/* * Copyright (c) 2000-2003,2005 Silicon Graphics, Inc. * All Rights Reserved. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would 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 the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include "debug.h" #include "spin.h" #include <asm/page.h> #include <linux/sched.h> #include <linux/kernel.h> static char message[256]; /* keep it off the stack */ static DEFINE_SPINLOCK(xfs_err_lock); /* Translate from CE_FOO to KERN_FOO, err_level(CE_FOO) == KERN_FOO */ #define XFS_MAX_ERR_LEVEL 7 #define XFS_ERR_MASK ((1 << 3) - 1) static char *err_level[XFS_MAX_ERR_LEVEL+1] = {KERN_EMERG, KERN_ALERT, KERN_CRIT, KERN_ERR, KERN_WARNING, KERN_NOTICE, KERN_INFO, KERN_DEBUG}; void assfail(char *a, char *f, int l) { printk("XFS assertion failed: %s, file: %s, line: %d\n", a, f, l); BUG(); } #if ((defined(DEBUG) || defined(INDUCE_IO_ERRROR)) && !defined(NO_WANT_RANDOM)) unsigned long random(void) { static unsigned long RandomValue = 1; /* cycles pseudo-randomly through all values between 1 and 2^31 - 2 */ register long rv = RandomValue; register long lo; register long hi; hi = rv / 127773; lo = rv % 127773; rv = 16807 * lo - 2836 * hi; if( rv <= 0 ) rv += 2147483647; return( RandomValue = rv ); } int get_thread_id(void) { return current->pid; } #endif /* DEBUG || INDUCE_IO_ERRROR || !NO_WANT_RANDOM */ void cmn_err(register int level, char *fmt, ...) { char *fp = fmt; int len; ulong flags; va_list ap; level &= XFS_ERR_MASK; if (level > XFS_MAX_ERR_LEVEL) level = XFS_MAX_ERR_LEVEL; spin_lock_irqsave(&xfs_err_lock,flags); va_start(ap, fmt); if (*fmt == '!') fp++; len = vsprintf(message, fp, ap); if (message[len-1] != '\n') strcat(message, "\n"); printk("%s%s", err_level[level], message); va_end(ap); spin_unlock_irqrestore(&xfs_err_lock,flags); if (level == CE_PANIC) BUG(); } void icmn_err(register int level, char *fmt, va_list ap) { ulong flags; int len; level &= XFS_ERR_MASK; if(level > XFS_MAX_ERR_LEVEL) level = XFS_MAX_ERR_LEVEL; spin_lock_irqsave(&xfs_err_lock,flags); len = vsprintf(message, fmt, ap); if (message[len-1] != '\n') strcat(message, "\n"); spin_unlock_irqrestore(&xfs_err_lock,flags); printk("%s%s", err_level[level], message); if (level == CE_PANIC) BUG(); }