linux-kernel - [PATCH 14/34] oradax: convert put_page() to put_user

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Message-Id: <20190802022005.5117-15-jhubbard@nvidia.com>
Date:   Thu,  1 Aug 2019 19:19:45 -0700
From:   john.hubbard@...il.com
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     Christoph Hellwig <hch@...radead.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Dave Chinner <david@...morbit.com>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Ira Weiny <ira.weiny@...el.com>, Jan Kara <jack@...e.cz>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Jérôme Glisse <jglisse@...hat.com>,
        LKML <linux-kernel@...r.kernel.org>,
        amd-gfx@...ts.freedesktop.org, ceph-devel@...r.kernel.org,
        devel@...verdev.osuosl.org, devel@...ts.orangefs.org,
        dri-devel@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
        kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-block@...r.kernel.org, linux-crypto@...r.kernel.org,
        linux-fbdev@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        linux-media@...r.kernel.org, linux-mm@...ck.org,
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        linux-rpi-kernel@...ts.infradead.org, linux-xfs@...r.kernel.org,
        netdev@...r.kernel.org, rds-devel@....oracle.com,
        sparclinux@...r.kernel.org, x86@...nel.org,
        xen-devel@...ts.xenproject.org, John Hubbard <jhubbard@...dia.com>,
        "David S . Miller" <davem@...emloft.net>,
        Jonathan Helman <jonathan.helman@...cle.com>,
        Rob Gardner <rob.gardner@...cle.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Jonathan Corbet <corbet@....net>,
        Wei Yongjun <weiyongjun1@...wei.com>,
        Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Subject: [PATCH 14/34] oradax: convert put_page() to put_user_page*()

From: John Hubbard <jhubbard@...dia.com>

For pages that were retained via get_user_pages*(), release those pages
via the new put_user_page*() routines, instead of via put_page() or
release_pages().

This is part a tree-wide conversion, as described in commit fc1d8e7cca2d
("mm: introduce put_user_page*(), placeholder versions").

Cc: David S. Miller <davem@...emloft.net>
Cc: Jonathan Helman <jonathan.helman@...cle.com>
Cc: Rob Gardner <rob.gardner@...cle.com>
Cc: Andy Shevchenko <andy.shevchenko@...il.com>
Cc: Jonathan Corbet <corbet@....net>
Cc: Wei Yongjun <weiyongjun1@...wei.com>
Cc: Mauro Carvalho Chehab <mchehab+samsung@...nel.org>
Cc: sparclinux@...r.kernel.org
Signed-off-by: John Hubbard <jhubbard@...dia.com>
---
 drivers/sbus/char/oradax.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/sbus/char/oradax.c b/drivers/sbus/char/oradax.c
index 8af216287a84..029e619992fc 100644
--- a/drivers/sbus/char/oradax.c
+++ b/drivers/sbus/char/oradax.c
@@ -412,7 +412,7 @@ static void dax_unlock_pages(struct dax_ctx *ctx, int ccb_index, int nelem)
 				dax_dbg("freeing page %p", p);
 				if (j == OUT)
 					set_page_dirty(p);
-				put_page(p);
+				put_user_page(p);
 				ctx->pages[i][j] = NULL;
 			}
 		}
-- 
2.22.0