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bh=TbnAfmaUEaUTjNKT8epdT4a2IjxXaCNnR/Vzf4sBC5I=; b=J5SU57vkrRxt+9Hi7Ngd+R6DRu/WYrcVHqjzQy+IvONK5tWUkysuVe6LfVmz0ZHGjk XGtrU22Jtd5+axC9Z6ivNenCeNPzZqh+VtSVpRaYYzQj1s+QbRghAkHsMqzptuH6ItHW g1XJaOx/UVXihGc3QcDUgowTUtQdqTn96HBwR6EywL2EGKZn5p0voxdA93Tccy9MCJum igeTRHMykgs5Ar0bZn38iZC9F2vYgA+aawHOUIwbntjLZPm8573Zo6iHC3AFBDMWiZlj v4F25B53nq35+nkfPFvOXbIPUHHmNrQ0gjpWpn7i8n5ioBwaH0WDvLQuWRfKpAy5Hsum ZB1g== X-Gm-Message-State: AC+VfDwrio7M0jhA9tjE3wFN0+yfrXaHLNlKMNJo4MVFQKCV3KcwP6dt GHePE5nP6nrxgPZYMuWk9pb9KCvuC5nTE1bRjw== X-Received: from ackerleytng-ctop.c.googlers.com ([fda3:e722:ac3:cc00:7f:e700:c0a8:13f8]) (user=ackerleytng job=sendgmr) by 2002:a63:fe05:0:b0:513:9753:46d2 with SMTP id p5-20020a63fe05000000b00513975346d2mr634687pgh.2.1686078262212; Tue, 06 Jun 2023 12:04:22 -0700 (PDT) Date: Tue, 6 Jun 2023 19:03:50 +0000 In-Reply-To: Mime-Version: 1.0 References: X-Mailer: git-send-email 2.41.0.rc0.172.g3f132b7071-goog Message-ID: <7827774c13e975d3d1dedc4a4684cb92eac8b548.1686077275.git.ackerleytng@google.com> Subject: [RFC PATCH 05/19] mm: hugetlb: Allow alloc_hugetlb_folio() to be parametrized by subpool and hstate From: Ackerley Tng To: akpm@linux-foundation.org, mike.kravetz@oracle.com, muchun.song@linux.dev, pbonzini@redhat.com, seanjc@google.com, shuah@kernel.org, willy@infradead.org Cc: brauner@kernel.org, chao.p.peng@linux.intel.com, coltonlewis@google.com, david@redhat.com, dhildenb@redhat.com, dmatlack@google.com, erdemaktas@google.com, hughd@google.com, isaku.yamahata@gmail.com, jarkko@kernel.org, jmattson@google.com, joro@8bytes.org, jthoughton@google.com, jun.nakajima@intel.com, kirill.shutemov@linux.intel.com, liam.merwick@oracle.com, mail@maciej.szmigiero.name, mhocko@suse.com, michael.roth@amd.com, qperret@google.com, rientjes@google.com, rppt@kernel.org, steven.price@arm.com, tabba@google.com, vannapurve@google.com, vbabka@suse.cz, vipinsh@google.com, vkuznets@redhat.com, wei.w.wang@intel.com, yu.c.zhang@linux.intel.com, kvm@vger.kernel.org, linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-mm@kvack.org, qemu-devel@nongnu.org, x86@kernel.org, Ackerley Tng X-Spam-Status: No, score=-9.6 required=5.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_NONE, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE,USER_IN_DEF_DKIM_WL autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1767981964995878773?= X-GMAIL-MSGID: =?utf-8?q?1767981964995878773?= subpool_inode() and hstate_inode() are hugetlbfs-specific. By allowing subpool and hstate to be specified, hugetlb is further modularized from hugetlbfs. Signed-off-by: Ackerley Tng --- include/linux/hugetlb.h | 3 +++ mm/hugetlb.c | 16 ++++++++++++---- 2 files changed, 15 insertions(+), 4 deletions(-) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 2457d7a21974..14df89d1642c 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -747,6 +747,9 @@ struct huge_bootmem_page { }; int isolate_or_dissolve_huge_page(struct page *page, struct list_head *list); +struct folio *alloc_hugetlb_folio_from_subpool( + struct hugepage_subpool *spool, struct hstate *h, + struct vm_area_struct *vma, unsigned long addr, int avoid_reserve); struct folio *alloc_hugetlb_folio(struct vm_area_struct *vma, unsigned long addr, int avoid_reserve); struct folio *alloc_hugetlb_folio_nodemask(struct hstate *h, int preferred_nid, diff --git a/mm/hugetlb.c b/mm/hugetlb.c index 9da419b930df..99ab4bbdb2ce 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -3008,11 +3008,10 @@ int isolate_or_dissolve_huge_page(struct page *page, struct list_head *list) return ret; } -struct folio *alloc_hugetlb_folio(struct vm_area_struct *vma, - unsigned long addr, int avoid_reserve) +struct folio *alloc_hugetlb_folio_from_subpool( + struct hugepage_subpool *spool, struct hstate *h, + struct vm_area_struct *vma, unsigned long addr, int avoid_reserve) { - struct hugepage_subpool *spool = subpool_vma(vma); - struct hstate *h = hstate_vma(vma); struct folio *folio; long map_chg, map_commit; long gbl_chg; @@ -3139,6 +3138,15 @@ struct folio *alloc_hugetlb_folio(struct vm_area_struct *vma, return ERR_PTR(-ENOSPC); } +struct folio *alloc_hugetlb_folio(struct vm_area_struct *vma, + unsigned long addr, int avoid_reserve) +{ + struct hugepage_subpool *spool = subpool_vma(vma); + struct hstate *h = hstate_vma(vma); + + return alloc_hugetlb_folio_from_subpool(spool, h, vma, addr, avoid_reserve); +} + int alloc_bootmem_huge_page(struct hstate *h, int nid) __attribute__ ((weak, alias("__alloc_bootmem_huge_page"))); int __alloc_bootmem_huge_page(struct hstate *h, int nid)