From: Mike Rapoport <rppt@kernel•org>
To: Andrew Morton <akpm@linux-foundation•org>
Cc: Mark Rutland <mark.rutland@arm•com>,
David Hildenbrand <david@redhat•com>,
Peter Zijlstra <peterz@infradead•org>,
Catalin Marinas <catalin.marinas@arm•com>,
Dave Hansen <dave.hansen@linux•intel.com>,
linux-mm@kvack•org, linux-kselftest@vger•kernel.org,
"H. Peter Anvin" <hpa@zytor•com>,
Christopher Lameter <cl@linux•com>, Shuah Khan <shuah@kernel•org>,
Thomas Gleixner <tglx@linutronix•de>,
Elena Reshetova <elena.reshetova@intel•com>,
linux-arch@vger•kernel.org, Tycho Andersen <tycho@tycho•ws>,
linux-nvdimm@lists•01.org, Will Deacon <will@kernel•org>,
x86@kernel•org, Matthew Wilcox <willy@infradead•org>,
Mike Rapoport <rppt@linux•ibm.com>,
Ingo Molnar <mingo@redhat•com>,
Michael Kerrisk <mtk.manpages@gmail•com>,
Arnd Bergmann <arnd@arndb•de>,
James Bottomley <jejb@linux•ibm.com>,
Borislav Petkov <bp@alien8•de>,
Alexander Viro <viro@zeniv•linux.org.uk>,
Andy Lutomirski <luto@kernel•org>,
Paul Walmsley <paul.walmsley@sifive•com>,
"Kirill A. Shutemov" <kirill@shutemov•name>,
Dan Williams <dan.j.williams@intel•com>,
linux-arm-kernel@lists•infradead.org, linux-api@vger•kernel.org,
linux-kernel@vger•kernel.org, linux-riscv@lists•infradead.org,
Palmer Dabbelt <palmer@dabbelt•com>,
linux-fsdevel@vger•kernel.org, Shakeel Butt <shakeelb@google•com>,
Rick Edgecombe <rick.p.edgecombe@intel•com>,
Roman Gushchin <guro@fb•com>, Mike Rapoport <rppt@kernel•org>
Subject: [PATCH v13 02/10] mmap: make mlock_future_check() global
Date: Tue, 1 Dec 2020 09:45:51 +0200 [thread overview]
Message-ID: <20201201074559.27742-3-rppt@kernel.org> (raw)
In-Reply-To: <20201201074559.27742-1-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
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next prev parent reply other threads:[~2020-12-01 7:48 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-01 7:45 [PATCH v13 00/10] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 01/10] mm: add definition of PMD_PAGE_ORDER Mike Rapoport
2020-12-01 7:45 ` Mike Rapoport [this message]
2020-12-01 7:45 ` [PATCH v13 03/10] set_memory: allow set_direct_map_*_noflush() for multiple pages Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 04/10] set_memory: allow querying whether set_direct_map_*() is actually enabled Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 05/10] mm: introduce memfd_secret system call to create "secret" memory areas Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 06/10] secretmem: use PMD-size pages to amortize direct map fragmentation Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 07/10] secretmem: add memcg accounting Mike Rapoport
2020-12-01 16:26 ` Shakeel Butt
2020-12-01 16:44 ` Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 08/10] PM: hibernate: disable when there are active secretmem users Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 09/10] arch, mm: wire up memfd_secret system call were relevant Mike Rapoport
2020-12-01 7:45 ` [PATCH v13 10/10] secretmem: test: add basic selftest for memfd_secret(2) Mike Rapoport
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