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SubjectRe: [PATCH v2] compat: fs: Generic compat_sys_sendfile implementation
Date
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 <catalin.marinas@arm.com>
> Acked-by: David S. Miller <davem@davemloft.net>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
> Cc: Paul Mackerras <paulus@samba.org>
> Cc: Alexander Viro <viro@zeniv.linux.org.uk>
> Cc: Andrew Morton <akpm@linux-foundation.org>

Acked-by: Arnd Bergmann <arnd@arndb.de>


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