> File system pagers are never mapped into the filesystem address space.  The
> filesystem pagers exist solely for user mappings, and for read/write
> operations via pager_memcpy (see libdiskfs/rdwr-internal.c).  As there is no
> mapping, there is no need to protect against signals when accessing
> them.

_diskfs_rdwr_internal creates mappings (via pager_memcpy) of file
pagers.  It also use a preemptor.


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