On Mon, Mar 18, 2013 at 12:42 PM, RS <tinyshrimp@163.com> wrote:

when a new unlike-Unix filesystem mounted on my Linux system , will it creat all the dentry objects in the meory , or will it creat only needed, and is the same to inode objects ? So , if all the dentry objects created , I think it must consume a large memory.

to the best I know, dentry is created only when it is accessed, be it native filesystem like ext2/3/4 or FUSE based etc. NB: IMHO you were referring to dcache and icache, because dentry and inode are the ones which reside on disk -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com