From: Kirill Tkhai <ktkhai@virtuozzo.com>
To: akpm@linux-foundation.org, dan.j.williams@intel.com,
ktkhai@virtuozzo.com, mhocko@suse.com, keith.busch@intel.com,
kirill.shutemov@linux.intel.com, pasha.tatashin@oracle.com,
alexander.h.duyck@linux.intel.com, ira.weiny@intel.com,
andreyknvl@google.com, arunks@codeaurora.org, vbabka@suse.cz,
cl@linux.com, riel@surriel.com, keescook@chromium.org,
hannes@cmpxchg.org, npiggin@gmail.com,
mathieu.desnoyers@efficios.com, shakeelb@google.com, guro@fb.com,
aarcange@redhat.com, hughd@google.com, jglisse@redhat.com,
mgorman@techsingularity.net, daniel.m.jordan@oracle.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org
Subject: [PATCH RFC 4/5] mm: Export round_hint_to_min()
Date: Wed, 15 May 2019 18:11:38 +0300 [thread overview]
Message-ID: <155793309872.13922.9196517703774034670.stgit@localhost.localdomain> (raw)
In-Reply-To: <155793276388.13922.18064660723547377633.stgit@localhost.localdomain>
Signed-off-by: Kirill Tkhai <ktkhai@virtuozzo.com>
---
include/linux/mman.h | 14 ++++++++++++++
mm/mmap.c | 13 -------------
2 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/include/linux/mman.h b/include/linux/mman.h
index 4b08e9c9c538..69feb3144c12 100644
--- a/include/linux/mman.h
+++ b/include/linux/mman.h
@@ -4,6 +4,7 @@
#include <linux/mm.h>
#include <linux/percpu_counter.h>
+#include <linux/security.h>
#include <linux/atomic.h>
#include <uapi/linux/mman.h>
@@ -73,6 +74,19 @@ static inline void vm_unacct_memory(long pages)
vm_acct_memory(-pages);
}
+/*
+ * If a hint addr is less than mmap_min_addr change hint to be as
+ * low as possible but still greater than mmap_min_addr
+ */
+static inline unsigned long round_hint_to_min(unsigned long hint)
+{
+ hint &= PAGE_MASK;
+ if (((void *)hint != NULL) &&
+ (hint < mmap_min_addr))
+ return PAGE_ALIGN(mmap_min_addr);
+ return hint;
+}
+
/*
* Allow architectures to handle additional protection bits
*/
diff --git a/mm/mmap.c b/mm/mmap.c
index 46266f6825ae..b2a1f77643cd 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1318,19 +1318,6 @@ struct anon_vma *find_mergeable_anon_vma(struct vm_area_struct *vma)
return NULL;
}
-/*
- * If a hint addr is less than mmap_min_addr change hint to be as
- * low as possible but still greater than mmap_min_addr
- */
-static inline unsigned long round_hint_to_min(unsigned long hint)
-{
- hint &= PAGE_MASK;
- if (((void *)hint != NULL) &&
- (hint < mmap_min_addr))
- return PAGE_ALIGN(mmap_min_addr);
- return hint;
-}
-
static inline int mlock_future_check(struct mm_struct *mm,
unsigned long flags,
unsigned long len)
next prev parent reply other threads:[~2019-05-15 15:11 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-15 15:11 [PATCH RFC 0/5] mm: process_vm_mmap() -- syscall for duplication a process mapping Kirill Tkhai
2019-05-15 15:11 ` [PATCH RFC 1/5] mm: Add process_vm_mmap() syscall declaration Kirill Tkhai
2019-05-15 15:11 ` [PATCH RFC 2/5] mm: Extend copy_vma() Kirill Tkhai
2019-05-15 15:11 ` [PATCH RFC 3/5] mm: Extend copy_page_range() Kirill Tkhai
2019-05-15 15:11 ` Kirill Tkhai [this message]
2019-05-15 15:11 ` [PATCH RFC 5/5] mm: Add process_vm_mmap() Kirill Tkhai
2019-05-15 18:29 ` Kees Cook
2019-05-16 12:54 ` Kirill Tkhai
2019-05-15 18:46 ` [PATCH RFC 0/5] mm: process_vm_mmap() -- syscall for duplication a process mapping Jann Horn
2019-05-16 13:02 ` Kirill Tkhai
2019-05-16 13:14 ` Jann Horn
2019-05-15 19:38 ` Adam Borowski
2019-05-16 13:10 ` Kirill Tkhai
2019-05-16 13:42 ` Adam Borowski
2019-05-16 14:25 ` Kirill Tkhai
2019-05-16 13:30 ` Michal Hocko
2019-05-16 13:52 ` Michal Hocko
2019-05-16 14:22 ` Kirill Tkhai
2019-05-16 13:32 ` Jann Horn
2019-05-16 13:56 ` Kirill Tkhai
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=155793309872.13922.9196517703774034670.stgit@localhost.localdomain \
--to=ktkhai@virtuozzo.com \
--cc=aarcange@redhat.com \
--cc=akpm@linux-foundation.org \
--cc=alexander.h.duyck@linux.intel.com \
--cc=andreyknvl@google.com \
--cc=arunks@codeaurora.org \
--cc=cl@linux.com \
--cc=dan.j.williams@intel.com \
--cc=daniel.m.jordan@oracle.com \
--cc=guro@fb.com \
--cc=hannes@cmpxchg.org \
--cc=hughd@google.com \
--cc=ira.weiny@intel.com \
--cc=jglisse@redhat.com \
--cc=keescook@chromium.org \
--cc=keith.busch@intel.com \
--cc=kirill.shutemov@linux.intel.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=mathieu.desnoyers@efficios.com \
--cc=mgorman@techsingularity.net \
--cc=mhocko@suse.com \
--cc=npiggin@gmail.com \
--cc=pasha.tatashin@oracle.com \
--cc=riel@surriel.com \
--cc=shakeelb@google.com \
--cc=vbabka@suse.cz \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).