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block: introduce backup-top filter driver
authorVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Tue, 1 Oct 2019 13:14:08 +0000 (16:14 +0300)
committerMax Reitz <mreitz@redhat.com>
Thu, 10 Oct 2019 08:56:18 +0000 (10:56 +0200)
commit7df7868b9640402c465eec93c8e0fa9fc2cf5744
tree23675a1b4202d4161fa4950623e8f06bb7bd5a46tree
parent0f4b02b73e71cb761bfedcef180c5f10812f2953commit | diff
block: introduce backup-top filter driver

Backup-top filter caches write operations and does copy-before-write
operations.

The driver will be used in backup instead of write-notifiers.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191001131409.14202-5-vsementsov@virtuozzo.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
block/Makefile.objs diff | blob | blame | history
block/backup-top.c [new file with mode: 0644] blob
block/backup-top.h [new file with mode: 0644] blob
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