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Implementation of block cloning for ZFS

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Block Cloning allows to manually clone a file (or a subset of its
blocks) into another (or the same) file by just creating additional
references to the data blocks without copying the data itself.
Those references are kept in the Block Reference Tables (BRTs).

The whole design of block cloning is documented in module/zfs/brt.c.

Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Christian Schwarz <christian.schwarz@nutanix.com>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reviewed-by: Rich Ercolani <rincebrain@gmail.com>
Signed-off-by: Pawel Jakub Dawidek <pawel@dawidek.net>
Closes #13392
This commit is contained in:
Pawel Jakub Dawidek
2023-03-10 20:59:53 +01:00
committed by GitHub
parent da19d919a8
commit 67a1b03791
51 changed files with 3480 additions and 120 deletions
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lib/libzpool/Makefile.am
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@@ -74,6 +74,7 @@ nodist_libzpool_la_SOURCES = \
module/zfs/bptree.c \
module/zfs/bqueue.c \
module/zfs/btree.c \
module/zfs/brt.c \
module/zfs/dbuf.c \
module/zfs/dbuf_stats.c \
module/zfs/ddt.c \