litmus-rt.git - The LITMUS^RT kernel.

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author	GeunSik Lim <leemgs1@gmail.com>	2009-05-27 21:36:11 -0400
committer	Ingo Molnar <mingo@elte.hu>	2009-05-29 10:21:08 -0400
commit	294ae4011530d008c59c4fb9847738e39228821e (patch)
tree	f34f000e0bc1066140bbbc090fa624cb96cfb44c /tools/perf/scripts/python/syscall-counts.py
parent	4200efd9acda4accf24640f1e77d24fdcdb524df (diff)

ftrace: fix typo about map of kernel priority in ftrace.txt file.

Fix typo about chart to map the kernel priority to user land priorities. * About sched_setscheduler(2) Processes scheduled under SCHED_FIFO or SCHED_RR can have a (user-space) static priority in the range 1 to 99. (reference: http://www.kernel.org/doc/man-pages/online/pages/ man2/sched_setscheduler.2.html) * From: Steven Rostedt 0 to 98 - maps to RT tasks 99 to 1 (SCHED_RR or SCHED_FIFO) 99 - maps to internal kernel threads that want to be lower than RT tasks but higher than SCHED_OTHER tasks. Although I'm not sure if any kernel thread actually uses this. I'm not even sure how this can be set, because the internal sched_setscheduler function does not allow for it. 100 to 139 - maps nice levels -20 to 19. These are not set via sched_setscheduler, but are set via the nice system call. 140 - reserved for idle tasks. Signed-off-by: GeunSik Lim <geunsik.lim@samsung.com> Acked-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> LKML-Reference: <new-submission> Signed-off-by: Ingo Molnar <mingo@elte.hu>

Diffstat (limited to 'tools/perf/scripts/python/syscall-counts.py')

0 files changed, 0 insertions, 0 deletions

/* * Persistent Storage - pstore.h * * Copyright (C) 2010 Intel Corporation <tony.luck@intel.com> * * This code is the generic layer to export data records from platform * level persistent storage via a file system. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #ifndef _LINUX_PSTORE_H #define _LINUX_PSTORE_H #include <linux/time.h> #include <linux/kmsg_dump.h> #include <linux/mutex.h> #include <linux/types.h> #include <linux/spinlock.h> #include <linux/errno.h> /* types */ enum pstore_type_id { PSTORE_TYPE_DMESG = 0, PSTORE_TYPE_MCE = 1, PSTORE_TYPE_CONSOLE = 2, PSTORE_TYPE_FTRACE = 3, PSTORE_TYPE_UNKNOWN = 255 }; struct module; struct pstore_info { struct module *owner; char *name; spinlock_t buf_lock; /* serialize access to 'buf' */ char *buf; size_t bufsize; struct mutex read_mutex; /* serialize open/read/close */ int (*open)(struct pstore_info *psi); int (*close)(struct pstore_info *psi); ssize_t (*read)(u64 *id, enum pstore_type_id *type, int *count, struct timespec *time, char **buf, struct pstore_info *psi); int (*write)(enum pstore_type_id type, enum kmsg_dump_reason reason, u64 *id, unsigned int part, int count, size_t size, struct pstore_info *psi); int (*write_buf)(enum pstore_type_id type, enum kmsg_dump_reason reason, u64 *id, unsigned int part, const char *buf, size_t size, struct pstore_info *psi); int (*erase)(enum pstore_type_id type, u64 id, int count, struct timespec time, struct pstore_info *psi); void *data; }; #ifdef CONFIG_PSTORE extern int pstore_register(struct pstore_info *); #else static inline int pstore_register(struct pstore_info *psi) { return -ENODEV; } #endif #endif /*_LINUX_PSTORE_H*/


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