[Devel] Re: [RFC v14-rc2][PATCH 22/29] Restore anonymous- and file-mapped- shared memory

Serge E. Hallyn serue at us.ibm.com
Thu Apr 2 09:59:50 PDT 2009


Quoting Oren Laadan (orenl at cs.columbia.edu):
> The bulk of the work is in cr_read_vma(), which has been refactored:
> the part that create the suitable 'struct file *' for the mapping is
> now larger and moved to a separate function. What's left is to read
> the VMA description, get the file pointer, create the mapping, and
> proceed to read the contents in.
> 
> Both anonymous shared VMAs that have been read earlier (as indicated
> by a look up to objhash) and file-mapped shared VMAs are skipped.
> Anonymous shared VMAs seen for the first time have their contents
> read in directly to the backing inode, as indexed by the page numbers
> (as opposed to virtual addresses).
> 
> Changelog[v14]:
>   - Introduce patch
> 
> Signed-off-by: Oren Laadan <orenl at cs.columbia.edu>

Acked-by: Serge Hallyn <serue at us.ibm.com>

thanks,
-serge
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