From: Mike Rapoport <rppt@kernel•org>
To: Andrew Morton <akpm@linux-foundation•org>
Cc: Alexander Viro <viro@zeniv•linux.org.uk>,
Andy Lutomirski <luto@kernel•org>, Arnd Bergmann <arnd@arndb•de>,
Borislav Petkov <bp@alien8•de>,
Catalin Marinas <catalin.marinas@arm•com>,
Christopher Lameter <cl@linux•com>,
Dan Williams <dan.j.williams@intel•com>,
Dave Hansen <dave.hansen@linux•intel.com>,
David Hildenbrand <david@redhat•com>,
Elena Reshetova <elena.reshetova@intel•com>,
"H. Peter Anvin" <hpa@zytor•com>,
Hagen Paul Pfeifer <hagen@jauu•net>,
Ingo Molnar <mingo@redhat•com>,
James Bottomley <James.Bottomley@HansenPartnership•com>,
James Bottomley <jejb@linux•ibm.com>,
Kees Cook <keescook@chromium•org>,
"Kirill A. Shutemov" <kirill@shutemov•name>,
Matthew Wilcox <willy@infradead•org>,
Matthew Garrett <mjg59@srcf•ucam.org>,
Mark Rutland <mark.rutland@arm•com>,
Michal Hocko <mhocko@suse•com>,
Mike Rapoport <rppt@linux•ibm.com>,
Mike Rapoport <rppt@kernel•org>,
Michael Kerrisk <mtk.manpages@gmail•com>,
Palmer Dabbelt <palmer@dabbelt•com>,
Palmer Dabbelt <palmerdabbelt@google•com>,
Paul Walmsley <paul.walmsley@sifive•com>,
Peter Zijlstra <peterz@infradead•org>,
"Rafael J. Wysocki" <rjw@rjwysocki•net>,
Rick Edgecombe <rick.p.edgecombe@intel•com>,
Roman Gushchin <guro@fb•com>, Shakeel Butt <shakeelb@google•com>,
Shuah Khan <shuah@kernel•org>,
Thomas Gleixner <tglx@linutronix•de>,
Tycho Andersen <tycho@tycho•ws>, Will Deacon <will@kernel•org>,
Yury Norov <yury.norov@gmail•com>,
linux-api@vger•kernel.org, linux-arch@vger•kernel.org,
linux-arm-kernel@lists•infradead.org,
linux-fsdevel@vger•kernel.org, linux-mm@kvack•org,
linux-kernel@vger•kernel.org, linux-kselftest@vger•kernel.org,
linux-nvdimm@lists•01.org, linux-riscv@lists•infradead.org,
x86@kernel•org
Subject: [PATCH v20 1/7] mmap: make mlock_future_check() global
Date: Tue, 18 May 2021 10:20:28 +0300 [thread overview]
Message-ID: <20210518072034.31572-2-rppt@kernel.org> (raw)
In-Reply-To: <20210518072034.31572-1-rppt@kernel.org>
From: Mike Rapoport <rppt@linux•ibm.com>
It will be used by the upcoming secret memory implementation.
Signed-off-by: Mike Rapoport <rppt@linux•ibm.com>
Reviewed-by: David Hildenbrand <david@redhat•com>
Acked-by: James Bottomley <James.Bottomley@HansenPartnership•com>
Cc: Alexander Viro <viro@zeniv•linux.org.uk>
Cc: Andy Lutomirski <luto@kernel•org>
Cc: Arnd Bergmann <arnd@arndb•de>
Cc: Borislav Petkov <bp@alien8•de>
Cc: Catalin Marinas <catalin.marinas@arm•com>
Cc: Christopher Lameter <cl@linux•com>
Cc: Dan Williams <dan.j.williams@intel•com>
Cc: Dave Hansen <dave.hansen@linux•intel.com>
Cc: David Hildenbrand <david@redhat•com>
Cc: Elena Reshetova <elena.reshetova@intel•com>
Cc: Hagen Paul Pfeifer <hagen@jauu•net>
Cc: "H. Peter Anvin" <hpa@zytor•com>
Cc: Ingo Molnar <mingo@redhat•com>
Cc: James Bottomley <jejb@linux•ibm.com>
Cc: "Kirill A. Shutemov" <kirill@shutemov•name>
Cc: Mark Rutland <mark.rutland@arm•com>
Cc: Matthew Wilcox <willy@infradead•org>
Cc: Michael Kerrisk <mtk.manpages@gmail•com>
Cc: Palmer Dabbelt <palmer@dabbelt•com>
Cc: Palmer Dabbelt <palmerdabbelt@google•com>
Cc: Paul Walmsley <paul.walmsley@sifive•com>
Cc: Peter Zijlstra <peterz@infradead•org>
Cc: Rick Edgecombe <rick.p.edgecombe@intel•com>
Cc: Roman Gushchin <guro@fb•com>
Cc: Shakeel Butt <shakeelb@google•com>
Cc: Shuah Khan <shuah@kernel•org>
Cc: Thomas Gleixner <tglx@linutronix•de>
Cc: Tycho Andersen <tycho@tycho•ws>
Cc: Will Deacon <will@kernel•org>
---
mm/internal.h | 3 +++
mm/mmap.c | 5 ++---
2 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/mm/internal.h b/mm/internal.h
index 54bd0dc2c23c..46eb82eaa195 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -373,6 +373,9 @@ static inline void munlock_vma_pages_all(struct vm_area_struct *vma)
extern void mlock_vma_page(struct page *page);
extern unsigned int munlock_vma_page(struct page *page);
+extern int mlock_future_check(struct mm_struct *mm, unsigned long flags,
+ unsigned long len);
+
/*
* Clear the page's PageMlocked(). This can be useful in a situation where
* we want to unconditionally remove a page from the pagecache -- e.g.,
diff --git a/mm/mmap.c b/mm/mmap.c
index 0584e540246e..81f5595a8490 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1352,9 +1352,8 @@ static inline unsigned long round_hint_to_min(unsigned long hint)
return hint;
}
-static inline int mlock_future_check(struct mm_struct *mm,
- unsigned long flags,
- unsigned long len)
+int mlock_future_check(struct mm_struct *mm, unsigned long flags,
+ unsigned long len)
{
unsigned long locked, lock_limit;
--
2.28.0
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next prev parent reply other threads:[~2021-05-18 7:23 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-18 7:20 [PATCH v20 0/7] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2021-05-18 7:20 ` Mike Rapoport [this message]
2021-05-18 7:20 ` [PATCH v20 2/7] riscv/Kconfig: make direct map manipulation options depend on MMU Mike Rapoport
2021-05-18 7:20 ` [PATCH v20 3/7] set_memory: allow querying whether set_direct_map_*() is actually enabled Mike Rapoport
2021-05-18 7:20 ` [PATCH v20 4/7] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2021-05-19 0:44 ` Andrew Morton
2021-05-19 3:50 ` Mike Rapoport
2021-05-18 7:20 ` [PATCH v20 5/7] PM: hibernate: disable when there are active secretmem users Mike Rapoport
2021-05-18 7:20 ` [PATCH v20 6/7] arch, mm: wire up memfd_secret system call where relevant Mike Rapoport
2021-05-18 7:20 ` [PATCH v20 7/7] secretmem: test: add basic selftest for memfd_secret(2) Mike Rapoport
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