@@ -3608,6 +3608,23 @@ M: Jan-Simon Moeller <jansimon.moeller@gmx.de>
S: Maintained
F: drivers/leds/leds-blinkm.c
+BLOCK DEVICE FILTERING MECHANISM
+M: Sergei Shtepa <sergei.shtepa@linux.dev>
+L: linux-block@vger.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@linux.dev>
+L: linux-block@vger.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@kernel.dk>
L: linux-block@vger.kernel.org
@@ -404,4 +404,6 @@ config BLKDEV_UBLK_LEGACY_OPCODES
source "drivers/block/rnbd/Kconfig"
+source "drivers/block/blksnap/Kconfig"
+
endif # BLK_DEV
@@ -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-$(CONFIG_BLKSNAP) += blksnap/
new file mode 100644
@@ -0,0 +1,12 @@
+# SPDX-License-Identifier: GPL-2.0
+#
+# Snapshots of block devices configuration
+#
+
+config BLKSNAP
+ tristate "Snapshots of block devices (Experimental)"
+ help
+ Allow to create snapshots and track block changes for block devices.
+ It can be used to create backups of block devices. Snapshots are
+ temporary and are released when backup is completed. Change block
+ tracking allows to create incremental or differential backups.
new file mode 100644
@@ -0,0 +1,15 @@
+# SPDX-License-Identifier: GPL-2.0
+
+blksnap-y := \
+ cbt_map.o \
+ chunk.o \
+ diff_area.o \
+ diff_buffer.o \
+ diff_storage.o \
+ event_queue.o \
+ main.o \
+ snapimage.o \
+ snapshot.o \
+ tracker.o
+
+obj-$(CONFIG_BLKSNAP) += blksnap.o
Allows to build a blksnap module and add it to the kernel tree. Signed-off-by: Sergei Shtepa <sergei.shtepa@linux.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