Re: [PATCH 1/3] hugetlbfs: Allow the creation of files suitable forMAP_PRIVATE on the vfs internal mount

From: David Rientjes
Date: Wed Aug 26 2009 - 15:34:31 EST

On Tue, 25 Aug 2009, Eric B Munson wrote:

> There are two means of creating mappings backed by huge pages:
> 1. mmap() a file created on hugetlbfs
> 2. Use shm which creates a file on an internal mount which essentially
> maps it MAP_SHARED
> The internal mount is only used for shared mappings but there is very
> little that stops it being used for private mappings. This patch extends
> hugetlbfs_file_setup() to deal with the creation of files that will be
> mapped MAP_PRIVATE on the internal hugetlbfs mount. This extended API is
> used in a subsequent patch to implement the MAP_HUGETLB mmap() flag.
> Signed-off-by: Eric Munson <ebmunson@xxxxxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
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