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Fri, 07 Jun 2019 19:52:32 +0000 Received: from abhmp0015.oracle.com (abhmp0015.oracle.com [141.146.116.21]) by aserv0122.oracle.com (8.14.4/8.14.4) with ESMTP id x57JqS5p019893; Fri, 7 Jun 2019 19:52:28 GMT Received: from oracle.com (/75.80.107.76) by default (Oracle Beehive Gateway v4.0) with ESMTP ; Fri, 07 Jun 2019 12:52:28 -0700 From: Larry Bassel To: mike.kravetz@oracle.com, willy@infradead.org, dan.j.williams@intel.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org Subject: [RFC PATCH v2 1/2] Rename CONFIG_ARCH_WANT_HUGE_PMD_SHARE to CONFIG_ARCH_HAS_HUGE_PMD_SHARE Date: Fri, 7 Jun 2019 12:51:02 -0700 Message-Id: <1559937063-8323-2-git-send-email-larry.bassel@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1559937063-8323-1-git-send-email-larry.bassel@oracle.com> References: <1559937063-8323-1-git-send-email-larry.bassel@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9281 signatures=668687 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=974 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1906070132 X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9281 signatures=668687 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1810050000 definitions=main-1906070132 X-BeenThere: linux-nvdimm@lists.01.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Linux-nvdimm developer list." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linux-nvdimm-bounces@lists.01.org Sender: "Linux-nvdimm" X-Virus-Scanned: ClamAV using ClamSMTP Signed-off-by: Larry Bassel --- arch/arm64/Kconfig | 2 +- arch/arm64/mm/hugetlbpage.c | 2 +- arch/x86/Kconfig | 2 +- mm/hugetlb.c | 6 +++--- 4 files changed, 6 insertions(+), 6 deletions(-) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 697ea05..36d6189 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -901,7 +901,7 @@ config HW_PERF_EVENTS config SYS_SUPPORTS_HUGETLBFS def_bool y -config ARCH_WANT_HUGE_PMD_SHARE +config ARCH_HAS_HUGE_PMD_SHARE def_bool y if ARM64_4K_PAGES || (ARM64_16K_PAGES && !ARM64_VA_BITS_36) config ARCH_HAS_CACHE_LINE_SIZE diff --git a/arch/arm64/mm/hugetlbpage.c b/arch/arm64/mm/hugetlbpage.c index f475e54..4f3cb3f 100644 --- a/arch/arm64/mm/hugetlbpage.c +++ b/arch/arm64/mm/hugetlbpage.c @@ -241,7 +241,7 @@ pte_t *huge_pte_alloc(struct mm_struct *mm, */ ptep = pte_alloc_map(mm, pmdp, addr); } else if (sz == PMD_SIZE) { - if (IS_ENABLED(CONFIG_ARCH_WANT_HUGE_PMD_SHARE) && + if (IS_ENABLED(CONFIG_ARCH_HAS_HUGE_PMD_SHARE) && pud_none(READ_ONCE(*pudp))) ptep = huge_pmd_share(mm, addr, pudp); else diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 2bbbd4d..fdbddb9 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -301,7 +301,7 @@ config ARCH_HIBERNATION_POSSIBLE config ARCH_SUSPEND_POSSIBLE def_bool y -config ARCH_WANT_HUGE_PMD_SHARE +config ARCH_HAS_HUGE_PMD_SHARE def_bool y config ARCH_WANT_GENERAL_HUGETLB diff --git a/mm/hugetlb.c b/mm/hugetlb.c index ac843d3..3a54c9d 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -4652,7 +4652,7 @@ long hugetlb_unreserve_pages(struct inode *inode, long start, long end, return 0; } -#ifdef CONFIG_ARCH_WANT_HUGE_PMD_SHARE +#ifdef CONFIG_ARCH_HAS_HUGE_PMD_SHARE static unsigned long page_table_shareable(struct vm_area_struct *svma, struct vm_area_struct *vma, unsigned long addr, pgoff_t idx) @@ -4807,7 +4807,7 @@ int huge_pmd_unshare(struct mm_struct *mm, unsigned long *addr, pte_t *ptep) return 1; } #define want_pmd_share() (1) -#else /* !CONFIG_ARCH_WANT_HUGE_PMD_SHARE */ +#else /* !CONFIG_ARCH_HAS_HUGE_PMD_SHARE */ pte_t *huge_pmd_share(struct mm_struct *mm, unsigned long addr, pud_t *pud) { return NULL; @@ -4823,7 +4823,7 @@ void adjust_range_if_pmd_sharing_possible(struct vm_area_struct *vma, { } #define want_pmd_share() (0) -#endif /* CONFIG_ARCH_WANT_HUGE_PMD_SHARE */ +#endif /* CONFIG_ARCH_HAS_HUGE_PMD_SHARE */ #ifdef CONFIG_ARCH_WANT_GENERAL_HUGETLB pte_t *huge_pte_alloc(struct mm_struct *mm,