Hi,
In the subfsal framework, I see that subfsals can have their own
fsal_obj_handles by implementing vfs_sub_alloc_handle and then use subfsal
specific variables using container_of.
It does not provide same functionality for fsal_export however. There is no
vfs_sub_alloc_export. vfs_create_export just calls gsh_calloc to allocate
vfs_fsal_export, giving no flexibility.
PANFS has its own struct panfs_fsal_export but it is not allocated
anywhere. It still uses container_of on vfs_fsal_export. This looks like a
memory corruption. The last commit in PANFS however is about a year back,
not sure if it is actively developed.
Considering the above scenario, it makes sense to have vfs_sub_alloc_export
to allow allocating the wrapper export object. Any thoughts?
Thanks,
Sriram
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