linux-kernel - [PATCH v7 8/8] block: Kconfig, Makefile and MAINTAINERS files

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Message-Id: <20240209160204.1471421-9-sergei.shtepa@linux.dev>
Date: Fri,  9 Feb 2024 17:02:04 +0100
From: Sergei Shtepa <sergei.shtepa@...ux.dev>
To: axboe@...nel.dk,
	hch@...radead.org,
	corbet@....net,
	snitzer@...nel.org
Cc: linux-block@...r.kernel.org,
	linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-fsdevel@...r.kernel.org
Subject: [PATCH v7 8/8] block: Kconfig, Makefile and MAINTAINERS files

Allows to build a blksnap module and add it to the kernel tree.

Signed-off-by: Sergei Shtepa <sergei.shtepa@...ux.dev>
---
 MAINTAINERS                    | 17 +++++++++++++++++
 drivers/block/Kconfig          |  2 ++
 drivers/block/Makefile         |  2 ++
 drivers/block/blksnap/Kconfig  | 12 ++++++++++++
 drivers/block/blksnap/Makefile | 15 +++++++++++++++
 5 files changed, 48 insertions(+)
 create mode 100644 drivers/block/blksnap/Kconfig
 create mode 100644 drivers/block/blksnap/Makefile

diff --git a/MAINTAINERS b/MAINTAINERS
index 960512bec428..fc95d3e1fd66 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3608,6 +3608,23 @@ M:	Jan-Simon Moeller <jansimon.moeller@....de>
 S:	Maintained
 F:	drivers/leds/leds-blinkm.c
 
+BLOCK DEVICE FILTERING MECHANISM
+M:	Sergei Shtepa <sergei.shtepa@...ux.dev>
+L:	linux-block@...r.kernel.org
+S:	Supported
+F:	Documentation/block/blkfilter.rst
+F:	block/blk-filter.c
+F:	include/linux/blk-filter.h
+F:	include/uapi/linux/blk-filter.h
+
+BLOCK DEVICE SNAPSHOTS MODULE
+M:	Sergei Shtepa <sergei.shtepa@...ux.dev>
+L:	linux-block@...r.kernel.org
+S:	Supported
+F:	Documentation/block/blksnap.rst
+F:	drivers/block/blksnap/*
+F:	include/uapi/linux/blksnap.h
+
 BLOCK LAYER
 M:	Jens Axboe <axboe@...nel.dk>
 L:	linux-block@...r.kernel.org
diff --git a/drivers/block/Kconfig b/drivers/block/Kconfig
index 5b9d4aaebb81..74d2d55526a3 100644
--- a/drivers/block/Kconfig
+++ b/drivers/block/Kconfig
@@ -404,4 +404,6 @@ config BLKDEV_UBLK_LEGACY_OPCODES
 
 source "drivers/block/rnbd/Kconfig"
 
+source "drivers/block/blksnap/Kconfig"
+
 endif # BLK_DEV
diff --git a/drivers/block/Makefile b/drivers/block/Makefile
index 101612cba303..9a2a9a56a247 100644
--- a/drivers/block/Makefile
+++ b/drivers/block/Makefile
@@ -40,3 +40,5 @@ obj-$(CONFIG_BLK_DEV_NULL_BLK)	+= null_blk/
 obj-$(CONFIG_BLK_DEV_UBLK)			+= ublk_drv.o
 
 swim_mod-y	:= swim.o swim_asm.o
+
+obj-$(CONFIG_BLKSNAP) += blksnap/
diff --git a/drivers/block/blksnap/Kconfig b/drivers/block/blksnap/Kconfig
new file mode 100644
index 000000000000..ce3e33d52c71
--- /dev/null
+++ b/drivers/block/blksnap/Kconfig
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Snapshots of block devices configuration
+#
+
+config BLKSNAP
+	tristate "Snapshots of block devices (Experimental)"
+	help
+	  Allow to create snapshots and track block changes for block devices.
+	  It can be used to create backups of block devices. Snapshots are
+	  temporary and are released when backup is completed. Change block
+	  tracking allows to create incremental or differential backups.
diff --git a/drivers/block/blksnap/Makefile b/drivers/block/blksnap/Makefile
new file mode 100644
index 000000000000..8d528b95579a
--- /dev/null
+++ b/drivers/block/blksnap/Makefile
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+
+blksnap-y := 		\
+	cbt_map.o	\
+	chunk.o		\
+	diff_area.o	\
+	diff_buffer.o	\
+	diff_storage.o	\
+	event_queue.o	\
+	main.o		\
+	snapimage.o	\
+	snapshot.o	\
+	tracker.o
+
+obj-$(CONFIG_BLKSNAP)	 += blksnap.o
-- 
2.34.1