Hi, Alex The patches can only solve part of questions, but some like "punch holes" problems as Alexander wrote are still unsolved. So I think these patches are unnecessary if adding new command would help to solve all the questions.
Chen. On 2013-1-9 4:11, Alex Lyakas wrote: > 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 > -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
