From a095315b3c31f7a419baceac82c26c3c5ac0cd12 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Tue, 9 Jun 2015 14:27:33 +0200 Subject: build-sys: split internal basic/ library from shared/ basic/ can be used by everything cannot use anything outside of basic/ libsystemd/ can use basic/ cannot use shared/ shared/ can use libsystemd/ --- src/shared/ioprio.h | 55 ----------------------------------------------------- 1 file changed, 55 deletions(-) delete mode 100644 src/shared/ioprio.h (limited to 'src/shared/ioprio.h') diff --git a/src/shared/ioprio.h b/src/shared/ioprio.h deleted file mode 100644 index e5c71d0043..0000000000 --- a/src/shared/ioprio.h +++ /dev/null @@ -1,55 +0,0 @@ -#ifndef IOPRIO_H -#define IOPRIO_H - -/* This is minimal version of Linux' linux/ioprio.h header file, which - * is licensed GPL2 */ - -#include -#include - -/* - * Gives us 8 prio classes with 13-bits of data for each class - */ -#define IOPRIO_BITS (16) -#define IOPRIO_CLASS_SHIFT (13) -#define IOPRIO_PRIO_MASK ((1UL << IOPRIO_CLASS_SHIFT) - 1) - -#define IOPRIO_PRIO_CLASS(mask) ((mask) >> IOPRIO_CLASS_SHIFT) -#define IOPRIO_PRIO_DATA(mask) ((mask) & IOPRIO_PRIO_MASK) -#define IOPRIO_PRIO_VALUE(class, data) (((class) << IOPRIO_CLASS_SHIFT) | data) - -#define ioprio_valid(mask) (IOPRIO_PRIO_CLASS((mask)) != IOPRIO_CLASS_NONE) - -/* - * These are the io priority groups as implemented by CFQ. RT is the realtime - * class, it always gets premium service. BE is the best-effort scheduling - * class, the default for any process. IDLE is the idle scheduling class, it - * is only served when no one else is using the disk. - */ -enum { - IOPRIO_CLASS_NONE, - IOPRIO_CLASS_RT, - IOPRIO_CLASS_BE, - IOPRIO_CLASS_IDLE, -}; - -/* - * 8 best effort priority levels are supported - */ -#define IOPRIO_BE_NR (8) - -enum { - IOPRIO_WHO_PROCESS = 1, - IOPRIO_WHO_PGRP, - IOPRIO_WHO_USER, -}; - -static inline int ioprio_set(int which, int who, int ioprio) { - return syscall(__NR_ioprio_set, which, who, ioprio); -} - -static inline int ioprio_get(int which, int who) { - return syscall(__NR_ioprio_get, which, who); -} - -#endif -- cgit v1.2.3-54-g00ecf