From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- fs/jfs/jfs_debug.c | 154 +++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 fs/jfs/jfs_debug.c (limited to 'fs/jfs/jfs_debug.c') diff --git a/fs/jfs/jfs_debug.c b/fs/jfs/jfs_debug.c new file mode 100644 index 000000000000..91a0a889ebc5 --- /dev/null +++ b/fs/jfs/jfs_debug.c @@ -0,0 +1,154 @@ +/* + * Copyright (C) International Business Machines Corp., 2000-2004 + * Portions Copyright (C) Christoph Hellwig, 2001-2002 + * + * 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; either version 2 of the License, or + * (at your option) any later version. + * + * 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 + */ + +#include +#include +#include +#include +#include +#include "jfs_incore.h" +#include "jfs_filsys.h" +#include "jfs_debug.h" + +#ifdef CONFIG_JFS_DEBUG +void dump_mem(char *label, void *data, int length) +{ + int i, j; + int *intptr = data; + char *charptr = data; + char buf[10], line[80]; + + printk("%s: dump of %d bytes of data at 0x%p\n\n", label, length, + data); + for (i = 0; i < length; i += 16) { + line[0] = 0; + for (j = 0; (j < 4) && (i + j * 4 < length); j++) { + sprintf(buf, " %08x", intptr[i / 4 + j]); + strcat(line, buf); + } + buf[0] = ' '; + buf[2] = 0; + for (j = 0; (j < 16) && (i + j < length); j++) { + buf[1] = + isprint(charptr[i + j]) ? charptr[i + j] : '.'; + strcat(line, buf); + } + printk("%s\n", line); + } +} +#endif + +#ifdef PROC_FS_JFS /* see jfs_debug.h */ + +static struct proc_dir_entry *base; +#ifdef CONFIG_JFS_DEBUG +extern read_proc_t jfs_txanchor_read; + +static int loglevel_read(char *page, char **start, off_t off, + int count, int *eof, void *data) +{ + int len; + + len = sprintf(page, "%d\n", jfsloglevel); + + len -= off; + *start = page + off; + + if (len > count) + len = count; + else + *eof = 1; + + if (len < 0) + len = 0; + + return len; +} + +static int loglevel_write(struct file *file, const char __user *buffer, + unsigned long count, void *data) +{ + char c; + + if (get_user(c, buffer)) + return -EFAULT; + + /* yes, I know this is an ASCIIism. --hch */ + if (c < '0' || c > '9') + return -EINVAL; + jfsloglevel = c - '0'; + return count; +} +#endif + + +#ifdef CONFIG_JFS_STATISTICS +extern read_proc_t jfs_lmstats_read; +extern read_proc_t jfs_txstats_read; +extern read_proc_t jfs_xtstat_read; +extern read_proc_t jfs_mpstat_read; +#endif + +static struct { + const char *name; + read_proc_t *read_fn; + write_proc_t *write_fn; +} Entries[] = { +#ifdef CONFIG_JFS_STATISTICS + { "lmstats", jfs_lmstats_read, }, + { "txstats", jfs_txstats_read, }, + { "xtstat", jfs_xtstat_read, }, + { "mpstat", jfs_mpstat_read, }, +#endif +#ifdef CONFIG_JFS_DEBUG + { "TxAnchor", jfs_txanchor_read, }, + { "loglevel", loglevel_read, loglevel_write } +#endif +}; +#define NPROCENT (sizeof(Entries)/sizeof(Entries[0])) + +void jfs_proc_init(void) +{ + int i; + + if (!(base = proc_mkdir("jfs", proc_root_fs))) + return; + base->owner = THIS_MODULE; + + for (i = 0; i < NPROCENT; i++) { + struct proc_dir_entry *p; + if ((p = create_proc_entry(Entries[i].name, 0, base))) { + p->read_proc = Entries[i].read_fn; + p->write_proc = Entries[i].write_fn; + } + } +} + +void jfs_proc_clean(void) +{ + int i; + + if (base) { + for (i = 0; i < NPROCENT; i++) + remove_proc_entry(Entries[i].name, base); + remove_proc_entry("jfs", proc_root_fs); + } +} + +#endif /* PROC_FS_JFS */ -- cgit v1.2.3