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>, Ingo Molnar <mingo@redhat.com>,
James Bottomley <jejb@linux.ibm.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Matthew Wilcox <willy@infradead.org>,
Mark Rutland <mark.rutland@arm.com>,
Mike Rapoport <rppt@linux.ibm.com>,
Mike Rapoport <rppt@kernel.org>,
Michael Kerrisk <mtk.manpages@gmail.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Peter Zijlstra <peterz@infradead.org>,
Rick Edgecombe <rick.p.edgecombe@intel.com>,
Roman Gushchin <guro@fb.com>, Shuah Khan <shuah@kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Tycho Andersen <tycho@tycho.ws>, Will Deacon <will@kernel.org>,
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 v11 2/9] mmap: make mlock_future_check() global
Date: Tue, 24 Nov 2020 11:25:49 +0200 [thread overview]
Message-ID: <20201124092556.12009-3-rppt@kernel.org> (raw)
In-Reply-To: <20201124092556.12009-1-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>
---
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 c43ccdddb0f6..ae146a260b14 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -348,6 +348,9 @@ 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 61f72b09d990..c481f088bd50 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1348,9 +1348,8 @@ 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
next prev parent reply other threads:[~2020-11-24 9:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-24 9:25 [PATCH v11 0/9] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-11-24 9:25 ` [PATCH v11 1/9] mm: add definition of PMD_PAGE_ORDER Mike Rapoport
2020-11-24 9:25 ` Mike Rapoport [this message]
2020-11-24 9:25 ` [PATCH v11 3/9] set_memory: allow set_direct_map_*_noflush() for multiple pages Mike Rapoport
2020-11-24 9:25 ` [PATCH v11 4/9] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-11-24 10:59 ` Catalin Marinas
2020-11-24 16:49 ` Mike Rapoport
2020-11-24 9:25 ` [PATCH v11 5/9] secretmem: use PMD-size pages to amortize direct map fragmentation Mike Rapoport
2020-11-24 9:25 ` [PATCH v11 6/9] secretmem: add memcg accounting Mike Rapoport
2020-11-24 9:25 ` [PATCH v11 7/9] PM: hibernate: disable when there are active secretmem users Mike Rapoport
2020-11-24 9:25 ` [PATCH v11 8/9] arch, mm: wire up memfd_secret system call were relevant Mike Rapoport
2020-11-24 9:25 ` [PATCH v11 9/9] secretmem: test: add basic selftest for memfd_secret(2) Mike Rapoport
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