On Tue, Mar 24, 2009 at 05:16:40PM +0900, hooanon05@xxxxxxxxxxx wrote: > > Greg KH: > > No one disables sysfs that I know of. Heck, my phone enables sysfs... > > > > > Addition to set limit, there is one more reason to adopt seq_file. > > > Because the printed string is a path, it may contain unprintable > > > characters. seq_file has a good interface seq_path() which supports > > > escaping such characters. > > > > That is true. Ok, let's see the final result and I'll be glad to look > > at it. > > Hi Greg, > > Currently I am testing locally about new aufs entries under debugfs, and > I found a strange issue about configuration. > > First, configure "normaly". > General setup > [ ] Configure standard kernel features (for small systems) ---> > > $ egrep -i '(sysfs|debug_fs)' .config > CONFIG_SYSFS_DEPRECATED=y > CONFIG_SYSFS_DEPRECATED_V2=y You should disable those two options, no modern distro needs them anymore. > CONFIG_SYSFS=y > CONFIG_DEBUG_FS=y > # CONFIG_FAULT_INJECTION_DEBUG_FS is not set > > Next, enable EMBEDED, and then disable SYSFS. > General setup > [*] Configure standard kernel features (for small systems) ---> > File systems > Pseudo filesystems ---> > [ ] sysfs file system support > > $ egrep -i '(sysfs|debug_fs)' .config > # CONFIG_SYSFS is not set > CONFIG_DEBUG_FS=y > > SYSFS is disabled expectedly, but DEBUG_FS is still enabled, > while "depends on SYSFS" is specified for DEBUG_FS. > > Is this expected behaviour? > In other words, can I assume "when DEBUG_FS is enabled, SYSFS must be > enabled too" safely? Your code should not worry about either of these, it will "just work" either way. As for if there is a bug here, I don't know, the kbuild dependancies should fix it up if you run "make oldconfig" right? thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
