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| author | Andrew Morton <akpm@linux-foundation.org> | 2022-09-26 13:13:15 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2022-09-26 13:13:15 -0700 |
| commit | 6d751329e761338faa9c24c2c9736f27bc54282b (patch) | |
| tree | 6e1778a7448552c58d12da88f70f6ad2718d55da /arch/powerpc | |
| parent | 088b8aa537c2c767765f1c19b555f21ffe555786 (diff) | |
| parent | 59298997df89e19aad426d4ae0a7e5037074da5a (diff) | |
| download | linux-stable-6d751329e761338faa9c24c2c9736f27bc54282b.tar.gz linux-stable-6d751329e761338faa9c24c2c9736f27bc54282b.tar.bz2 linux-stable-6d751329e761338faa9c24c2c9736f27bc54282b.zip | |
Merge branch 'mm-hotfixes-stable' into mm-stable
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/mm/book3s64/radix_pgtable.c | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/arch/powerpc/mm/book3s64/radix_pgtable.c b/arch/powerpc/mm/book3s64/radix_pgtable.c index 698274109c91..e712f80fe189 100644 --- a/arch/powerpc/mm/book3s64/radix_pgtable.c +++ b/arch/powerpc/mm/book3s64/radix_pgtable.c @@ -937,15 +937,6 @@ pmd_t radix__pmdp_collapse_flush(struct vm_area_struct *vma, unsigned long addre pmd = *pmdp; pmd_clear(pmdp); - /* - * pmdp collapse_flush need to ensure that there are no parallel gup - * walk after this call. This is needed so that we can have stable - * page ref count when collapsing a page. We don't allow a collapse page - * if we have gup taken on the page. We can ensure that by sending IPI - * because gup walk happens with IRQ disabled. - */ - serialize_against_pte_lookup(vma->vm_mm); - radix__flush_tlb_collapsed_pmd(vma->vm_mm, address); return pmd; |