Robert Watson wrote: >> If someone knows the details of vnode's lock status via >> VOP_GETWRITEMOUNT, Please teach us (daichi, ozawa). We >> want to know the details. > > Basically, file systems supporting full file system snapshots (UFS) Oh thanks rwatson! It is very useful. Thank you very much :) -- Daichi GOTO, http://people.freebsd.org/~daichi