commit 2f8c6a592f4f91d24fed1dbb59c04ba2ca55d251 Author: Tomohiro Kusumi <kusumi.tomoh...@gmail.com> Date: Tue Mar 3 01:32:05 2015 +0900
sbin/hammer: Don't show irrelevant "BM" and "d" after root split - Make hammer show command suppress irrelevant outputs "BM NODE ..." and "d tids ..." after splitting the root node. - When splitting the root node HAMMER uses a copy of predefined special node element that has static member values (regardless of other nodes within the btree). After the split, this predefined special element will be elms[0] of the (new)root node that has a pointer to the old root node as its current child. - However this elms[0] always has 0 for internal.mirror_tid and 1 for base.delete_tid (till it's updated) which results hammer show command showing unnecessary "BM" and "d". This commit suppress "BM" that doesn't actually indicate invalid mirror tid, and suppress "d" that doesn't indicate actual delete as following diff of two results shows. 22c22 < d tids 0000000000000001:0000000000000001 suboff=8000000020800000 mirror 0000000000000000 --- > tids 0000000000000001:0000000000000001 suboff=8000000020800000 mirror 0000000000000000 46c46 < BM NODE 8000000020800000 cnt=43 p=8000000020801000 type=L depth=1 mirror 0000000100098160 fill=z8:65=1% { --- > NODE 8000000020800000 cnt=43 p=8000000020801000 type=L depth=1 mirror 0000000100098160 fill=z8:65=1% { Summary of changes: sbin/hammer/cmd_show.c | 44 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 35 insertions(+), 9 deletions(-) http://gitweb.dragonflybsd.org/dragonfly.git/commitdiff/2f8c6a592f4f91d24fed1dbb59c04ba2ca55d251 -- DragonFly BSD source repository