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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-17 02:20:36 +0400 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/xfs/support/debug.c | |
download | linux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'fs/xfs/support/debug.c')
-rw-r--r-- | fs/xfs/support/debug.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/fs/xfs/support/debug.c b/fs/xfs/support/debug.c new file mode 100644 index 000000000000..7d6e1f37df10 --- /dev/null +++ b/fs/xfs/support/debug.c @@ -0,0 +1,127 @@ +/* + * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 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. + * + * Further, this software is distributed without any warranty that it is + * free of the rightful claim of any third person regarding infringement + * or the like. Any license provided herein, whether implied or + * otherwise, applies only to this software file. Patent licenses, if + * any, provided herein do not apply to combinations of this program with + * other software, or any other product whatsoever. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, + * Mountain View, CA 94043, or: + * + * http://www.sgi.com + * + * For further information regarding this notice, see: + * + * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ + */ + +#include "debug.h" + +#include <asm/page.h> +#include <linux/sched.h> +#include <linux/kernel.h> + +int doass = 1; +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(); +} |