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>,
Daniel Colascione <dancol@google.com>,
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 1/9] userfaultfd/hugetlbfs: avoid including userfaultfd_k.h in hugetlb.h
Date: Thu, 8 Apr 2021 16:43:19 -0700 [thread overview]
Message-ID: <20210408234327.624367-2-axelrasmussen@google.com> (raw)
In-Reply-To: <20210408234327.624367-1-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.
Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
---
include/linux/hugetlb.h | 5 ++++-
mm/hugetlb.c | 1 +
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 1d3246b31a41..dfb749eaf348 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -11,7 +11,6 @@
#include <linux/kref.h>
#include <linux/pgtable.h>
#include <linux/gfp.h>
-#include <linux/userfaultfd_k.h>
struct ctl_table;
struct user_struct;
@@ -136,6 +135,8 @@ 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
+enum mcopy_atomic_mode;
+
int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm, pte_t *dst_pte,
struct vm_area_struct *dst_vma,
unsigned long dst_addr,
@@ -315,6 +316,8 @@ static inline void hugetlb_free_pgd_range(struct mmu_gather *tlb,
}
#ifdef CONFIG_USERFAULTFD
+enum mcopy_atomic_mode;
+
static inline int hugetlb_mcopy_atomic_pte(struct mm_struct *dst_mm,
pte_t *dst_pte,
struct vm_area_struct *dst_vma,
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 9973dec4976c..3b93bbf8c80f 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;
--
2.31.1.295.g9ea45b61b8-goog
next prev parent reply other threads:[~2021-04-08 23:43 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-08 23:43 [PATCH 0/9] userfaultfd: add minor fault handling for shmem Axel Rasmussen
2021-04-08 23:43 ` Axel Rasmussen [this message]
2021-04-12 23:47 ` [PATCH 1/9] userfaultfd/hugetlbfs: avoid including userfaultfd_k.h in hugetlb.h Peter Xu
2021-04-08 23:43 ` [PATCH 2/9] userfaultfd/shmem: combine shmem_{mcopy_atomic,mfill_zeropage}_pte Axel Rasmussen
2021-04-12 23:57 ` Peter Xu
2021-04-08 23:43 ` [PATCH 3/9] userfaultfd/shmem: support minor fault registration for shmem Axel Rasmussen
2021-04-09 16:50 ` Peter Xu
2021-04-08 23:43 ` [PATCH 4/9] userfaultfd/shmem: support UFFDIO_CONTINUE " Axel Rasmussen
2021-04-12 23:17 ` Peter Xu
2021-04-13 4:40 ` Axel Rasmussen
2021-04-13 18:12 ` Peter Xu
2021-04-15 18:18 ` Axel Rasmussen
2021-04-08 23:43 ` [PATCH 5/9] userfaultfd/selftests: use memfd_create for shmem test type Axel Rasmussen
2021-04-08 23:43 ` [PATCH 6/9] userfaultfd/selftests: create alias mappings in the shmem test Axel Rasmussen
2021-04-08 23:43 ` [PATCH 7/9] userfaultfd/selftests: reinitialize test context in each test Axel Rasmussen
2021-04-08 23:43 ` [PATCH 8/9] userfaultfd/selftests: exercise minor fault handling shmem support Axel Rasmussen
2021-04-08 23:43 ` [PATCH 9/9] userfaultfd/shmem: modify shmem_mcopy_atomic_pte to use install_ptes Axel Rasmussen
2021-04-09 5:04 ` [PATCH 0/9] userfaultfd: add minor fault handling for shmem Andrew Morton
2021-04-09 17:03 ` Axel Rasmussen
2021-04-09 21:18 ` Peter Xu
2021-04-09 22:16 ` Mike Kravetz
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