From: Axel Rasmussen <axelrasmussen@google.com>
To: Alexander Viro <viro@zeniv.linux.org.uk>,
Andrea Arcangeli <aarcange@redhat.com>,
Andrew Morton <akpm@linux-foundation.org>,
Hugh Dickins <hughd@google.com>,
Jerome Glisse <jglisse@redhat.com>, Joe Perches <joe@perches.com>,
Lokesh Gidra <lokeshgidra@google.com>,
Mike Kravetz <mike.kravetz@oracle.com>,
Mike Rapoport <rppt@linux.vnet.ibm.com>,
Peter Xu <peterx@redhat.com>, Shaohua Li <shli@fb.com>,
Shuah Khan <shuah@kernel.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Wang Qing <wangqing@vivo.com>
Cc: linux-api@vger.kernel.org, linux-fsdevel@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-mm@kvack.org, Axel Rasmussen <axelrasmussen@google.com>,
Brian Geffon <bgeffon@google.com>,
"Dr . David Alan Gilbert" <dgilbert@redhat.com>,
Mina Almasry <almasrymina@google.com>,
Oliver Upton <oupton@google.com>
Subject: [PATCH v3 01/10] userfaultfd/hugetlbfs: avoid including userfaultfd_k.h in hugetlb.h
Date: Thu, 15 Apr 2021 11:47:23 -0700 [thread overview]
Message-ID: <20210415184732.3410521-2-axelrasmussen@google.com> (raw)
In-Reply-To: <20210415184732.3410521-1-axelrasmussen@google.com>
Minimizing header file inclusion is desirable. In this case, we can do
so just by forward declaring the enumeration our signature relies upon.
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
---
include/linux/hugetlb.h | 4 +++-
mm/hugetlb.c | 1 +
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 09f1fd12a6fa..ca8868cdac16 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -11,11 +11,11 @@
#include <linux/kref.h>
#include <linux/pgtable.h>
#include <linux/gfp.h>
-#include <linux/userfaultfd_k.h>
struct ctl_table;
struct user_struct;
struct mmu_gather;
+enum mcopy_atomic_mode;
#ifndef is_hugepd
typedef struct { unsigned long pd; } hugepd_t;
@@ -135,6 +135,7 @@ void hugetlb_show_meminfo(void);
unsigned long hugetlb_total_pages(void);
vm_fault_t hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
unsigned long address, unsigned int flags);
+
#ifdef CONFIG_USERFAULTFD
int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, pte_t *dst_pte,
struct vm_area_struct *dst_vma,
@@ -143,6 +144,7 @@ int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, pte_t *dst_pte,
enum mcopy_atomic_mode mode,
struct page **pagep);
#endif /* CONFIG_USERFAULTFD */
+
bool hugetlb_reserve_pages(struct inode *inode, long from, long to,
struct vm_area_struct *vma,
vm_flags_t vm_flags);
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 54d81d5947ed..b1652e747318 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -40,6 +40,7 @@
#include <linux/hugetlb_cgroup.h>
#include <linux/node.h>
#include <linux/page_owner.h>
+#include <linux/userfaultfd_k.h>
#include "internal.h"
int hugetlb_max_hstate __read_mostly;
--
2.31.1.368.gbe11c130af-goog
next prev parent reply other threads:[~2021-04-15 18:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-15 18:47 [PATCH v3 00/10] userfaultfd: add minor fault handling for shmem Axel Rasmussen
2021-04-15 18:47 ` Axel Rasmussen [this message]
2021-04-15 18:47 ` [PATCH v3 02/10] userfaultfd/shmem: combine shmem_{mcopy_atomic,mfill_zeropage}_pte Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 03/10] userfaultfd/shmem: support UFFDIO_CONTINUE for shmem Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 04/10] userfaultfd/shmem: support minor fault registration " Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 05/10] userfaultfd/selftests: use memfd_create for shmem test type Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 06/10] userfaultfd/selftests: create alias mappings in the shmem test Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 07/10] userfaultfd/selftests: reinitialize test context in each test Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 08/10] userfaultfd/selftests: exercise minor fault handling shmem support Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 09/10] userfaultfd/shmem: modify shmem_mcopy_atomic_pte to use install_ptes Axel Rasmussen
2021-04-15 18:47 ` [PATCH v3 10/10] userfaultfd: update documentation to mention shmem minor faults Axel Rasmussen
2021-04-15 19:12 ` [PATCH v3 00/10] userfaultfd: add minor fault handling for shmem Hugh Dickins
2021-04-20 21:28 ` Axel Rasmussen
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