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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-17 14:06:53 -0600 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2022-12-17 14:06:53 -0600 |
| commit | 4f292c4de4f6fb83776c0ff22674121eb6ddfa2f (patch) | |
| tree | 7625005ed153dbc8341867bfc0076aae5adf93f9 /mm/userfaultfd.c | |
| parent | 03d84bd6d43269df2dc63b2945dfed6610fac526 (diff) | |
| parent | 3e844d842d49cdbe61a4b338bdd512654179488a (diff) | |
| download | linux-4f292c4de4f6fb83776c0ff22674121eb6ddfa2f.tar.gz linux-4f292c4de4f6fb83776c0ff22674121eb6ddfa2f.tar.bz2 linux-4f292c4de4f6fb83776c0ff22674121eb6ddfa2f.zip | |
Merge tag 'x86_mm_for_6.2_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Dave Hansen:
"New Feature:
- Randomize the per-cpu entry areas
Cleanups:
- Have CR3_ADDR_MASK use PHYSICAL_PAGE_MASK instead of open coding it
- Move to "native" set_memory_rox() helper
- Clean up pmd_get_atomic() and i386-PAE
- Remove some unused page table size macros"
* tag 'x86_mm_for_6.2_v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (35 commits)
x86/mm: Ensure forced page table splitting
x86/kasan: Populate shadow for shared chunk of the CPU entry area
x86/kasan: Add helpers to align shadow addresses up and down
x86/kasan: Rename local CPU_ENTRY_AREA variables to shorten names
x86/mm: Populate KASAN shadow for entire per-CPU range of CPU entry area
x86/mm: Recompute physical address for every page of per-CPU CEA mapping
x86/mm: Rename __change_page_attr_set_clr(.checkalias)
x86/mm: Inhibit _PAGE_NX changes from cpa_process_alias()
x86/mm: Untangle __change_page_attr_set_clr(.checkalias)
x86/mm: Add a few comments
x86/mm: Fix CR3_ADDR_MASK
x86/mm: Remove P*D_PAGE_MASK and P*D_PAGE_SIZE macros
mm: Convert __HAVE_ARCH_P..P_GET to the new style
mm: Remove pointless barrier() after pmdp_get_lockless()
x86/mm/pae: Get rid of set_64bit()
x86_64: Remove pointless set_64bit() usage
x86/mm/pae: Be consistent with pXXp_get_and_clear()
x86/mm/pae: Use WRITE_ONCE()
x86/mm/pae: Don't (ab)use atomic64
mm/gup: Fix the lockless PMD access
...
Diffstat (limited to 'mm/userfaultfd.c')
| -rw-r--r-- | mm/userfaultfd.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/mm/userfaultfd.c b/mm/userfaultfd.c index b7a9479bece2..0499907b6f1a 100644 --- a/mm/userfaultfd.c +++ b/mm/userfaultfd.c @@ -632,7 +632,7 @@ retry: break; } - dst_pmdval = pmd_read_atomic(dst_pmd); + dst_pmdval = pmdp_get_lockless(dst_pmd); /* * If the dst_pmd is mapped as THP don't * override it and just be strict. |