22.06.2023 17:03, Jeff Layton пишет:
We need to be pedantic for manpages. A "file description" is the representation of the open file in the kernel (basically, the "struct file" in the kernel). A file _descriptor_ is the numeric identifier returned by open() and similar functions.
The locks are owned by the file description, so that would be the better term to use here. I think you want something like: "When the l_type is set to F_UNLCK, returned locks are limited to ones set on the given file description.
This is also inaccurate, because "limited" implies other operations act widely. But actually other operations do not consider the "same fd" at all. So the reported sets by F_UNLCK and other ops do not overlap. Which is why I decided to describe it as a "special meaning".