Hi
The commit 4c39529663b93165953ecf9b1a9ea817358dcd06 ("slab: Warn on
duplicate cache names when DEBUG_VM=y") is causing large number of
warnings about "dm_bufio_buffer", "dm_bufio_buffer-%u" (and other) device
mapper caches.
I'd like to ask - how to properly fix it?
We create a "dm_bufio_buffer" or "dm_bufio_buffer-%u" cache with every dm
bufio client. It used to work (and the duplicate caches are merged), but
now it warns.
Should I append a pointer to the dm_bufio structure to the slab cache name
to make them different? Or is there any other preferred solution?
Note that it is not possible to pre-create the cache "dm_bufio_buffer-%u"
in the module's init function, because the size of per-buffer auxiliary
data is not known at this point.
Mikulas
