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bh=zTqNedUUD33pi+rIerI27ysOb8vsfwAvAS9c6mk3R14=; b=BR9p7odgz9gHarPmxgkLK3jSj7 eFkcUltTkdzxAb8fOSxNXZZrCFvVrGi/XbEuIRhfQ0aYsrfz7ABwHiFn/WS9exEgWNXMiybNKnL2S HghW8Y1glDDZs9bEPjzJSUSW8IDFITn6PIspdKTIQiU8V4JFbKO0rIkzxSbTIkpdYtwODjGclkQEu amzAhlgNOuvrp3nMx2O+r++nyERMmvRR52S9YGoRpPtIDexKp2lt+neagI+S42J0hNK41mE5nS+yz eiq387rpVX6OKZNAlyNTnBK1f6tTH09ZGRJWXZ9UYt9MnNTXdybd9JcDQ4Me26dTEaGm0+RV8gjKF oDDj1qjw==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1pQgjv-003k2s-K2; Sat, 11 Feb 2023 03:39:51 +0000 From: "Matthew Wilcox (Oracle)" To: linux-mm@kvack.org, linux-arch@vger.kernel.org Cc: "Matthew Wilcox (Oracle)" Subject: [PATCH 7/7] x86: Implement the new page table range API Date: Sat, 11 Feb 2023 03:39:48 +0000 Message-Id: <20230211033948.891959-8-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230211033948.891959-1-willy@infradead.org> References: <20230211033948.891959-1-willy@infradead.org> MIME-Version: 1.0 X-Rspam-User: X-Rspamd-Server: rspam04 X-Rspamd-Queue-Id: D6AADC0002 X-Stat-Signature: jqaeusymqjw5wneb5djm4rair4ubi5ma X-HE-Tag: 1676086814-424218 X-HE-Meta: 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 8RYLy7by sIbU+isKPCFEwv34eh/Zeij6EAPEmEfGC8X4s0ZL6aKEgiKyWVnGKk8RSoLjwizI9q4ZJCql1r8e4VLDev5dYm0H9xolLYWZiWWGhp5y5+kMNGDexy+GJLdT8K40o2jAm9TP0w+sfSOqrTKuXClDHna46QzeO32PrtZ4PJPtrdtZBeWKZWnZS1yhgPXfVDqMjo2rV X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Convert set_pte_at() into set_ptes() and add a noop update_mmu_cache_range(). Signed-off-by: Matthew Wilcox (Oracle) --- arch/x86/include/asm/pgtable.h | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 84be3e07b112..f424371ea143 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -1019,13 +1019,22 @@ static inline pud_t native_local_pudp_get_and_clear(pud_t *pudp) return res; } -static inline void set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pte) +static inline void set_ptes(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte, unsigned int nr) { - page_table_check_ptes_set(mm, addr, ptep, pte, 1); - set_pte(ptep, pte); + page_table_check_ptes_set(mm, addr, ptep, pte, nr); + + for (;;) { + set_pte(ptep, pte); + if (--nr == 0) + break; + ptep++; + pte = __pte(pte_val(pte) + PAGE_SIZE); + } } +#define set_pte_at(mm, addr, ptep, pte) set_ptes(mm, addr, ptep, pte, 1) + static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp, pmd_t pmd) { @@ -1291,6 +1300,10 @@ static inline void update_mmu_cache(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep) { } +static inline void update_mmu_cache_range(struct vm_area_struct *vma, + unsigned long addr, pte_t *ptep, unsigned int nr) +{ +} static inline void update_mmu_cache_pmd(struct vm_area_struct *vma, unsigned long addr, pmd_t *pmd) {