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Re: diskfs_catch_exception
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From: |
Neal H. Walfield |
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Subject: |
Re: diskfs_catch_exception |
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Date: |
09 Dec 2002 15:38:40 -0500 |
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User-agent: |
Gnus/5.0808 (Gnus v5.8.8) Emacs/21.2 |
> 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.