diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 18:20:36 -0400 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /fs/xfs/support/debug.c | |
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 @@ | |||
| 1 | /* | ||
| 2 | * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. | ||
| 3 | * | ||
| 4 | * This program is free software; you can redistribute it and/or modify it | ||
| 5 | * under the terms of version 2 of the GNU General Public License as | ||
| 6 | * published by the Free Software Foundation. | ||
| 7 | * | ||
| 8 | * This program is distributed in the hope that it would be useful, but | ||
| 9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. | ||
| 11 | * | ||
| 12 | * Further, this software is distributed without any warranty that it is | ||
| 13 | * free of the rightful claim of any third person regarding infringement | ||
| 14 | * or the like. Any license provided herein, whether implied or | ||
| 15 | * otherwise, applies only to this software file. Patent licenses, if | ||
| 16 | * any, provided herein do not apply to combinations of this program with | ||
| 17 | * other software, or any other product whatsoever. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU General Public License along | ||
| 20 | * with this program; if not, write the Free Software Foundation, Inc., 59 | ||
| 21 | * Temple Place - Suite 330, Boston MA 02111-1307, USA. | ||
| 22 | * | ||
| 23 | * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, | ||
| 24 | * Mountain View, CA 94043, or: | ||
| 25 | * | ||
| 26 | * http://www.sgi.com | ||
| 27 | * | ||
| 28 | * For further information regarding this notice, see: | ||
| 29 | * | ||
| 30 | * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ | ||
| 31 | */ | ||
| 32 | |||
| 33 | #include "debug.h" | ||
| 34 | |||
| 35 | #include <asm/page.h> | ||
| 36 | #include <linux/sched.h> | ||
| 37 | #include <linux/kernel.h> | ||
| 38 | |||
| 39 | int doass = 1; | ||
| 40 | static char message[256]; /* keep it off the stack */ | ||
| 41 | static DEFINE_SPINLOCK(xfs_err_lock); | ||
| 42 | |||
| 43 | /* Translate from CE_FOO to KERN_FOO, err_level(CE_FOO) == KERN_FOO */ | ||
| 44 | #define XFS_MAX_ERR_LEVEL 7 | ||
| 45 | #define XFS_ERR_MASK ((1 << 3) - 1) | ||
| 46 | static char *err_level[XFS_MAX_ERR_LEVEL+1] = | ||
| 47 | {KERN_EMERG, KERN_ALERT, KERN_CRIT, | ||
| 48 | KERN_ERR, KERN_WARNING, KERN_NOTICE, | ||
| 49 | KERN_INFO, KERN_DEBUG}; | ||
| 50 | |||
| 51 | void | ||
| 52 | assfail(char *a, char *f, int l) | ||
| 53 | { | ||
| 54 | printk("XFS assertion failed: %s, file: %s, line: %d\n", a, f, l); | ||
| 55 | BUG(); | ||
| 56 | } | ||
| 57 | |||
| 58 | #if ((defined(DEBUG) || defined(INDUCE_IO_ERRROR)) && !defined(NO_WANT_RANDOM)) | ||
| 59 | |||
| 60 | unsigned long | ||
| 61 | random(void) | ||
| 62 | { | ||
| 63 | static unsigned long RandomValue = 1; | ||
| 64 | /* cycles pseudo-randomly through all values between 1 and 2^31 - 2 */ | ||
| 65 | register long rv = RandomValue; | ||
| 66 | register long lo; | ||
| 67 | register long hi; | ||
| 68 | |||
| 69 | hi = rv / 127773; | ||
| 70 | lo = rv % 127773; | ||
| 71 | rv = 16807 * lo - 2836 * hi; | ||
| 72 | if( rv <= 0 ) rv += 2147483647; | ||
| 73 | return( RandomValue = rv ); | ||
| 74 | } | ||
| 75 | |||
| 76 | int | ||
| 77 | get_thread_id(void) | ||
| 78 | { | ||
| 79 | return current->pid; | ||
| 80 | } | ||
| 81 | |||
| 82 | #endif /* DEBUG || INDUCE_IO_ERRROR || !NO_WANT_RANDOM */ | ||
| 83 | |||
| 84 | void | ||
| 85 | cmn_err(register int level, char *fmt, ...) | ||
| 86 | { | ||
| 87 | char *fp = fmt; | ||
| 88 | int len; | ||
| 89 | ulong flags; | ||
| 90 | va_list ap; | ||
| 91 | |||
| 92 | level &= XFS_ERR_MASK; | ||
| 93 | if (level > XFS_MAX_ERR_LEVEL) | ||
| 94 | level = XFS_MAX_ERR_LEVEL; | ||
| 95 | spin_lock_irqsave(&xfs_err_lock,flags); | ||
| 96 | va_start(ap, fmt); | ||
| 97 | if (*fmt == '!') fp++; | ||
| 98 | len = vsprintf(message, fp, ap); | ||
| 99 | if (message[len-1] != '\n') | ||
| 100 | strcat(message, "\n"); | ||
| 101 | printk("%s%s", err_level[level], message); | ||
| 102 | va_end(ap); | ||
| 103 | spin_unlock_irqrestore(&xfs_err_lock,flags); | ||
| 104 | |||
| 105 | if (level == CE_PANIC) | ||
| 106 | BUG(); | ||
| 107 | } | ||
| 108 | |||
| 109 | |||
| 110 | void | ||
| 111 | icmn_err(register int level, char *fmt, va_list ap) | ||
| 112 | { | ||
| 113 | ulong flags; | ||
| 114 | int len; | ||
| 115 | |||
| 116 | level &= XFS_ERR_MASK; | ||
| 117 | if(level > XFS_MAX_ERR_LEVEL) | ||
| 118 | level = XFS_MAX_ERR_LEVEL; | ||
| 119 | spin_lock_irqsave(&xfs_err_lock,flags); | ||
| 120 | len = vsprintf(message, fmt, ap); | ||
| 121 | if (message[len-1] != '\n') | ||
| 122 | strcat(message, "\n"); | ||
| 123 | spin_unlock_irqrestore(&xfs_err_lock,flags); | ||
| 124 | printk("%s%s", err_level[level], message); | ||
| 125 | if (level == CE_PANIC) | ||
| 126 | BUG(); | ||
| 127 | } | ||
