restrict mapping /dev/zero to only eina files having a sigbus
reported. the mmap was before all our file access used eina_file i
think thus the raw mmap of it. now walk all eina files and find the
candidate and only then if it exists flag is as having a faulty i/o
backing and map the zerto pages then return, otherwise call abort.
more restricted mapping and perhaps a fix for not trapping non-efl
issues.
@fix
I believe this function is not required and should not be
used by applications. If there is a very good use case to
use your own main freeq, then the API could be added again.
For now, removing the set() is probably the safer option.
Note: the API was introduced in the upcoming 1.19