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(parent: 174edb0) | patch
xfs: reflink extents from one file to another
authorDarrick J. Wong <darrick.wong@oracle.com>
Mon, 3 Oct 2016 16:11:40 +0000 (09:11 -0700)
committerDarrick J. Wong <darrick.wong@oracle.com>
Wed, 5 Oct 2016 23:26:05 +0000 (16:26 -0700)
commit862bb360ef569f625bcf700ae4b162a9c8fa9bba
treed643c7e7bb8850a33a74cfc8051bda55620b5265tree | snapshot
parent174edb0e46e520230791a1a894397b7c824cefc4commit | diff
xfs: reflink extents from one file to another

Reflink extents from one file to another; that is to say, iteratively
remove the mappings from the destination file, copy the mappings from
the source file to the destination file, and increment the reference
count of all the blocks that got remapped.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
fs/xfs/xfs_reflink.c diff | blob | history
fs/xfs/xfs_reflink.h diff | blob | history
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