From: Ackerley Tng <ackerleytng@google.com>
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 <ackerleytng@google.com>
Subject: [RFC PATCH 01/19] mm: hugetlb: Expose get_hstate_idx()
Date: Tue, 6 Jun 2023 19:03:46 +0000 [thread overview]
Message-ID: <b3924b31a274477b623d156b456ebc8891756e10.1686077275.git.ackerleytng@google.com> (raw)
In-Reply-To: <cover.1686077275.git.ackerleytng@google.com>
Expose get_hstate_idx() so it can be used from KVM's guest_mem code
Signed-off-by: Ackerley Tng <ackerleytng@google.com>
---
fs/hugetlbfs/inode.c | 9 ---------
include/linux/hugetlb.h | 14 ++++++++++++++
2 files changed, 14 insertions(+), 9 deletions(-)
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 9062da6da567..406d7366cf3e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -1560,15 +1560,6 @@ static int can_do_hugetlb_shm(void)
return capable(CAP_IPC_LOCK) || in_group_p(shm_group);
}
-static int get_hstate_idx(int page_size_log)
-{
- struct hstate *h = hstate_sizelog(page_size_log);
-
- if (!h)
- return -1;
- return hstate_index(h);
-}
-
/*
* Note that size should be aligned to proper hugepage size in caller side,
* otherwise hugetlb_reserve_pages reserves one less hugepages than intended.
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 7c977d234aba..37c2edf7beea 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -876,6 +876,15 @@ static inline int hstate_index(struct hstate *h)
return h - hstates;
}
+static inline int get_hstate_idx(int page_size_log)
+{
+ struct hstate *h = hstate_sizelog(page_size_log);
+
+ if (!h)
+ return -1;
+ return hstate_index(h);
+}
+
extern int dissolve_free_huge_page(struct page *page);
extern int dissolve_free_huge_pages(unsigned long start_pfn,
unsigned long end_pfn);
@@ -1142,6 +1151,11 @@ static inline int hstate_index(struct hstate *h)
return 0;
}
+static inline int get_hstate_idx(int page_size_log)
+{
+ return 0;
+}
+
static inline int dissolve_free_huge_page(struct page *page)
{
return 0;
--
2.41.0.rc0.172.g3f132b7071-goog
next prev parent reply other threads:[~2023-06-06 19:04 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-06 19:03 [RFC PATCH 00/19] hugetlb support for KVM guest_mem Ackerley Tng
2023-06-06 19:03 ` Ackerley Tng [this message]
2023-06-06 19:03 ` [RFC PATCH 02/19] mm: hugetlb: Move and expose hugetlbfs_zero_partial_page Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 03/19] mm: hugetlb: Expose remove_inode_hugepages Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 04/19] mm: hugetlb: Decouple hstate, subpool from inode Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 05/19] mm: hugetlb: Allow alloc_hugetlb_folio() to be parametrized by subpool and hstate Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 06/19] mm: hugetlb: Provide hugetlb_filemap_add_folio() Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 07/19] mm: hugetlb: Refactor vma_*_reservation functions Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 08/19] mm: hugetlb: Refactor restore_reserve_on_error Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 09/19] mm: hugetlb: Use restore_reserve_on_error directly in filesystems Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 10/19] mm: hugetlb: Parametrize alloc_hugetlb_folio_from_subpool() by resv_map Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 11/19] mm: hugetlb: Parametrize hugetlb functions " Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 12/19] mm: truncate: Expose preparation steps for truncate_inode_pages_final Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 13/19] KVM: guest_mem: Refactor kvm_gmem fd creation to be in layers Ackerley Tng
2023-06-06 19:03 ` [RFC PATCH 14/19] KVM: guest_mem: Refactor cleanup to separate inode and file cleanup Ackerley Tng
2023-06-06 19:04 ` [RFC PATCH 15/19] KVM: guest_mem: hugetlb: initialization and cleanup Ackerley Tng
2023-06-06 19:04 ` [RFC PATCH 16/19] KVM: guest_mem: hugetlb: allocate and truncate from hugetlb Ackerley Tng
2023-06-06 19:04 ` [RFC PATCH 17/19] KVM: selftests: Add basic selftests for hugetlbfs-backed guest_mem Ackerley Tng
2023-06-06 19:04 ` [RFC PATCH 18/19] KVM: selftests: Support various types of backing sources for private memory Ackerley Tng
2023-06-06 19:04 ` [RFC PATCH 19/19] KVM: selftests: Update test for various private memory backing source types Ackerley Tng
2023-06-08 4:38 ` [RFC PATCH 00/19] hugetlb support for KVM guest_mem Isaku Yamahata
2023-06-16 18:28 ` Mike Kravetz
2023-06-21 9:01 ` Vishal Annapurve
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