On 8/29/09, Florian Zumbiehl <florz@xxxxxxxx> wrote: > Hi, > > as it's quite a bit of effort to actually verify this without much > knowlegde about the structure of udev: Could it happen that > util_create_path() and util_delete_path() do run in parallel for > the same directory? After all, util_create_path() does handle > the case where creation of the directory happens in parallel > to it running, so it doesn't seem all that unlikely to me ... > > Florian Events on the same device are serialized. So you never have an "add" event running in parallel with a "remove" event for the same device. That covers most cases, but there might be an exception. Consider two CHANGE events running in parallel. Changes to symlinks are recorded under /dev/.udev/names. If the CHANGE events cause one symlink to be removed, and a new symlink to be created with the same name, I think you would get simultaneous calls to delete_path() and create_path(). Alan -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
