'xfs_uuid_table' allocated in xfs_uuid_mount() is never freed
Quoted 11 lines · On Tue, May 20, 2014 at 04:01:20AM +0000, [email protected]…
https://bugzilla.kernel.org/show_bug.cgi?id=48651
--- Comment #2 from Eric Sandeen <[email protected]> --- Freeing it when the module is unloaded should be sufficient.In normal use, unmounting a filesystem creates a hole in the table, which the next mount can fill.
If you mount a lot of unique UUID filesystems without unmounting any in between, the table will grow accordingly, and unmounting won't shrink it - i.e. the table only grows as the number of concurrently mounted filesystem grows, but that doesn't seem like a particularly critical problem to fix.
If anyonereally cares about this he or she should just kill the uuid table entirely. We can simple walk a list of mounted xfs filesystems and check their uuids. The VFS even keeps a list already, which we probably could use if we are careful.
Bonus points for implementing this in a way so that other filesystems could share the code.
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