiNYkmtrGIMnkjKCiRqlRrZE/v5YFHbayRD dJKXobXTtCBYpLJM4ZYRpGZXne/FAtWNe4KbNJJqxMvrTOrnIatPj8NhBVI0RSJRsbilh6TE m6M14QORSWTLRg== Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-Rspamd-Queue-Id: 4F7CF14000D X-Stat-Signature: 4merq64au1df9ipqt35xfa1hq1zium1p X-Rspam-User: X-Rspamd-Server: rspam02 X-HE-Tag: 1771260655-662202 X-HE-Meta: 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 8TJSDW3r Hpz7x 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: List-Subscribe: List-Unsubscribe: Hi Linus, please pull the latest slab updates from: git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git tags/slab-for-7.0-part2 There are two stable fixes for kmalloc_nolock() corner cases. The other two patches are lifting a significant limitation of kmalloc_nolock() so that kfree_rcu() can be used with it, and will allow bpf to start using this [1]. However they only went to -next a week ago so I want to be clear about it, as I know it should have been there earlier for a non-strictly-fix changes. [1] https://lore.kernel.org/all/CAADnVQ%2Bq3QPqNdV3MuysQJQgxSS4g6CV%2BVzN2%3DUqCPHw7xq%3DSQ@mail.gmail.com/ Thanks, Vlastimil ====================================== - Two stable fixes for kmalloc_nolock() usage from NMI context (Harry Yoo) - Allow kmalloc_nolock() allocations to be freed with kfree() and thus also kfree_rcu() and simplify slabobj_ext handling - we no longer need to track how it was allocated to use the matching freeing function (Harry Yoo) ---------------------------------------------------------------- The following changes since commit 815c8e35511d0b9a214e9f644983fe477af9d5cb: Merge branch 'slab/for-7.0/sheaves' into slab/for-next (2026-02-10 09:10:00 +0100) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab.git tags/slab-for-7.0-part2 for you to fetch changes up to 27125df9a5d3b4cfd03bce3a8ec405a368cc9aae: mm/slab: drop the OBJEXTS_NOSPIN_ALLOC flag from enum objext_flags (2026-02-10 11:39:30 +0100) ---------------------------------------------------------------- slab updates for 7.0 part2 ---------------------------------------------------------------- Harry Yoo (4): mm/slab: do not access current->mems_allowed_seq if !allow_spin mm/slab: use prandom if !allow_spin mm/slab: allow freeing kmalloc_nolock()'d objects using kfree[_rcu]() mm/slab: drop the OBJEXTS_NOSPIN_ALLOC flag from enum objext_flags include/linux/memcontrol.h | 3 +- include/linux/rcupdate.h | 4 +-- mm/kmemleak.c | 22 ++++++------- mm/slub.c | 80 ++++++++++++++++++++++++++++++++++++---------- 4 files changed, 76 insertions(+), 33 deletions(-)