New submission from Eike Fokken <[email protected]>:
Lets say, we have a btrfs partion with subvolumes @, mounted at /
and home, which was created directly inside @, such that after mounting @, it
can be found at /home.
Then
os.path.ismount("/home") returns True
I would not have expected that, because the program findmnt from the util-linux
software package doesn't list it if I run
findmnt -A
I think that the two programs should agree on whether it's a mount point or not
but am unsure whether findmnt or os.path.ismount should be altered because I
don't know a definite definition of a mountpoint.
Note that I agree with the current behaviour for explicitely mounted
subvolumes. An example would be if I have the subvolume @ mounted at / and a
subvolume @home created at the toplevel of the btrfs filesystem which is then
mounted at /home.
Here findmnt and os.path.ismount agree that this is a mount point.
----------
components: Library (Lib)
messages: 346035
nosy: eike
priority: normal
severity: normal
status: open
title: os.path.ismount returns true on nested btrfs subvolumes
type: behavior
versions: Python 3.7
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Python tracker <[email protected]>
<https://bugs.python.org/issue37339>
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