On Fri, Jun 14, 2013 at 09:26:49AM +0800, majianpeng wrote: > Hi all, > I wanted to monitor /proc/partitions using inotify.
That, indeed, is a bug. Easily fixed - don't do that. > But when i call 'cat /proc/partitions',the program can't return. > So i added some message in kernel in order to find the reason. > In procfs for some files, the inode used this method to alloc. > proc_lookup-->proc_lookup_de--->proc_get_inode-->new_inode_pseudo > In new_inode_pseudo, it will alloc new inode so every open-operation procfs > will alloc new inode. > So inotify can't work. Of course, it can't work. Inotify if a kludge that kinda-sorta works for local disk-backed filesystems, if you do not mind a pile of races. For anything else it's completely worthless. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
