tree 9edd781b00784cd4f178e44d684c5ab4092cd551
parent 55731b3cda3a85ee888dac3bf1f36489f275c187
author Dominik Brodowski <linux@dominikbrodowski.net> 1520764494 +0100
committer Dominik Brodowski <linux@dominikbrodowski.net> 1522692960 +0200

fs: add ksys_ftruncate() wrapper; remove in-kernel calls to sys_ftruncate()

Using the ksys_ftruncate() wrapper allows us to get rid of in-kernel
calls to the sys_ftruncate() syscall. The ksys_ prefix denotes that this
function is meant as a drop-in replacement for the syscall. In
particular, it uses the same calling convention as sys_ftruncate().

This patch is part of a series which removes in-kernel calls to syscalls.
On this basis, the syscall entry path can be streamlined. For details, see
http://lkml.kernel.org/r/20180325162527.GA17492@light.dominikbrodowski.net

Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>