[dm-devel] [PATCH RESEND 1/2 block#for-linus] bio, fs: update READA and SWRITE to match the corresponding BIO_RW_* bits

[Christoph Hellwig]

On Fri, Aug 06, 2010 at 12:04:43PM +0800, Tao Ma wrote:
> >>Stable: The offending commit a82afdf was released with v2.6.32, so
> >>this patch should be applied to all kernels since then but it must
> >>_NOT_ be applied to kernels earlier than that.
> If only this patch goes into stable, do we need to change RWA_MASK
> in this patch also(I have seen you change it the 2/2)?
> 
> -#define RWA_MASK        2
> +#define RWA_MASK        16

I think RW_MASK and RWA_MASK should simply go away, they don't server
any use over just masking the correct REQ_* flags.