I'm afraid we're not speaking about the same. I know SMB supports already inotify like calls (SMB Change request) but my question is whether netlink messages, about a inotify being set (or removed) on the cifs filesystem, is of any use to you. For FUSE fs's I'm experminting with this, in the way I described in my previous post. Stef 2011/12/24 Steve French <smfrench@xxxxxxxxx>: > Cifs (the protocol) supports inotify-like messages (the original concept was > invented for os2 and windows desktop guis to use smb/cifs to refresh remote > directory listings). With directory oplock added in Smb2.2 so > > On Dec 24, 2011 4:22 AM, "Stef Bon" <stefbon@xxxxxxxxx> wrote: >> >> Hi, >> >> earlier I mentioned here I'm working on the ability for filesystems >> like FUSE based, cifs and nfs. >> >> Recently I've created a patch for the kernel, which makes the calls >> inotify_add_watch and inotify_remove_watch >> send a message to userspace, containing (pid, fd, wd, [mask], [path]). >> >> (in case of add watch the values between [] are sent also, when remove >> not) >> >> My idea for a FUSE based fs is to listen to this messages (familiy >> GENERIC, group VFS_INOTIFY), >> filter messages out which do not apply (only those messages for the >> used mountpoint for fs) and then let the FUSE fs take proper action, >> which suits the backend. >> >> In case of a simple overlay fs, this means that it sets watch on the >> underlying fs, and send change events (which fits the mask) to the >> kernel. Recent FUSE versions have calls added which can notify the >> kernel about a change, without the need of a related request, like >> getattr, open, lookup etc. >> The fs has to remove this/stop this when a remove watch message is >> received. A proper adiminstration of current watches set is required. >> >> >> Can this also work for cifs?? I always thought that cifs is just like >> FUSE in userspace, but that isn't the case is it? >> >> Stef >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-cifs" in >> the body of a message to majordomo@xxxxxxxxxxxxxxx >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-cifs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
