hi, developers
we use ceph v0.30, kernel client 2.6.37
mount ceph on /mnt
$ mkdir /mnt/a
$ cd a
$ seq 10 | xargs -i mkdir {}
$ cd ..
$ rm -rf a
from the debug log of mds.we find
if we want remove one subdirectory in "a", we must execute readdir " a
" operation each time
so we need read dir "a" 10 times.
but in normal way, it should readdir "a" once, and remove all the
subdirectories if we use "rm -rf a".
we'd like to know how did ceph parse command "rm -rf " ?
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