0 File not found. # sazD +fS/* SPDX-License-Identifier: GPL-2.0-or-later */ /* Syslog internals * * Copyright 2010 Canonical, Ltd. * Author: Kees Cook */ #ifndef _LINUX_SYSLOG_H #define _LINUX_SYSLOG_H /* Close the log. Currently a NOP. */ #define SYSLOG_ACTION_CLOSE 0 /* Open the log. Currently a NOP. */ #define SYSLOG_ACTION_OPEN 1 /* Read from the log. */ #define SYSLOG_ACTION_READ 2 /* Read all messages remaining in the ring buffer. */ #define SYSLOG_ACTION_READ_ALL 3 /* Read and clear all messages remaining in the ring buffer */ #define SYSLOG_ACTION_READ_CLEAR 4 /* Clear ring buffer. */ #define SYSLOG_ACTION_CLEAR 5 /* Disable printk's to console */ #define SYSLOG_ACTION_CONSOLE_OFF 6 /* Enable printk's to console */ #define SYSLOG_ACTION_CONSOLE_ON 7 /* Set level of messages printed to console */ #define SYSLOG_ACTION_CONSOLE_LEVEL 8 /* Return number of unread characters in the log buffer */ #define SYSLOG_ACTION_SIZE_UNREAD 9 /* Return size of the log buffer */ #define SYSLOG_ACTION_SIZE_BUFFER 10 #define SYSLOG_FROM_READER 0 #define SYSLOG_FROM_PROC 1 int do_syslog(int type, char __user *buf, int count, int source); #endif /* _LINUX_SYSLOG_H */  ^|?ľ?/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _LINUX_WAIT_BIT_H #define _LINUX_WAIT_BIT_H /* * Linux wait-bit related types and methods: */ #include struct wait_bit_key { unsigned long *flags; int bit_nr; unsigned long timeout; }; struct wait_bit_queue_entry { struct wait_bit_key key; struct wait_queue_entry wq_entry; }; #define __WAIT_BIT_KEY_INITIALIZER(word, bit) \ { .flags = word, .bit_nr = bit, } typedef int wait_bit_action_f(struct wait_bit_key *key, int mode); void __wake_up_bit(struct wait_queue_head *wq_head, unsigned long *word, int bit); int __wait_on_bit(struct wait_queue_head *wq_head, struct wait_bit_queue_entry *wbq_entry, wait_bit_action_f *action, unsigned int mode); int __wait_on_bit_lock(struct wait_queue_head *wq_head, struct wait_bit_queue_entry *wbq_entry, wait_bit_action_f *action, unsigned int mode); void wake_up_bit(unsigned long *word, int bit); int out_of_line_wait_on_bit(unsigned long *word, int, wait_bit_action_f *action, unsigned int mode); int out_of_line_wait_on_bit_timeout(unsigned long *word, int, wait_bit_action_f *action, unsigned int mode, unsigned long timeout); int out_of_line_wait_on_bit_lock(unsigned long *word, int, wait_bit_action_f *action, unsigned int mode); struct wait_queue_head *bit_waitqueue(unsigned long *word, int bit); extern void __init wait_bit_init(void); int wake_bit_function(struct wait_queue_entry *wq_entry, unsigned mode, int sync, void *key); #define DEFINE_WAIT_BIT(name, word, bit) \ struct wait_bit_queue_entry name = { \ .key = __WAIT_BIT_KEY_INITIALIZER(word, bit), \ .wq_entry = { \ .private = current, \ .func = wake_bit_function, \ .entry = \ LIST_HEAD_INIT((name).wq_entry.entry), \ }, \ } extern int bit_wait(struct wait_bit_key *key, int mode); extern int bit_wait_io(struct wait_bit_key *key, int mode); extern int bit_wait_timeout(struct wait_bit_key *key, int mode); /** * wait_on_bit - wait for a bit to be cleared * @word: the address containing the bit being waited on * @bit: the bit at that address being waited on * @mode: the task state to sleep in * * Wait for the given bit in an unsigned long or bitmap (see DECLARE_BITMAP()) * to be cleared. The clearing of the bit must be signalled with * wake_up_bit(), often as clear_and_wake_up_bit(). * * The process will wait on a waitqueue selected by hash from a shared * pool. It will only be woken on a wake_up for the target bit, even * if other processes on the same queue are waiting for other bits. * * Returned value will be zero if the bit was cleared in which case the * call has ACQUIRE semantics, or %-EINTR if the process receive