On Wednesday 19 September 2012, Catalin Marinas wrote:
> 
> This function is used by sparc, powerpc and arm64 for compat support.
> The patch adds a generic implementation which calls do_sendfile()
> directly and avoids set_fs().
> 
> The sparc architecture has wrappers for the sign extensions while
> powerpc relies on the compiler to do the this. The patch adds wrappers
> for powerpc to handle the u32->int type conversion.
> 
> compat_sys_sendfile64() can be replaced by a sys_sendfile() call since
> compat_loff_t has the same size as off_t on a 64-bit system.
> 
> On powerpc, the patch also changes the 64-bit sendfile call from
> sys_sendile64 to sys_sendfile.
> 
> Signed-off-by: Catalin Marinas <[email protected]>
> Acked-by: David S. Miller <[email protected]>
> Cc: Arnd Bergmann <[email protected]>
> Cc: Benjamin Herrenschmidt <[email protected]>
> Cc: Paul Mackerras <[email protected]>
> Cc: Alexander Viro <[email protected]>
> Cc: Andrew Morton <[email protected]>

Acked-by: Arnd Bergmann <[email protected]>
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