Messages in this thread Patch in this message | | | Date | Tue, 23 Sep 2008 13:49:29 +0200 | From | Marco Stornelli <> | Subject | Re: [PATCH] documentation: xip documentation update |
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From: Marco Stornelli <marco.stornelli@gmail.com>
Fix xip documentation with the comments of Randy Dunlap. Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> ---
--- linux-2.6.26.3/Documentation/filesystems/xip.txt.orig 2008-08-20 20:11:37.000000000 +0200 +++ linux-2.6.26.3/Documentation/filesystems/xip.txt 2008-09-23 13:45:42.000000000 +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.
Randy Dunlap ha scritto: > On Mon, 22 Sep 2008 11:37:52 +0200 Marco Stornelli wrote: > >> From: Marco Stornelli <marco.stornelli@gmail.com> >> >> xip documentation updated >> Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com> >> --- >> >> --- linux-2.6.26.5/Documentation/filesystems/xip.txt.orig 2008-08-20 20:11:37.000000000 +0200 >> +++ linux-2.6.26.5/Documentation/filesystems/xip.txt 2008-09-22 11:27:46.000000000 +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 is in charge to assign values to > > How about: > This function assigns values to the kmem and > pfn parameters. > >> +the pointers kmem and pfn. 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. > > > Thanks. > > --- > ~Randy >
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