于 2013年12月15日 21:28, Jean-Pierre André 写道: > Zorro Lang wrote: >> 于 2013年12月15日 02:21, Jean-Pierre André 写道: >>> Hi, >>>>> >>>>> >>>> The ctime changed by linux VFS, so all linux local filesystem must >>>> update the ctime. But some fs with FUSE maybe update or not update >>>> the ctime. >>> >>> Actually not, I have checked again. Fuse does not >>> call the file system when uid == gid == -1, so the >>> file system cannot update the ctime. >> Yeah, I have talked about it at previous email, the FUSE in kernel >> will not set the UID and GID attr flag bits when chown(-1,-1), then >> the FUSE fs maybe not call the real chown according the attr flag >> bits from kernel, so the ctime will not be changed. >> But I think we can't say FUSE fs will never update the ctime when >> chown(-1, -1). The behavior of FUSE fs depend on their respective >> implement in userspace. >> The glusterfs is a FUSE fs, and it update the ctime when I test in >> version "3.4.0.40rhs-2.el7.x86_64". >> > > Actually this depends on the fuse interface you use. > with chown(-1,-1), the low fuse interface calls the > file system with no flags indicating anything to do, > which the file system can interpret as updating the > ctime nevertheless. > > But when using the high fuse interface, the fuse > library makes no call at all when there is no flag set. Yes, you are right, I know that. I think the high fuse interface which you mean is fuse, fuse-libs and fuse-devel-libs packages. The glusterfs not use the high interface, he use the low:)
Thank you, Zorro Lang > > Regards > > Jean-Pierre > > ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349831&iu=/4140/ostg.clktrk _______________________________________________ ntfs-3g-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ntfs-3g-devel
