Merge tag 'mm-hotfixes-stable-2023-07-28-15-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull hotfixes from Andrew Morton:
"11 hotfixes. Five are cc:stable and the remainder address post-6.4
issues or aren't considered serious enough to justify backporting"

* tag 'mm-hotfixes-stable-2023-07-28-15-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
mm/memory-failure: fix hardware poison check in unpoison_memory()
proc/vmcore: fix signedness bug in read_from_oldmem()
mailmap: update remaining active codeaurora.org email addresses
mm: lock VMA in dup_anon_vma() before setting ->anon_vma
mm: fix memory ordering for mm_lock_seq and vm_lock_seq
scripts/spelling.txt: remove 'thead' as a typo
mm/pagewalk: fix EFI_PGT_DUMP of espfix area
shmem: minor fixes to splice-read implementation
tmpfs: fix Documentation of noswap and huge mount options
Revert "um: Use swap() to make code cleaner"
mm/damon/core-test: initialise context before test in damon_test_set_attrs()

.mailmap

···
 Aaron Durbin <[e-mail]>
 Abel Vesa <[e-mail]> <[e-mail]>
 Abel Vesa <[e-mail]> <[e-mail]>
+Abhijeet Dharmapurikar <[e-mail]> <[e-mail]>
 Abhinav Kumar <[e-mail]> <[e-mail]>
+Ahmad Masri <[e-mail]> <[e-mail]>
 Adam Oldham <[e-mail]>
 Adam Radford <[e-mail]>
 Adriana Reus <[e-mail]> <[e-mail]>
···
 Alexander Mikhalitsyn <[e-mail]> <[e-mail]>
 Alexandre Belloni <[e-mail]> <[e-mail]>
 Alexandre Ghiti <[e-mail]> <[e-mail]>
+Alexei Avshalom Lazar <[e-mail]> <[e-mail]>
 Alexei Starovoitov <[e-mail]> <[e-mail]>
 Alexei Starovoitov <[e-mail]> <[e-mail]>
 Alexei Starovoitov <[e-mail]> <[e-mail]>
···
 Alex Shi <[e-mail]> <[e-mail]>
 Alex Shi <[e-mail]> <[e-mail]>
 Alex Shi <[e-mail]> <[e-mail]>
+Aloka Dixit <[e-mail]> <[e-mail]>
 Al Viro <[e-mail]>
 Al Viro <[e-mail]>
+Amit Blay <[e-mail]> <[e-mail]>
+Amit Nischal <[e-mail]> <[e-mail]>
 Andi Kleen <[e-mail]> <[e-mail]>
 Andi Shyti <[e-mail]> <[e-mail]>
 Andreas Herrmann <[e-mail]>
···
 Andrzej Hajda <[e-mail]> <[e-mail]>
 André Almeida <[e-mail]> <[e-mail]>
 Andy Adamson <[e-mail]>
+Anilkumar Kolli <[e-mail]> <[e-mail]>
+Anirudh Ghayal <[e-mail]> <[e-mail]>
 Antoine Tenart <[e-mail]> <[e-mail]>
 Antoine Tenart <[e-mail]> <[e-mail]>
 Antonio Ospite <[e-mail]> <[e-mail]>
···
 Ard Biesheuvel <[e-mail]> <[e-mail]>
 Arnaud Patard <[e-mail]>
 Arnd Bergmann <[e-mail]>
+Arun Kumar Neelakantam <[e-mail]> <[e-mail]>
+Ashok Raj Nagarajan <[e-mail]> <[e-mail]>
+Ashwin Chaugule <[e-mail]> <[e-mail]>
+Asutosh Das <[e-mail]> <[e-mail]>
 Atish Patra <[e-mail]> <[e-mail]>
+Avaneesh Kumar Dwivedi <[e-mail]> <[e-mail]>
 Axel Dyks <[e-mail]>
 Axel Lin <[e-mail]>
+Balakrishna Godavarthi <[e-mail]> <[e-mail]>
+Banajit Goswami <[e-mail]> <[e-mail]>
+Baochen Qiang <[e-mail]> <[e-mail]>
 Baolin Wang <[e-mail]> <[e-mail]>
 Baolin Wang <[e-mail]> <[e-mail]>
 Baolin Wang <[e-mail]> <[e-mail]>
···
 Brian King <[e-mail]>
 Brian Silverman <[e-mail]> <[e-mail]>
 Cai Huoqing <[e-mail]> <[e-mail]>
+Can Guo <[e-mail]> <[e-mail]>
+Carl Huang <[e-mail]> <[e-mail]>
 Changbin Du <[e-mail]> <[e-mail]>
 Changbin Du <[e-mail]> <[e-mail]>
 Chao Yu <[e-mail]> <[e-mail]>
 Chao Yu <[e-mail]> <[e-mail]>
 Chris Chiu <[e-mail]> <[e-mail]>
 Chris Chiu <[e-mail]> <[e-mail]>
+Chris Lew <[e-mail]> <[e-mail]>
 Christian Borntraeger <[e-mail]> <[e-mail]>
 Christian Borntraeger <[e-mail]> <[e-mail]>
 Christian Borntraeger <[e-mail]> <[e-mail]>
···
 Daniel Borkmann <[e-mail]> <[e-mail]>
 Daniel Borkmann <[e-mail]> <[e-mail]>
 David Brownell <[e-mail]>
+David Collins <[e-mail]> <[e-mail]>
 David Woodhouse <[e-mail]>
+Dedy Lansky <[e-mail]> <[e-mail]>
+Deepak Kumar Singh <[e-mail]> <[e-mail]>
 Dengcheng Zhu <[e-mail]> <[e-mail]>
 Dengcheng Zhu <[e-mail]> <[e-mail]>
 Dengcheng Zhu <[e-mail]> <[e-mail]>
···
 Domen Puncer <[e-mail]>
 Douglas Gilbert <[e-mail]>
 Ed L. Cashin <[e-mail]>
+Elliot Berman <[e-mail]> <[e-mail]>
 Enric Balletbo i Serra <[e-mail]> <[e-mail]>
 Enric Balletbo i Serra <[e-mail]> <[e-mail]>
 Erik Kaneda <[e-mail]> <[e-mail]>
···
 Felipe W Damasio <[e-mail]>
 Felix Kuhling <[e-mail]>
 Felix Moeller <[e-mail]>
+Fenglin Wu <[e-mail]> <[e-mail]>
 Filipe Lautert <[e-mail]>
 Finn Thain <[e-mail]> <[e-mail]>
 Franck Bui-Huu <[e-mail]>
···
 Gregory CLEMENT <[e-mail]> <[e-mail]>
 Guilherme G. Piccoli <[e-mail]> <[e-mail]>
 Guilherme G. Piccoli <[e-mail]> <[e-mail]>
+Gokul Sriram Palanisamy <[e-mail]> <[e-mail]>
+Govindaraj Saminathan <[e-mail]> <[e-mail]>
 Guo Ren <[e-mail]> <[e-mail]>
 Guo Ren <[e-mail]> <[e-mail]>
+Guru Das Srinagesh <[e-mail]> <[e-mail]>
 Gustavo Padovan <[e-mail]>
 Gustavo Padovan <[e-mail]>
 Hanjun Guo <[e-mail]> <[e-mail]>
···
 J. Bruce Fields <[e-mail]> <[e-mail]>
 J. Bruce Fields <[e-mail]> <[e-mail]>
 Jacob Shin <[e-mail]>
+Jack Pham <[e-mail]> <[e-mail]>
 Jaegeuk Kim <[e-mail]> <[e-mail]>
 Jaegeuk Kim <[e-mail]> <[e-mail]>
 Jaegeuk Kim <[e-mail]> <[e-mail]>
···
 Jayachandran C <[e-mail]> <[e-mail]>
 <[e-mail]> <[e-mail]>
 Jean Tourrilhes <[e-mail]>
+Jeevan Shriram <[e-mail]> <[e-mail]>
 Jeff Garzik <[e-mail]>
 Jeff Layton <[e-mail]> <[e-mail]>
 Jeff Layton <[e-mail]> <[e-mail]>
 Jeff Layton <[e-mail]> <[e-mail]>
+Jeffrey Hugo <[e-mail]> <[e-mail]>
 Jens Axboe <[e-mail]> <[e-mail]>
 Jens Axboe <[e-mail]> <[e-mail]>
 Jens Axboe <[e-mail]> <[e-mail]>
···
 Jens Osterkamp <[e-mail]>
 Jernej Skrabec <[e-mail]> <[e-mail]>
 Jessica Zhang <[e-mail]> <[e-mail]>
+Jilai Wang <[e-mail]> <[e-mail]>
 Jiri Pirko <[e-mail]> <[e-mail]>
 Jiri Pirko <[e-mail]> <[e-mail]>
 Jiri Pirko <[e-mail]> <[e-mail]>
···
 Jiri Slaby <[e-mail]> <[e-mail]>
 Jisheng Zhang <[e-mail]> <[e-mail]>
 Jisheng Zhang <[e-mail]> <[e-mail]>
+Jishnu Prakash <[e-mail]> <[e-mail]>
 Johan Hovold <[e-mail]> <[e-mail]>
 Johan Hovold <[e-mail]> <[e-mail]>
 John Crispin <[e-mail]> <[e-mail]>
···
 <[e-mail]> <[e-mail]>
 Josh Poimboeuf <[e-mail]> <[e-mail]>
 Josh Poimboeuf <[e-mail]> <[e-mail]>
+Jouni Malinen <[e-mail]> <[e-mail]>
 Juha Yrjola <at solidboot.com>
 Juha Yrjola <[e-mail]>
 Juha Yrjola <[e-mail]>
···
 Iskren Chernev <[e-mail]> <[e-mail]>
 Kalle Valo <[e-mail]> <[e-mail]>
 Kalyan Thota <[e-mail]> <[e-mail]>
+Karthikeyan Periyasamy <[e-mail]> <[e-mail]>
+Kathiravan T <[e-mail]> <[e-mail]>
 Kay Sievers <[e-mail]>
 Kees Cook <[e-mail]> <[e-mail]>
 Kees Cook <[e-mail]> <[e-mail]>
···
 Keith Busch <[e-mail]> <[e-mail]>
 Keith Busch <[e-mail]> <[e-mail]>
 Kenneth W Chen <[e-mail]>
+Kenneth Westfield <[e-mail]> <[e-mail]>
+Kiran Gunda <[e-mail]> <[e-mail]>
 Kirill Tkhai <[e-mail]> <[e-mail]>
 Konstantin Khlebnikov <[e-mail]> <[e-mail]>
 Konstantin Khlebnikov <[e-mail]> <[e-mail]>
···
 Krzysztof Kozlowski <[e-mail]> <[e-mail]>
 Krzysztof Kozlowski <[e-mail]> <[e-mail]>
 Krzysztof Kozlowski <[e-mail]> <[e-mail]>
+Kshitiz Godara <[e-mail]> <[e-mail]>
 Kuninori Morimoto <[e-mail]>
 Kuogee Hsieh <[e-mail]> <[e-mail]>
 Lee Jones <[e-mail]> <[e-mail]>
···
 Leon Romanovsky <[e-mail]> <[e-mail]>
 Leon Romanovsky <[e-mail]> <[e-mail]>
 Leon Romanovsky <[e-mail]> <[e-mail]>
+Liam Mark <[e-mail]> <[e-mail]>
 Linas Vepstas <[e-mail]>
 Linus Lüssing <[e-mail]> <[e-mail]>
 Linus Lüssing <[e-mail]> <[e-mail]>
 <[e-mail]> <[e-mail]>
 Li Yang <[e-mail]> <[e-mail]>
 Li Yang <[e-mail]> <[e-mail]>
+Lior David <[e-mail]> <[e-mail]>
 Lorenzo Pieralisi <[e-mail]> <[e-mail]>
 Luca Ceresoli <[e-mail]> <[e-mail]>
 Lukasz Luba <[e-mail]> <[e-mail]>
+Luo Jie <[e-mail]> <[e-mail]>
 Maciej W. Rozycki <[e-mail]> <[e-mail]>
 Maciej W. Rozycki <[e-mail]> <[e-mail]>
+Maharaja Kennadyrajan <[e-mail]> <[e-mail]>
+Maheshwar Ajja <[e-mail]> <[e-mail]>
+Malathi Gottam <[e-mail]> <[e-mail]>
+Manikanta Pubbisetty <[e-mail]> <[e-mail]>
 Manivannan Sadhasivam <[e-mail]> <[e-mail]>
 Manivannan Sadhasivam <[e-mail]> <[e-mail]>
+Manoj Basapathi <[e-mail]> <[e-mail]>
 Marcin Nowakowski <[e-mail]> <[e-mail]>
 Marc Zyngier <[e-mail]> <[e-mail]>
 Marek Behún <[e-mail]> <[e-mail]>
···
 Matt Ranostay <[e-mail]> Matthew Ranostay <[e-mail]>
 Matt Ranostay <[e-mail]> <[e-mail]>
 Matt Redfearn <[e-mail]> <[e-mail]>
+Maulik Shah <[e-mail]> <[e-mail]>
 Mauro Carvalho Chehab <[e-mail]> <[e-mail]>
 Mauro Carvalho Chehab <[e-mail]> <[e-mail]>
 Mauro Carvalho Chehab <[e-mail]> <[e-mail]>
···
 Maxime Ripard <[e-mail]> <[e-mail]>
 Maxime Ripard <[e-mail]> <[e-mail]>
 Maxime Ripard <[e-mail]> <[e-mail]>
+Maya Erez <[e-mail]> <[e-mail]>
 Mayuresh Janorkar <[e-mail]>
+Md Sadre Alam <[e-mail]> <[e-mail]>
+Miaoqing Pan <[e-mail]> <[e-mail]>
 Michael Buesch <[e-mail]>
 Michal Simek <[e-mail]> <[e-mail]>
 Michel Dänzer <[e-mail]>
···
 Mike Rapoport <[e-mail]> <[e-mail]>
 Mike Rapoport <[e-mail]> <[e-mail]>
 Mike Rapoport <[e-mail]> <[e-mail]>
+Mike Tipton <[e-mail]> <[e-mail]>
 Miodrag Dinic <[e-mail]> <[e-mail]>
 Miquel Raynal <[e-mail]> <[e-mail]>
 Mitesh shah <[e-mail]>
···
 Morten Welinder <[e-mail]>
 Morten Welinder <[e-mail]>
 Morten Welinder <[e-mail]>
+Mukesh Ojha <[e-mail]> <[e-mail]>
+Muna Sinada <[e-mail]> <[e-mail]>
+Murali Nalajala <[e-mail]> <[e-mail]>
 Mythri P K <[e-mail]>
 Nadia Yvette Chambers <[e-mail]> William Lee Irwin III <[e-mail]>
 Nathan Chancellor <[e-mail]> <[e-mail]>
+Neeraj Upadhyay <[e-mail]> <[e-mail]>
 Neil Armstrong <[e-mail]> <[e-mail]>
 Nguyen Anh Quynh <[e-mail]>
 Nicholas Piggin <[e-mail]> <[e-mail]>
···
 Nikolay Aleksandrov <[e-mail]> <[e-mail]>
 Nikolay Aleksandrov <[e-mail]> <[e-mail]>
 Nikolay Aleksandrov <[e-mail]> <[e-mail]>
+Odelu Kukatla <[e-mail]> <[e-mail]>
 Oleksandr Natalenko <[e-mail]> <[e-mail]>
 Oleksij Rempel <[e-mail]> <[e-mail]>
 Oleksij Rempel <[e-mail]> <[e-mail]>
···
 Oleksij Rempel <[e-mail]> <[e-mail]>
 Oleksij Rempel <[e-mail]> <[e-mail]>
 Oliver Upton <[e-mail]> <[e-mail]>
+Oza Pawandeep <[e-mail]> <[e-mail]>
 Pali Rohár <[e-mail]> <[e-mail]>
 Paolo 'Blaisorblade' Giarrusso <[e-mail]>
 Patrick Mochel <[e-mail]>
···
 Paul E. McKenney <[e-mail]> <[e-mail]>
 Paul Mackerras <[e-mail]> <[e-mail]>
 Paul Mackerras <[e-mail]> <[e-mail]>
+Pavankumar Kondeti <[e-mail]> <[e-mail]>
 Peter A Jonsson <[e-mail]>
 Peter Oruba <[e-mail]>
 Peter Oruba <[e-mail]>
 Pratyush Anand <[e-mail]> <[e-mail]>
 Praveen BP <[e-mail]>
+Pradeep Kumar Chitrapu <[e-mail]> <[e-mail]>
+Prasad Sodagudi <[e-mail]> <[e-mail]>
 Punit Agrawal <[e-mail]> <[e-mail]>
 Qais Yousef <[e-mail]> <[e-mail]>
 Qais Yousef <[e-mail]> <[e-mail]>
···
 Rafael J. Wysocki <[e-mail]> <[e-mail]>
 Rajeev Nandan <[e-mail]> <[e-mail]>
 Rajendra Nayak <[e-mail]> <[e-mail]>
+Rajeshwari Ravindra Kamble <[e-mail]> <[e-mail]>
+Raju P.L.S.S.S.N <[e-mail]> <[e-mail]>
 Rajesh Shah <[e-mail]>
+Rakesh Pillai <[e-mail]> <[e-mail]>
 Ralf Baechle <[e-mail]>
 Ralf Wildenhues <[e-mail]>
+Ram Chandra Jangir <[e-mail]> <[e-mail]>
 Randy Dunlap <[e-mail]> <[e-mail]>
+Ravi Kumar Bokka <[e-mail]> <[e-mail]>
+Ravi Kumar Siddojigari <[e-mail]> <[e-mail]>
 Rémi Denis-Courmont <[e-mail]>
 Ricardo Ribalda <[e-mail]> <[e-mail]>
 Ricardo Ribalda <[e-mail]> Ricardo Ribalda Delgado <[e-mail]>
···
 Richard Leitner <[e-mail]> <[e-mail]>
 Richard Leitner <[e-mail]> <[e-mail]>
 Robert Foss <[e-mail]> <[e-mail]>
+Rocky Liao <[e-mail]> <[e-mail]>
 Roman Gushchin <[e-mail]> <[e-mail]>
 Roman Gushchin <[e-mail]> <[e-mail]>
 Roman Gushchin <[e-mail]> <[e-mail]>
···
 Santosh Shilimkar <[e-mail]>
 Sarangdhar Joshi <[e-mail]>
 Sascha Hauer <[e-mail]>
+Sahitya Tummala <[e-mail]> <[e-mail]>
+Sathishkumar Muruganandam <[e-mail]> <[e-mail]>
 Satya Priya <[e-mail]> <[e-mail]>
 S.Çağlar Onur <[e-mail]>
+Sayali Lokhande <[e-mail]> <[e-mail]>
 Sean Christopherson <[e-mail]> <[e-mail]>
 Sean Nyekjaer <[e-mail]> <[e-mail]>
+Sean Tranchetti <[e-mail]> <[e-mail]>
 Sebastian Reichel <[e-mail]> <[e-mail]>
 Sebastian Reichel <[e-mail]> <[e-mail]>
 Sedat Dilek <[e-mail]> <[e-mail]>
+Senthilkumar N L <[e-mail]> <[e-mail]>
 Seth Forshee <[e-mail]> <[e-mail]>
 Shannon Nelson <[e-mail]> <[e-mail]>
 Shannon Nelson <[e-mail]> <[e-mail]>
 Shannon Nelson <[e-mail]> <[e-mail]>
+Sharath Chandra Vurukala <[e-mail]> <[e-mail]>
 Shiraz Hashim <[e-mail]> <[e-mail]>
 Shuah Khan <[e-mail]> <[e-mail]>
 Shuah Khan <[e-mail]> <[e-mail]>
 Shuah Khan <[e-mail]> <[e-mail]>
 Shuah Khan <[e-mail]> <[e-mail]>
+Sibi Sankar <[e-mail]> <[e-mail]>
+Sid Manning <[e-mail]> <[e-mail]>
 Simon Arlott <[e-mail]> <[e-mail]>
 Simon Kelley <[e-mail]>
+Sricharan Ramabadhran <[e-mail]> <[e-mail]>
+Srinivas Ramana <[e-mail]> <[e-mail]>
+Sriram R <[e-mail]> <[e-mail]>
 Stéphane Witzmann <[e-mail]>
 Stephen Hemminger <[e-mail]> <[e-mail]>
 Stephen Hemminger <[e-mail]> <[e-mail]>
···
 Stephen Hemminger <[e-mail]> <[e-mail]>
 Steve Wise <[e-mail]> <[e-mail]>
 Steve Wise <[e-mail]> <[e-mail]>
-Subash Abhinov Kasiviswanathan <[e-mail]>
+Subash Abhinov Kasiviswanathan <[e-mail]> <[e-mail]>
+Subbaraman Narayanamurthy <[e-mail]> <[e-mail]>
 Subhash Jadavani <[e-mail]>
+Sudarshan Rajagopalan <[e-mail]> <[e-mail]>
 Sudeep Holla <[e-mail]> Sudeep KarkadaNagesha <[e-mail]>
 Sumit Semwal <[e-mail]>
+Surabhi Vishnoi <[e-mail]> <[e-mail]>
 Takashi YOSHII <[e-mail]>
+Tamizh Chelvam Raja <[e-mail]> <[e-mail]>
+Taniya Das <[e-mail]> <[e-mail]>
 Tejun Heo <[e-mail]>
 Thomas Graf <[e-mail]>
 Thomas Körper <[e-mail]> <[e-mail]>
 Thomas Pedersen <[e-mail]>
 Tiezhu Yang <[e-mail]> <[e-mail]>
+Tingwei Zhang <[e-mail]> <[e-mail]>
+Tirupathi Reddy <[e-mail]> <[e-mail]>
 Tobias Klauser <[e-mail]> <[e-mail]>
 Tobias Klauser <[e-mail]> <[e-mail]>
 Tobias Klauser <[e-mail]> <[e-mail]>
 Tobias Klauser <[e-mail]> <[e-mail]>
 Todor Tomov <[e-mail]> <[e-mail]>
 Tony Luck <[e-mail]>
+Trilok Soni <[e-mail]> <[e-mail]>
 TripleX Chung <[e-mail]> <[e-mail]>
 TripleX Chung <[e-mail]> <[e-mail]>
 Tsuneo Yoshioka <[e-mail]>
···
 Uwe Kleine-König <[e-mail]>
 Uwe Kleine-König <[e-mail]>
 Valdis Kletnieks <[e-mail]>
+Vara Reddy <[e-mail]> <[e-mail]>
+Varadarajan Narayanan <[e-mail]> <[e-mail]>
+Vasanthakumar Thiagarajan <[e-mail]> <[e-mail]>
 Vasily Averin <[e-mail]> <[e-mail]>
 Vasily Averin <[e-mail]> <[e-mail]>
 Vasily Averin <[e-mail]> <[e-mail]>
 Vasily Averin <[e-mail]> <[e-mail]>
 Valentin Schneider <[e-mail]> <[e-mail]>
+Veera Sundaram Sankaran <[e-mail]> <[e-mail]>
+Veerabhadrarao Badiganti <[e-mail]> <[e-mail]>
+Venkateswara Naralasetty <[e-mail]> <[e-mail]>
 Vikash Garodia <[e-mail]> <[e-mail]>
 Vinod Koul <[e-mail]> <[e-mail]>
 Vinod Koul <[e-mail]> <[e-mail]>
···
 Viresh Kumar <[e-mail]> <[e-mail]>
 Viresh Kumar <[e-mail]> <[e-mail]>
 Viresh Kumar <[e-mail]> <[e-mail]>
+Vivek Aknurwar <[e-mail]> <[e-mail]>
 Vivien Didelot <[e-mail]> <[e-mail]>
 Vlad Dogaru <[e-mail]> <[e-mail]>
 Vladimir Davydov <[e-mail]> <[e-mail]>
 Vladimir Davydov <[e-mail]> <[e-mail]>
 WeiXiong Liao <[e-mail]> <[e-mail]>
+Wen Gong <[e-mail]> <[e-mail]>
+Wesley Cheng <[e-mail]> <[e-mail]>
 Will Deacon <[e-mail]> <[e-mail]>
 Wolfram Sang <[e-mail]> <[e-mail]>
 Wolfram Sang <[e-mail]> <[e-mail]>

Documentation/filesystems/tmpfs.rst

···
            is half of the number of your physical RAM pages, or (on a
            machine with highmem) the number of lowmem RAM pages,
            whichever is the lower.
-noswap     Disables swap. Remounts must respect the original settings.
-           By default swap is enabled.
 =========  ============================================================
 
 These parameters accept a suffix k, m or g for kilo, mega and giga and
···
 use up all the memory on the machine; but enhances the scalability of
 that instance in a system with many CPUs making intensive use of it.
 
+tmpfs blocks may be swapped out, when there is a shortage of memory.
+tmpfs has a mount option to disable its use of swap:
+
+======  ===========================================================
+noswap  Disables swap. Remounts must respect the original settings.
+        By default swap is enabled.
+======  ===========================================================
+
 tmpfs also supports Transparent Huge Pages which requires a kernel
 configured with CONFIG_TRANSPARENT_HUGEPAGE and with huge supported for
 your system (has_transparent_hugepage(), which is architecture specific).
 The mount options for this are:
 
-======  ============================================================
-huge=0  never: disables huge pages for the mount
-huge=1  always: enables huge pages for the mount
-huge=2  within_size: only allocate huge pages if the page will be
-        fully within i_size, also respect fadvise()/madvise() hints.
-huge=3  advise: only allocate huge pages if requested with
-        fadvise()/madvise()
-======  ============================================================
+================ ==============================================================
+huge=never       Do not allocate huge pages.  This is the default.
+huge=always      Attempt to allocate huge page every time a new page is needed.
+huge=within_size Only allocate huge page if it will be fully within i_size.
+                 Also respect madvise(2) hints.
+huge=advise      Only allocate huge page if requested with madvise(2).
+================ ==============================================================
 
-There is a sysfs file which you can also use to control system wide THP
-configuration for all tmpfs mounts, the file is:
-
-/sys/kernel/mm/transparent_hugepage/shmem_enabled
-
-This sysfs file is placed on top of THP sysfs directory and so is registered
-by THP code. It is however only used to control all tmpfs mounts with one
-single knob. Since it controls all tmpfs mounts it should only be used either
-for emergency or testing purposes. The values you can set for shmem_enabled are:
-
-==  ============================================================
--1  deny: disables huge on shm_mnt and all mounts, for
-    emergency use
--2  force: enables huge on shm_mnt and all mounts, w/o needing
-    option, for testing
-==  ============================================================
+See also Documentation/admin-guide/mm/transhuge.rst, which describes the
+sysfs file /sys/kernel/mm/transparent_hugepage/shmem_enabled: which can
+be used to deny huge pages on all tmpfs mounts in an emergency, or to
+force huge pages on all tmpfs mounts for testing.
 
 tmpfs has a mount option to set the NUMA memory allocation policy for
 all files in that instance (if CONFIG_NUMA is enabled) - which can be

arch/um/os-Linux/sigio.c

···
  * Copyright (C) 2002 - 2008 Jeff Dike (jdike@{addtoit,linux.intel}.com)
  */
 
-#include <linux/minmax.h>
 #include <unistd.h>
 #include <errno.h>
 #include <fcntl.h>
···
 
 static int write_sigio_thread(void *unused)
 {
-	struct pollfds *fds;
+	struct pollfds *fds, tmp;
 	struct pollfd *p;
 	int i, n, respond_fd;
 	char c;
···
 					       "write_sigio_thread : "
 					       "read on socket failed, "
 					       "err = %d\n", errno);
-				swap(current_poll, next_poll);
+				tmp = current_poll;
+				current_poll = next_poll;
+				next_poll = tmp;
 				respond_fd = sigio_private[1];
 			}
 			else {

fs/proc/vmcore.c

···
 			 u64 *ppos, bool encrypted)
 {
 	unsigned long pfn, offset;
-	size_t nr_bytes;
+	ssize_t nr_bytes;
 	ssize_t read = 0, tmp;
 	int idx;
 

include/linux/mm.h

···
  */
 static inline bool vma_start_read(struct vm_area_struct *vma)
 {
-	/* Check before locking. A race might cause false locked result. */
-	if (vma->vm_lock_seq == READ_ONCE(vma->vm_mm->mm_lock_seq))
+	/*
+	 * Check before locking. A race might cause false locked result.
+	 * We can use READ_ONCE() for the mm_lock_seq here, and don't need
+	 * ACQUIRE semantics, because this is just a lockless check whose result
+	 * we don't rely on for anything - the mm_lock_seq read against which we
+	 * need ordering is below.
+	 */
+	if (READ_ONCE(vma->vm_lock_seq) == READ_ONCE(vma->vm_mm->mm_lock_seq))
 		return false;
 
 	if (unlikely(down_read_trylock(&vma->vm_lock->lock) == 0))
···
 	 * False unlocked result is impossible because we modify and check
 	 * vma->vm_lock_seq under vma->vm_lock protection and mm->mm_lock_seq
 	 * modification invalidates all existing locks.
+	 *
+	 * We must use ACQUIRE semantics for the mm_lock_seq so that if we are
+	 * racing with vma_end_write_all(), we only start reading from the VMA
+	 * after it has been unlocked.
+	 * This pairs with RELEASE semantics in vma_end_write_all().
 	 */
-	if (unlikely(vma->vm_lock_seq == READ_ONCE(vma->vm_mm->mm_lock_seq))) {
+	if (unlikely(vma->vm_lock_seq == smp_load_acquire(&vma->vm_mm->mm_lock_seq))) {
 		up_read(&vma->vm_lock->lock);
 		return false;
 	}
···
 	 * current task is holding mmap_write_lock, both vma->vm_lock_seq and
 	 * mm->mm_lock_seq can't be concurrently modified.
 	 */
-	*mm_lock_seq = READ_ONCE(vma->vm_mm->mm_lock_seq);
+	*mm_lock_seq = vma->vm_mm->mm_lock_seq;
 	return (vma->vm_lock_seq == *mm_lock_seq);
 }
 
···
 		return;
 
 	down_write(&vma->vm_lock->lock);
-	vma->vm_lock_seq = mm_lock_seq;
+	/*
+	 * We should use WRITE_ONCE() here because we can have concurrent reads
+	 * from the early lockless pessimistic check in vma_start_read().
+	 * We don't really care about the correctness of that early check, but
+	 * we should use WRITE_ONCE() for cleanliness and to keep KCSAN happy.
+	 */
+	WRITE_ONCE(vma->vm_lock_seq, mm_lock_seq);
 	up_write(&vma->vm_lock->lock);
 }
 
···
 	if (!down_write_trylock(&vma->vm_lock->lock))
 		return false;
 
-	vma->vm_lock_seq = mm_lock_seq;
+	WRITE_ONCE(vma->vm_lock_seq, mm_lock_seq);
 	up_write(&vma->vm_lock->lock);
 	return true;
 }

include/linux/mm_types.h

···
 	};
 
 #ifdef CONFIG_PER_VMA_LOCK
+	/*
+	 * Can only be written (using WRITE_ONCE()) while holding both:
+	 *  - mmap_lock (in write mode)
+	 *  - vm_lock->lock (in write mode)
+	 * Can be read reliably while holding one of:
+	 *  - mmap_lock (in read or write mode)
+	 *  - vm_lock->lock (in read or write mode)
+	 * Can be read unreliably (using READ_ONCE()) for pessimistic bailout
+	 * while holding nothing (except RCU to keep the VMA struct allocated).
+	 *
+	 * This sequence counter is explicitly allowed to overflow; sequence
+	 * counter reuse can only lead to occasional unnecessary use of the
+	 * slowpath.
+	 */
 	int vm_lock_seq;
 	struct vma_lock *vm_lock;
 
···
 					  * by mmlist_lock
 					  */
 #ifdef CONFIG_PER_VMA_LOCK
+		/*
+		 * This field has lock-like semantics, meaning it is sometimes
+		 * accessed with ACQUIRE/RELEASE semantics.
+		 * Roughly speaking, incrementing the sequence number is
+		 * equivalent to releasing locks on VMAs; reading the sequence
+		 * number can be part of taking a read lock on a VMA.
+		 *
+		 * Can be modified under write mmap_lock using RELEASE
+		 * semantics.
+		 * Can be read with no other protection when holding write
+		 * mmap_lock.
+		 * Can be read with ACQUIRE semantics if not holding write
+		 * mmap_lock.
+		 */
 		int mm_lock_seq;
 #endif
 

include/linux/mmap_lock.h

···
 static inline void vma_end_write_all(struct mm_struct *mm)
 {
 	mmap_assert_write_locked(mm);
-	/* No races during update due to exclusive mmap_lock being held */
-	WRITE_ONCE(mm->mm_lock_seq, mm->mm_lock_seq + 1);
+	/*
+	 * Nobody can concurrently modify mm->mm_lock_seq due to exclusive
+	 * mmap_lock being held.
+	 * We need RELEASE semantics here to ensure that preceding stores into
+	 * the VMA take effect before we unlock it with this store.
+	 * Pairs with ACQUIRE semantics in vma_start_read().
+	 */
+	smp_store_release(&mm->mm_lock_seq, mm->mm_lock_seq + 1);
 }
 #else
 static inline void vma_end_write_all(struct mm_struct *mm) {}

mm/damon/core-test.h

···
 
 static void damon_test_set_attrs(struct kunit *test)
 {
-	struct damon_ctx ctx;
+	struct damon_ctx *c = damon_new_ctx();
 	struct damon_attrs valid_attrs = {
 		.min_nr_regions = 10, .max_nr_regions = 1000,
 		.sample_interval = 5000, .aggr_interval = 100000,};
 	struct damon_attrs invalid_attrs;
 
-	KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &valid_attrs), 0);
+	KUNIT_EXPECT_EQ(test, damon_set_attrs(c, &valid_attrs), 0);
 
 	invalid_attrs = valid_attrs;
 	invalid_attrs.min_nr_regions = 1;
-	KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &invalid_attrs), -EINVAL);
+	KUNIT_EXPECT_EQ(test, damon_set_attrs(c, &invalid_attrs), -EINVAL);
 
 	invalid_attrs = valid_attrs;
 	invalid_attrs.max_nr_regions = 9;
-	KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &invalid_attrs), -EINVAL);
+	KUNIT_EXPECT_EQ(test, damon_set_attrs(c, &invalid_attrs), -EINVAL);
 
 	invalid_attrs = valid_attrs;
 	invalid_attrs.aggr_interval = 4999;
-	KUNIT_EXPECT_EQ(test, damon_set_attrs(&ctx, &invalid_attrs), -EINVAL);
+	KUNIT_EXPECT_EQ(test, damon_set_attrs(c, &invalid_attrs), -EINVAL);
 }
 
 static struct kunit_case damon_test_cases[] = {

mm/memory-failure.c

···
 		goto unlock_mutex;
 	}
 
-	if (!folio_test_hwpoison(folio)) {
+	if (!PageHWPoison(p)) {
 		unpoison_pr_info("Unpoison: Page was already unpoisoned %#lx\n",
 				 pfn, &unpoison_rs);
 		goto unlock_mutex;

mm/mmap.c

···
 	 * anon pages imported.
 	 */
 	if (src->anon_vma && !dst->anon_vma) {
+		vma_start_write(dst);
 		dst->anon_vma = src->anon_vma;
 		return anon_vma_clone(dst, src);
 	}

mm/pagewalk.c

···
 	if (walk->no_vma) {
 		/*
 		 * pte_offset_map() might apply user-specific validation.
+		 * Indeed, on x86_64 the pmd entries set up by init_espfix_ap()
+		 * fit its pmd_bad() check (_PAGE_NX set and _PAGE_RW clear),
+		 * and CONFIG_EFI_PGT_DUMP efi_mm goes so far as to walk them.
 		 */
-		if (walk->mm == &init_mm)
+		if (walk->mm == &init_mm || addr >= TASK_SIZE)
 			pte = pte_offset_kernel(pmd, addr);
 		else
 			pte = pte_offset_map(pmd, addr);

mm/shmem.c

···
 		if (*ppos >= i_size_read(inode))
 			break;
 
-		error = shmem_get_folio(inode, *ppos / PAGE_SIZE, &folio, SGP_READ);
+		error = shmem_get_folio(inode, *ppos / PAGE_SIZE, &folio,
+					SGP_READ);
 		if (error) {
 			if (error == -EINVAL)
 				error = 0;
···
 		if (folio) {
 			folio_unlock(folio);
 
-			if (folio_test_hwpoison(folio)) {
+			if (folio_test_hwpoison(folio) ||
+			    (folio_test_large(folio) &&
+			     folio_test_has_hwpoisoned(folio))) {
 				error = -EIO;
 				break;
 			}
···
 			folio_put(folio);
 			folio = NULL;
 		} else {
-			n = splice_zeropage_into_pipe(pipe, *ppos, len);
+			n = splice_zeropage_into_pipe(pipe, *ppos, part);
 		}
 
 		if (!n)

scripts/spelling.txt

···
 temorary||temporary
 temproarily||temporarily
 temperture||temperature
-thead||thread
 theads||threads
 therfore||therefore
 thier||their