These two patches address the issue of sending unneeded zero data for
disknr==0 and PREALLOC extents.
There is room for additional improvement for PREALLOC extents, but it
requires adding a new command, so for
now this is not addressed.
Please review and comment.
Thanks,
Alex.
Alex Lyakas (2):
Avoid sending disknr==0 extents in the following cases: 1) full
send 2) new inode in a diff-send 3) when disknr==0 extents are
added to the end of an inode
On a diff-send, avoid sending PREALLOC extents, if the parent root
has only PREALLOC extents on an appropriate file range.
fs/btrfs/send.c | 178 +++++++++++++++++++++++++++++++++++++++++++++++++++++--
1 file changed, 172 insertions(+), 6 deletions(-)
--
1.7.9.5
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