From: akpm@linux-foundation.org
To: lstoakes@gmail.com, alexandre.bounine@idt.com,
mporter@kernel.crashing.org, mm-commits@vger.kernel.org
Subject: [merged] rapidio-use-get_user_pages_unlocked.patch removed from -mm tree
Date: Tue, 28 Feb 2017 12:50:10 -0800 [thread overview]
Message-ID: <58b5e282.hHirIiDzrljIA/yI%akpm@linux-foundation.org> (raw)
The patch titled
Subject: rapidio: use get_user_pages_unlocked()
has been removed from the -mm tree. Its filename was
rapidio-use-get_user_pages_unlocked.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Lorenzo Stoakes <lstoakes@gmail.com>
Subject: rapidio: use get_user_pages_unlocked()
Moving from get_user_pages() to get_user_pages_unlocked() simplifies the code
and takes advantage of VM_FAULT_RETRY functionality when faulting in pages.
Link: http://lkml.kernel.org/r/20170103205024.6704-1-lstoakes@gmail.com
Signed-off-by: Lorenzo Stoakes <lstoakes@gmail.com>
Acked-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
drivers/rapidio/devices/rio_mport_cdev.c | 11 +++++------
1 file changed, 5 insertions(+), 6 deletions(-)
diff -puN drivers/rapidio/devices/rio_mport_cdev.c~rapidio-use-get_user_pages_unlocked drivers/rapidio/devices/rio_mport_cdev.c
--- a/drivers/rapidio/devices/rio_mport_cdev.c~rapidio-use-get_user_pages_unlocked
+++ a/drivers/rapidio/devices/rio_mport_cdev.c
@@ -889,17 +889,16 @@ rio_dma_transfer(struct file *filp, u32
goto err_req;
}
- down_read(¤t->mm->mmap_sem);
- pinned = get_user_pages(
+ pinned = get_user_pages_unlocked(
(unsigned long)xfer->loc_addr & PAGE_MASK,
nr_pages,
- dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0,
- page_list, NULL);
- up_read(¤t->mm->mmap_sem);
+ page_list,
+ dir == DMA_FROM_DEVICE ? FOLL_WRITE : 0);
if (pinned != nr_pages) {
if (pinned < 0) {
- rmcd_error("get_user_pages err=%ld", pinned);
+ rmcd_error("get_user_pages_unlocked err=%ld",
+ pinned);
nr_pages = 0;
} else
rmcd_error("pinned %ld out of %ld pages",
_
Patches currently in -mm which might be from lstoakes@gmail.com are
reply other threads:[~2017-02-28 20:51 UTC|newest]
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