From: ira.weiny@intel.com
To: John Hubbard <jhubbard@nvidia.com>,
Andrew Morton <akpm@linux-foundation.org>,
Michal Hocko <mhocko@suse.com>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>,
Peter Zijlstra <peterz@infradead.org>,
Jason Gunthorpe <jgg@ziepe.ca>,
Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
"David S. Miller" <davem@davemloft.net>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Rich Felker <dalias@libc.org>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Thomas Gleixner <tglx@linutronix.de>,
Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>,
Ralf Baechle <ralf@linux-mips.org>,
Paul Burton <paul.burton@mips.com>,
James Hogan <jhogan@kernel.org>
Cc: Ira Weiny <ira.weiny@intel.com>,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
linux-s390@vger.kernel.org, linux-sh@vger.kernel.org,
sparclinux@vger.kernel.org, kvm-ppc@vger.kernel.org,
kvm@vger.kernel.org, linux-fpga@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org,
linux-media@vger.kernel.org, linux-scsi@vger.kernel.org,
devel@driverdev.osuosl.org,
virtualization@lists.linux-foundation.org,
netdev@vger.kernel.org, linux-fbdev@vger.kernel.org,
xen-devel@lists.xenproject.org, devel@lists.orangefs.org,
ceph-devel@vger.kernel.org, rds-devel@oss.oracle.com
Subject: [RESEND PATCH 7/7] IB/mthca: Use the new FOLL_LONGTERM flag to get_user_pages_fast()
Date: Tue, 19 Feb 2019 21:30:40 -0800 [thread overview]
Message-ID: <20190220053040.10831-8-ira.weiny@intel.com> (raw)
In-Reply-To: <20190220053040.10831-1-ira.weiny@intel.com>
From: Ira Weiny <ira.weiny@intel.com>
Use the new FOLL_LONGTERM to get_user_pages_fast() to protect against
FS DAX pages being mapped.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
---
drivers/infiniband/hw/mthca/mthca_memfree.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mthca/mthca_memfree.c b/drivers/infiniband/hw/mthca/mthca_memfree.c
index 112d2f38e0de..8ff0e90d7564 100644
--- a/drivers/infiniband/hw/mthca/mthca_memfree.c
+++ b/drivers/infiniband/hw/mthca/mthca_memfree.c
@@ -472,7 +472,8 @@ int mthca_map_user_db(struct mthca_dev *dev, struct mthca_uar *uar,
goto out;
}
- ret = get_user_pages_fast(uaddr & PAGE_MASK, 1, FOLL_WRITE, pages);
+ ret = get_user_pages_fast(uaddr & PAGE_MASK, 1,
+ FOLL_WRITE | FOLL_LONGTERM, pages);
if (ret < 0)
goto out;
--
2.20.1
next prev parent reply other threads:[~2019-02-20 5:31 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-20 5:30 [RESEND PATCH 0/7] Add FOLL_LONGTERM to GUP fast and use it ira.weiny
2019-02-20 5:30 ` [RESEND PATCH 1/7] mm/gup: Replace get_user_pages_longterm() with FOLL_LONGTERM ira.weiny
2019-02-20 5:30 ` [RESEND PATCH 2/7] mm/gup: Change write parameter to flags in fast walk ira.weiny
2019-02-20 5:30 ` [RESEND PATCH 3/7] mm/gup: Change GUP fast to use flags rather than a write 'bool' ira.weiny
2019-02-20 19:29 ` Mike Marshall
2019-02-21 3:18 ` Souptick Joarder
2019-02-21 22:24 ` Ira Weiny
2019-02-20 5:30 ` [RESEND PATCH 4/7] mm/gup: Add FOLL_LONGTERM capability to GUP fast ira.weiny
2019-02-20 5:30 ` [RESEND PATCH 5/7] IB/hfi1: Use the new FOLL_LONGTERM flag to get_user_pages_fast() ira.weiny
2019-02-20 5:30 ` [RESEND PATCH 6/7] IB/qib: " ira.weiny
2019-02-20 5:30 ` ira.weiny [this message]
2019-02-20 15:19 ` [RESEND PATCH 0/7] Add FOLL_LONGTERM to GUP fast and use it Christoph Hellwig
2019-02-20 18:02 ` Ira Weiny
2019-02-27 19:14 ` Ira Weiny
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