On Fri, 23 May 2014, David Herrmann wrote:
>
> i_mmap_mutex is the only per-object lock that is taken in the mmap()
> path and all vma_link() users can easily be changed to deal with
> errors. So I think it should be easy to make __vma_link_file() fail if
> no writable mappings are allowed. Testin
Hi Hugh
Thanks for the review! Looks all good, few comments inline in case I
didn't agree. Everything else I didn't comment on is fixed in my tree.
On Tue, May 20, 2014 at 4:16 AM, Hugh Dickins wrote:
> On Tue, 15 Apr 2014, David Herrmann wrote:
>> diff --git a/include/linux/shmem_fs.h b/include
On Tue, 15 Apr 2014, David Herrmann wrote:
> If two processes share a common memory region, they usually want some
> guarantees to allow safe access. This often includes:
> - one side cannot overwrite data while the other reads it
> - one side cannot shrink the buffer while the other accesses
If two processes share a common memory region, they usually want some
guarantees to allow safe access. This often includes:
- one side cannot overwrite data while the other reads it
- one side cannot shrink the buffer while the other accesses it
- one side cannot grow the buffer beyond previo
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