Syzbot CI

Subject	mm: optimize unnecessary loads due to ptep_get() and friends out
Author	yeoreum.yun@arm.com
Date	2026-07-22 15:30:09 +0000 UTC
Version
Cc	akpm@linux-foundation.org alex@ghiti.fr anup@brainfault.org aou@eecs.berkeley.edu arnd@arndb.de atish.patra@linux.dev axelrasmussen@google.com baohua@kernel.org bp@alien8.de catalin.marinas@arm.com chenhuacai@kernel.org dave.hansen@linux.intel.com david@kernel.org hannes@cmpxchg.org hpa@zytor.com jonas@southpole.se kasong@tencent.com kernel@xen0n.name kvm-riscv@lists.infradead.org kvm@vger.kernel.org liam@infradead.org linux-arch@vger.kernel.org linux-arm-kernel@lists.infradead.org linux-kernel@vger.kernel.org linux-mips@vger.kernel.org linux-mm@kvack.org linux-openrisc@vger.kernel.org linux-riscv@lists.infradead.org linux@armlinux.org.uk ljs@kernel.org loongarch@lists.linux.dev luto@kernel.org maobibo@loongson.cn mhocko@kernel.org mhocko@suse.com mingo@redhat.com palmer@dabbelt.com peterz@infradead.org pjw@kernel.org qi.zheng@linux.dev rppt@kernel.org shakeel.butt@linux.dev shorne@gmail.com stefan.kristiansson@saunalahti.fi surenb@google.com tglx@kernel.org tsbogend@alpha.franken.de vbabka@kernel.org weixugc@google.com will@kernel.org

Subject

mm: optimize unnecessary loads due to ptep_get() and friends out

Author

yeoreum.yun@arm.com

Date

2026-07-22 15:30:09 +0000 UTC

Version

akpm@linux-foundation.org alex@ghiti.fr anup@brainfault.org aou@eecs.berkeley.edu arnd@arndb.de atish.patra@linux.dev axelrasmussen@google.com baohua@kernel.org bp@alien8.de catalin.marinas@arm.com chenhuacai@kernel.org dave.hansen@linux.intel.com david@kernel.org hannes@cmpxchg.org hpa@zytor.com jonas@southpole.se kasong@tencent.com kernel@xen0n.name kvm-riscv@lists.infradead.org kvm@vger.kernel.org liam@infradead.org linux-arch@vger.kernel.org linux-arm-kernel@lists.infradead.org linux-kernel@vger.kernel.org linux-mips@vger.kernel.org linux-mm@kvack.org linux-openrisc@vger.kernel.org linux-riscv@lists.infradead.org linux@armlinux.org.uk ljs@kernel.org loongarch@lists.linux.dev luto@kernel.org maobibo@loongson.cn mhocko@kernel.org mhocko@suse.com mingo@redhat.com palmer@dabbelt.com peterz@infradead.org pjw@kernel.org qi.zheng@linux.dev rppt@kernel.org shakeel.butt@linux.dev shorne@gmail.com stefan.kristiansson@saunalahti.fi surenb@google.com tglx@kernel.org tsbogend@alpha.franken.de vbabka@kernel.org weixugc@google.com will@kernel.org

Name	Content [All]
[PATCH RFC v2 01/20] ARM: mm: make nommu pgd_t a scalar	[Body]
[PATCH RFC v2 02/20] ARM: mm: make 2-level pgd_t a scalar	[Body]
[PATCH RFC v2 03/20] ARM: mm: remove custom pgdp_get()	[Body]
[PATCH RFC v2 04/20] LoongArch: mm: define pud_leaf() only when PUD exists	[Body]
[PATCH RFC v2 05/20] MIPS: mm: define pud_leaf() only when PUD exists	[Body]
[PATCH RFC v2 06/20] mm/pgtable: define (pgd\|p4d\|pud)_leaf() for folded page tables	[Body]
[PATCH RFC v2 07/20] mm/pgtable: define (pgd\|p4d\|pud)_offset_lockless() for folded page tables	[Body]
[PATCH RFC v2 08/20] mm: vmscan: remove stack copy address of pud pass in wallk_pud_range()	[Body]
[PATCH RFC v2 09/20] loongarch: kvm: remove stack copy address of pXd in pXd_offset()	[Body]
[PATCH RFC v2 10/20] riscv: kvm: remove stack copy address of pXd in pXd_offset()	[Body]
[PATCH RFC v2 11/20] riscv: mm: use proper set_pXd() for generic compile-time folded patable in vmalloc_fault()	[Body]
[PATCH RFC v2 12/20] x86: mm: define pudp_set_access_flags() when CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is enabled only.	[Body]
[PATCH RFC v2 13/20] x86: mm: carve out the generic compile-time folded pgtable case in effective_prot()	[Body]
[PATCH RFC v2 14/20] x86: mm: skip pud setup when using generic compile-time folded pagetable	[Body]
[PATCH RFC v2 15/20] mm/pgtable: optimize pmdp_get() and friends for folded pagetable levels	[Body]
[PATCH RFC v2 16/20] mm/pgtable: catch abuse of folded dummy pgd_t/p4d_t/pud_t	[Body]
[PATCH RFC v2 17/20] mm/pgtable: disallow calling (pgd\|p4d\|pud)_page, pgd_page_vaddr() and (p4d\|pud)_pgtable with dummy	[Body]
[PATCH RFC v2 18/20] mm/pgtable: disallow calling folded set_pgd/set_p4d/set_pud with dummy	[Body]
[PATCH RFC v2 19/20] openrisc/pgtable: drop __pmd_offset()	[Body]
[PATCH RFC v2 20/20] arm64: pgtable: convert pte_present() from macro to static inline	[Body]

Name

Content [All]

[PATCH RFC v2 01/20] ARM: mm: make nommu pgd_t a scalar

[PATCH RFC v2 02/20] ARM: mm: make 2-level pgd_t a scalar

[PATCH RFC v2 03/20] ARM: mm: remove custom pgdp_get()

[PATCH RFC v2 04/20] LoongArch: mm: define pud_leaf() only when PUD exists

[PATCH RFC v2 05/20] MIPS: mm: define pud_leaf() only when PUD exists

[PATCH RFC v2 06/20] mm/pgtable: define (pgd|p4d|pud)_leaf() for folded page tables

[PATCH RFC v2 07/20] mm/pgtable: define (pgd|p4d|pud)_offset_lockless() for folded page tables

[PATCH RFC v2 08/20] mm: vmscan: remove stack copy address of pud pass in wallk_pud_range()

[PATCH RFC v2 09/20] loongarch: kvm: remove stack copy address of pXd in pXd_offset()

[PATCH RFC v2 10/20] riscv: kvm: remove stack copy address of pXd in pXd_offset()

[PATCH RFC v2 11/20] riscv: mm: use proper set_pXd() for generic compile-time folded patable in vmalloc_fault()

[PATCH RFC v2 12/20] x86: mm: define pudp_set_access_flags() when CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD is enabled only.

[PATCH RFC v2 13/20] x86: mm: carve out the generic compile-time folded pgtable case in effective_prot()

[PATCH RFC v2 14/20] x86: mm: skip pud setup when using generic compile-time folded pagetable

[PATCH RFC v2 15/20] mm/pgtable: optimize pmdp_get() and friends for folded pagetable levels

[PATCH RFC v2 16/20] mm/pgtable: catch abuse of folded dummy pgd_t/p4d_t/pud_t

[PATCH RFC v2 17/20] mm/pgtable: disallow calling (pgd|p4d|pud)_page, pgd_page_vaddr() and (p4d|pud)_pgtable with dummy

[PATCH RFC v2 18/20] mm/pgtable: disallow calling folded set_pgd/set_p4d/set_pud with dummy

[PATCH RFC v2 19/20] openrisc/pgtable: drop __pmd_offset()

[PATCH RFC v2 20/20] arm64: pgtable: convert pte_present() from macro to static inline

Session 2026-07-22

Passed

ID (for dev)	140515ca-c6a6-4c2f-8364-5483e3db5aee
Status	finished
Triaged	OK [Log] [Trajectory]
Execution Log	[Link]

Test	Base	Patched	Verdict
[KASAN] Build Base	8026da5cb0d39f7978af447eb5c967cbd36d1ac6 [Config]		passed [Log]
[KASAN] Boot test: Base	8026da5cb0d39f7978af447eb5c967cbd36d1ac6 [Config]		passed [Log]
[KASAN] Build Patched		8026da5cb0d39f7978af447eb5c967cbd36d1ac6 [Config] [patched]	passed [Log]
[KASAN] Boot test: Patched		8026da5cb0d39f7978af447eb5c967cbd36d1ac6 [Config] [patched]	passed [Log]
[KASAN] Fuzz	8026da5cb0d39f7978af447eb5c967cbd36d1ac6 [Config]	8026da5cb0d39f7978af447eb5c967cbd36d1ac6 [Config] [patched]	passed [Log] [Artifacts]

Patches (20)

Series Summary

Sessions

Session 2026-07-22