The patch titled
DOC: update xip method info
has been added to the -mm tree. Its filename is
doc-update-xip-method-info.patch
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------------------------------------------------------
Subject: DOC: update xip method info
From: Marco Stornelli <marco.stornelli@xxxxxxxxx>
xip documentation updated:
- change "get_xip_page" to "get_xip_mem";
- explain changed function parameters
Signed-off-by: Marco Stornelli <marco.stornelli@xxxxxxxxx>
Signed-off-by: Randy Dunlap <randy.dunlap@xxxxxxxxxx>
Cc: Carsten Otte <cotte@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
Documentation/filesystems/xip.txt | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff -puN Documentation/filesystems/xip.txt~doc-update-xip-method-info Documentation/filesystems/xip.txt
--- a/Documentation/filesystems/xip.txt~doc-update-xip-method-info
+++ a/Documentation/filesystems/xip.txt
@@ -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 references
+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 third 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.
_
Patches currently in -mm which might be from marco.stornelli@xxxxxxxxx are
doc-update-xip-method-info.patch
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