Messages in this thread Patch in this message | | | Date | Thu, 06 Nov 2008 16:33:16 +0100 | From | Marco Stornelli <> | Subject | [PATCH] [RESEND] documentation: xip documentation update |
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From: Marco Stornelli <marco.stornelli@gmail.com>
xip documentation updated Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> ---
--- a/Documentation/filesystems/xip.txt.orig 2008-08-20 20:11:37.000000000 +0200 +++ b/Documentation/filesystems/xip.txt 2008-11-06 12:47:48.000000000 +0200 @@ -39,10 +39,11 @@ The block device operation is optional, today: - dcssblk: s390 dcss block device driver -An address space operation named get_xip_page is used to retrieve reference -to a struct page. To address the target page, a reference to an address_space, -and a sector number is provided. A 3rd argument indicates whether the -function should allocate blocks if needed. +An address space operation named get_xip_mem is used to retrieve reference +to a page frame number and a kernel address. To obtain these values a reference +to an address_space is provided. This function assigns values to the kmem and +pfn parameters. The 3rd argument indicates whether the function should allocate +blocks if needed. This address space operation is mutually exclusive with readpage&writepage that do page cache read/write operations.
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