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80 lines
1.9 KiB
80 lines
1.9 KiB
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* Copyright (C) International Business Machines Corp., 2000-2004 |
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* Portions Copyright (C) Christoph Hellwig, 2001-2002 |
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*/ |
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#include <linux/fs.h> |
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#include <linux/ctype.h> |
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#include <linux/module.h> |
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#include <linux/proc_fs.h> |
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#include <linux/seq_file.h> |
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#include <linux/uaccess.h> |
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#include "jfs_incore.h" |
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#include "jfs_filsys.h" |
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#include "jfs_debug.h" |
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#ifdef PROC_FS_JFS /* see jfs_debug.h */ |
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#ifdef CONFIG_JFS_DEBUG |
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static int jfs_loglevel_proc_show(struct seq_file *m, void *v) |
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{ |
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seq_printf(m, "%d\n", jfsloglevel); |
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return 0; |
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} |
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static int jfs_loglevel_proc_open(struct inode *inode, struct file *file) |
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{ |
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return single_open(file, jfs_loglevel_proc_show, NULL); |
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} |
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static ssize_t jfs_loglevel_proc_write(struct file *file, |
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const char __user *buffer, size_t count, loff_t *ppos) |
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{ |
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char c; |
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if (get_user(c, buffer)) |
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return -EFAULT; |
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/* yes, I know this is an ASCIIism. --hch */ |
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if (c < '0' || c > '9') |
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return -EINVAL; |
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jfsloglevel = c - '0'; |
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return count; |
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} |
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static const struct proc_ops jfs_loglevel_proc_ops = { |
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.proc_open = jfs_loglevel_proc_open, |
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.proc_read = seq_read, |
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.proc_lseek = seq_lseek, |
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.proc_release = single_release, |
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.proc_write = jfs_loglevel_proc_write, |
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}; |
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#endif |
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void jfs_proc_init(void) |
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{ |
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struct proc_dir_entry *base; |
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base = proc_mkdir("fs/jfs", NULL); |
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if (!base) |
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return; |
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#ifdef CONFIG_JFS_STATISTICS |
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proc_create_single("lmstats", 0, base, jfs_lmstats_proc_show); |
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proc_create_single("txstats", 0, base, jfs_txstats_proc_show); |
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proc_create_single("xtstat", 0, base, jfs_xtstat_proc_show); |
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proc_create_single("mpstat", 0, base, jfs_mpstat_proc_show); |
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#endif |
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#ifdef CONFIG_JFS_DEBUG |
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proc_create_single("TxAnchor", 0, base, jfs_txanchor_proc_show); |
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proc_create("loglevel", 0, base, &jfs_loglevel_proc_ops); |
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#endif |
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} |
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void jfs_proc_clean(void) |
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{ |
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remove_proc_subtree("fs/jfs", NULL); |
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} |
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#endif /* PROC_FS_JFS */
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