Re: [AF_RXRPC]: Make the in-kernel AFS filesystem use AF_RXRPC.

From: Linus Torvalds
Date: Tue May 01 2007 - 12:23:45 EST




On Tue, 1 May 2007, Geert Uytterhoeven wrote:
>
> This causes a compile failure on m68k:
>
> | linux/fs/afs/fsclient.c: In function 'afs_deliver_fs_fetch_data':
> | linux/fs/afs/fsclient.c:269: warning: dereferencing 'void *' pointer
> | linux/fs/afs/fsclient.c:269: error: request for member 'virtual' in something not a structure or union
>
> Probably you wanted to assign call->reply3 to a struct page pointer first, like you do for the call->unmarshall == 2 case.

Hmm. Wouldn't it be nicer to make "kmap_atomic()" be an inline function
instead? That way, if you pass it a "void *", it still just works, and you
get a much nicer/more readable error message too when the types actually
don't match?

Of course, there may be some reason why <linux/highmem.h> does those with
#define's rather than inline functions. Maybe "page_address()" or
"pagefault_disabled()" is not declared at that point, and asking it to be
declared might cause header file inclusion recursion?

Linus
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