/* * netsniff-ng - the packet sniffing beast * Copyright 2009, 2010 Daniel Borkmann. * Copyright 2010 Marek Polacek. * Subject to the GPL, version 2. */ #include #include "iosched.h" #include "die.h" #define IOPRIO_CLASS_SHIFT 13 enum { ioprio_class_none, ioprio_class_rt, ioprio_class_be, ioprio_class_idle, }; enum { ioprio_who_process = 1, ioprio_who_pgrp, ioprio_who_user, }; static const char *const to_prio[] = { "none", "realtime", "best-effort", "idle", }; static inline int ioprio_set(int which, int who, int ioprio) { return syscall(SYS_ioprio_set, which, who, ioprio); } static inline int ioprio_get(int which, int who) { return syscall(SYS_ioprio_get, which, who); } static void ioprio_setpid(pid_t pid, int ioprio, int ioclass) { int ret = ioprio_set(ioprio_who_process, pid, ioprio | ioclass << IOPRIO_CLASS_SHIFT); if (ret < 0) panic("Failed to set io prio for pid: %s\n", strerror(errno)); } void ioprio_print(void) { int ioprio = ioprio_get(ioprio_who_process, getpid()); if (ioprio < 0) panic("Failed to fetch io prio for pid!\n"); else { int ioclass = ioprio >> IOPRIO_CLASS_SHIFT; if (ioclass != ioprio_class_idle) { ioprio &= 0xff; printf("%s: prio %d\n", to_prio[ioclass], ioprio); } else printf("%s\n", to_prio[ioclass]); } } void set_ioprio_rt(void) { ioprio_setpid(getpid(), 4, ioprio_class_rt); } void set_ioprio_be(void) { ioprio_setpid(getpid(), 4, ioprio_class_be); } 'sub right'>Tobias Klauser

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Age	Commit message (Collapse)	Author	Files	Lines
2017-02-01	Merge tag 'wireless-drivers-next-for-davem-2017-02-01' of ↵	David S. Miller	2	-1/+2
	git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers-next patches for 4.11 It's nice to see rt2x00 development has becoming active, for example adding support for a new chip version. Also wcn36xx has been converted to use the recently merged QCOM_SMD subsystem. Otherwise new features and fixes it lots of drivers. Major changes: iwlwifi * some more work in preparation for A000 family support * add support for radiotap timestamps * some work on our firmware debugging capabilities wcn36xx * convert to a proper QCOM_SMD driver (from the platform_driver interface) ath10k * VHT160 support * dump Copy Engine registers during firmware crash * search board file extension from SMBIOS wil6210 * add disable_ap_sme module parameter rt2x00 * support RT3352 with external PA * support for RT3352 with 20MHz crystal * add support for RT5350 WiSoC brcmfmac * add support for BCM43455 sdio device rtl8xxxu * add support for D-Link DWA-131 rev E1, TP-Link TL-WN822N v4 and others ==================== Signed-off-by: David S. Miller <davem@davemloft.net>