linux-kernel - [PATCH RFC 4/4] dev_dax_iomap: Add CONFIG_DEV_DAX

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Message-ID: <0100018c40f105c7-7e0d722c-4602-4956-8c3a-52f693e97e7c-000000@email.amazonses.com>
Date:   Wed, 6 Dec 2023 21:03:06 +0000
From:   John Groves <john@...alactic.com>
To:     Dan Williams <dan.j.williams@...el.com>,
        John Groves <jgroves@...ron.com>,
        John Groves <john@...alactic.com>
Cc:     Vishal Verma <vishal.l.verma@...el.com>,
        Dave Jiang <dave.jiang@...el.com>,
        nvdimm@...ts.linux.dev 
        <nvdimm@...ts.linux.dev>,
        linux-cxl@...r.kernel.org 
        <linux-cxl@...r.kernel.org>,
        linux-kernel@...r.kernel.org 
        <linux-kernel@...r.kernel.org>,
        linux-fsdevel@...r.kernel.org 
        <linux-fsdevel@...r.kernel.org>,
        John Groves <john@...ves.net>
Subject: [PATCH RFC 4/4] dev_dax_iomap: Add CONFIG_DEV_DAX_IOMAP kernel build
 parameter

From: John Groves <john@...ves.net>

Add CONFIG_DEV_DAXIOMAP kernel build parameter
---
 drivers/dax/Kconfig | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig
index a88744244149..b1ebcc77120b 100644
--- a/drivers/dax/Kconfig
+++ b/drivers/dax/Kconfig
@@ -78,4 +78,10 @@ config DEV_DAX_KMEM
 
 	  Say N if unsure.
 
+config DEV_DAX_IOMAP
+       depends on DEV_DAX && DAX
+       def_bool y
+       help
+         Support iomap mapping of devdax devices (for FS-DAX file
+         systems that reside on character /dev/dax devices)
 endif
-- 
2.40.1