diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2019-11-15 10:30:50 +0100 |
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committer | Thomas Gleixner <tglx@linutronix.de> | 2019-11-15 10:30:50 +0100 |
commit | ac94be498f84f7327533b62faca4c3da64434904 (patch) | |
tree | 63893f37afb67cd400bf60ec16a35440d16f2a90 /arch/x86/mm/fault.c | |
parent | dce7cd62754b5d4a6e401b8b0769ec94cf971041 (diff) | |
parent | 8c5bd25bf42effd194d4b0b43895c42b374e620b (diff) |
Merge branch 'linus' into x86/hyperv
Pick up upstream fixes to avoid conflicts.
Diffstat (limited to 'arch/x86/mm/fault.c')
-rw-r--r-- | arch/x86/mm/fault.c | 15 |
1 files changed, 6 insertions, 9 deletions
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index 6c46095cd0d9..9ceacd1156db 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -177,13 +177,14 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) pmd = pmd_offset(pud, address); pmd_k = pmd_offset(pud_k, address); - if (!pmd_present(*pmd_k)) - return NULL; - if (!pmd_present(*pmd)) + if (pmd_present(*pmd) != pmd_present(*pmd_k)) set_pmd(pmd, *pmd_k); + + if (!pmd_present(*pmd_k)) + return NULL; else - BUG_ON(pmd_page(*pmd) != pmd_page(*pmd_k)); + BUG_ON(pmd_pfn(*pmd) != pmd_pfn(*pmd_k)); return pmd_k; } @@ -203,17 +204,13 @@ void vmalloc_sync_all(void) spin_lock(&pgd_lock); list_for_each_entry(page, &pgd_list, lru) { spinlock_t *pgt_lock; - pmd_t *ret; /* the pgt_lock only for Xen */ pgt_lock = &pgd_page_get_mm(page)->page_table_lock; spin_lock(pgt_lock); - ret = vmalloc_sync_one(page_address(page), address); + vmalloc_sync_one(page_address(page), address); spin_unlock(pgt_lock); - - if (!ret) - break; } spin_unlock(&pgd_lock); } |