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-rw-r--r--fs/reiserfs/procfs.c239
1 files changed, 52 insertions, 187 deletions
diff --git a/fs/reiserfs/procfs.c b/fs/reiserfs/procfs.c
index fc2f43c75df..02b0b7d0f7d 100644
--- a/fs/reiserfs/procfs.c
+++ b/fs/reiserfs/procfs.c
@@ -8,30 +8,24 @@
/* proc info support a la one created by Sizif@Botik.RU for PGC */
-/* $Id: procfs.c,v 1.1.8.2 2001/07/15 17:08:42 god Exp $ */
-
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/time.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
-#include <linux/reiserfs_fs.h>
-#include <linux/reiserfs_fs_sb.h>
-#include <linux/smp_lock.h>
+#include "reiserfs.h"
#include <linux/init.h>
#include <linux/proc_fs.h>
-#if defined( REISERFS_PROC_INFO )
-
/*
* LOCKING:
*
- * We rely on new Alexander Viro's super-block locking.
+ * These guys are evicted from procfs as the very first step in ->kill_sb().
*
*/
-static int show_version(struct seq_file *m, struct super_block *sb)
+static int show_version(struct seq_file *m, void *unused)
{
+ struct super_block *sb = m->private;
char *format;
if (REISERFS_SB(sb)->s_properties & (1 << REISERFS_3_6)) {
@@ -52,14 +46,6 @@ static int show_version(struct seq_file *m, struct super_block *sb)
return 0;
}
-int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset,
- int count, int *eof, void *data)
-{
- *start = buffer;
- *eof = 1;
- return 0;
-}
-
#define SF( x ) ( r -> x )
#define SFP( x ) SF( s_proc_info_data.x )
#define SFPL( x ) SFP( x[ level ] )
@@ -81,14 +67,14 @@ int reiserfs_global_version_in_proc(char *buffer, char **start, off_t offset,
#define DJP( x ) le32_to_cpu( jp -> x )
#define JF( x ) ( r -> s_journal -> x )
-static int show_super(struct seq_file *m, struct super_block *sb)
+static int show_super(struct seq_file *m, void *unused)
{
+ struct super_block *sb = m->private;
struct reiserfs_sb_info *r = REISERFS_SB(sb);
seq_printf(m, "state: \t%s\n"
"mount options: \t%s%s%s%s%s%s%s%s%s%s%s\n"
"gen. counter: \t%i\n"
- "s_kmallocs: \t%i\n"
"s_disk_reads: \t%i\n"
"s_disk_writes: \t%i\n"
"s_fix_nodes: \t%i\n"
@@ -128,7 +114,7 @@ static int show_super(struct seq_file *m, struct super_block *sb)
"SMALL_TAILS " : "NO_TAILS ",
replay_only(sb) ? "REPLAY_ONLY " : "",
convert_reiserfs(sb) ? "CONV " : "",
- atomic_read(&r->s_generation_counter), SF(s_kmallocs),
+ atomic_read(&r->s_generation_counter),
SF(s_disk_reads), SF(s_disk_writes), SF(s_fix_nodes),
SF(s_do_balance), SF(s_unneeded_left_neighbor),
SF(s_good_search_by_key_reada), SF(s_bmaps),
@@ -144,8 +130,9 @@ static int show_super(struct seq_file *m, struct super_block *sb)
return 0;
}
-static int show_per_level(struct seq_file *m, struct super_block *sb)
+static int show_per_level(struct seq_file *m, void *unused)
{
+ struct super_block *sb = m->private;
struct reiserfs_sb_info *r = REISERFS_SB(sb);
int level;
@@ -202,8 +189,9 @@ static int show_per_level(struct seq_file *m, struct super_block *sb)
return 0;
}
-static int show_bitmap(struct seq_file *m, struct super_block *sb)
+static int show_bitmap(struct seq_file *m, void *unused)
{
+ struct super_block *sb = m->private;
struct reiserfs_sb_info *r = REISERFS_SB(sb);
seq_printf(m, "free_block: %lu\n"
@@ -234,8 +222,9 @@ static int show_bitmap(struct seq_file *m, struct super_block *sb)
return 0;
}
-static int show_on_disk_super(struct seq_file *m, struct super_block *sb)
+static int show_on_disk_super(struct seq_file *m, void *unused)
{
+ struct super_block *sb = m->private;
struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
struct reiserfs_super_block *rs = sb_info->s_rs;
int hash_code = DFL(s_hash_function_code);
@@ -277,8 +266,9 @@ static int show_on_disk_super(struct seq_file *m, struct super_block *sb)
return 0;
}
-static int show_oidmap(struct seq_file *m, struct super_block *sb)
+static int show_oidmap(struct seq_file *m, void *unused)
{
+ struct super_block *sb = m->private;
struct reiserfs_sb_info *sb_info = REISERFS_SB(sb);
struct reiserfs_super_block *rs = sb_info->s_rs;
unsigned int mapsize = le16_to_cpu(rs->s_v1.s_oid_cursize);
@@ -297,7 +287,7 @@ static int show_oidmap(struct seq_file *m, struct super_block *sb)
}
#if defined( REISERFS_USE_OIDMAPF )
if (sb_info->oidmap.use_file && (sb_info->oidmap.mapf != NULL)) {
- loff_t size = sb_info->oidmap.mapf->f_dentry->d_inode->i_size;
+ loff_t size = file_inode(sb_info->oidmap.mapf)->i_size;
total_used += size / sizeof(reiserfs_oidinterval_d_t);
}
#endif
@@ -307,8 +297,9 @@ static int show_oidmap(struct seq_file *m, struct super_block *sb)
return 0;
}
-static int show_journal(struct seq_file *m, struct super_block *sb)
+static int show_journal(struct seq_file *m, void *unused)
{
+ struct super_block *sb = m->private;
struct reiserfs_sb_info *r = REISERFS_SB(sb);
struct reiserfs_super_block *rs = r->s_rs;
struct journal_params *jp = &rs->s_v1.s_journal;
@@ -326,7 +317,7 @@ static int show_journal(struct seq_file *m, struct super_block *sb)
/* incore fields */
"j_1st_reserved_block: \t%i\n"
"j_state: \t%li\n"
- "j_trans_id: \t%lu\n"
+ "j_trans_id: \t%u\n"
"j_mount_id: \t%lu\n"
"j_start: \t%lu\n"
"j_len: \t%lu\n"
@@ -334,7 +325,7 @@ static int show_journal(struct seq_file *m, struct super_block *sb)
"j_wcount: \t%i\n"
"j_bcount: \t%lu\n"
"j_first_unflushed_offset: \t%lu\n"
- "j_last_flush_trans_id: \t%lu\n"
+ "j_last_flush_trans_id: \t%u\n"
"j_trans_start_time: \t%li\n"
"j_list_bitmap_index: \t%i\n"
"j_must_wait: \t%i\n"
@@ -399,107 +390,43 @@ static int show_journal(struct seq_file *m, struct super_block *sb)
return 0;
}
-/* iterator */
-static int test_sb(struct super_block *sb, void *data)
-{
- return data == sb;
-}
-
-static int set_sb(struct super_block *sb, void *data)
-{
- return -ENOENT;
-}
-
-static void *r_start(struct seq_file *m, loff_t * pos)
-{
- struct proc_dir_entry *de = m->private;
- struct super_block *s = de->parent->data;
- loff_t l = *pos;
-
- if (l)
- return NULL;
-
- if (IS_ERR(sget(&reiserfs_fs_type, test_sb, set_sb, s)))
- return NULL;
-
- up_write(&s->s_umount);
-
- if (de->deleted) {
- deactivate_super(s);
- return NULL;
- }
-
- return s;
-}
-
-static void *r_next(struct seq_file *m, void *v, loff_t * pos)
-{
- ++*pos;
- if (v)
- deactivate_super(v);
- return NULL;
-}
-
-static void r_stop(struct seq_file *m, void *v)
-{
- if (v)
- deactivate_super(v);
-}
-
-static int r_show(struct seq_file *m, void *v)
-{
- struct proc_dir_entry *de = m->private;
- int (*show) (struct seq_file *, struct super_block *) = de->data;
- return show(m, v);
-}
-
-static struct seq_operations r_ops = {
- .start = r_start,
- .next = r_next,
- .stop = r_stop,
- .show = r_show,
-};
-
static int r_open(struct inode *inode, struct file *file)
{
- int ret = seq_open(file, &r_ops);
-
- if (!ret) {
- struct seq_file *m = file->private_data;
- m->private = PDE(inode);
- }
- return ret;
+ return single_open(file, PDE_DATA(inode),
+ proc_get_parent_data(inode));
}
-static struct file_operations r_file_operations = {
+static const struct file_operations r_file_operations = {
.open = r_open,
.read = seq_read,
.llseek = seq_lseek,
- .release = seq_release,
+ .release = single_release,
};
static struct proc_dir_entry *proc_info_root = NULL;
static const char proc_info_root_name[] = "fs/reiserfs";
static void add_file(struct super_block *sb, char *name,
- int (*func) (struct seq_file *, struct super_block *))
+ int (*func) (struct seq_file *, void *))
{
- struct proc_dir_entry *de;
- de = create_proc_entry(name, 0, REISERFS_SB(sb)->procdir);
- if (de) {
- de->data = func;
- de->proc_fops = &r_file_operations;
- }
+ proc_create_data(name, 0, REISERFS_SB(sb)->procdir,
+ &r_file_operations, func);
}
int reiserfs_proc_info_init(struct super_block *sb)
{
+ char b[BDEVNAME_SIZE];
+ char *s;
+
+ /* Some block devices use /'s */
+ strlcpy(b, sb->s_id, BDEVNAME_SIZE);
+ s = strchr(b, '/');
+ if (s)
+ *s = '!';
+
spin_lock_init(&__PINFO(sb).lock);
- REISERFS_SB(sb)->procdir =
- proc_mkdir(reiserfs_bdevname(sb), proc_info_root);
+ REISERFS_SB(sb)->procdir = proc_mkdir_data(b, 0, proc_info_root, sb);
if (REISERFS_SB(sb)->procdir) {
- REISERFS_SB(sb)->procdir->owner = THIS_MODULE;
- REISERFS_SB(sb)->procdir->data = sb;
add_file(sb, "version", show_version);
add_file(sb, "super", show_super);
add_file(sb, "per-level", show_per_level);
@@ -509,8 +436,8 @@ int reiserfs_proc_info_init(struct super_block *sb)
add_file(sb, "journal", show_journal);
return 0;
}
- reiserfs_warning(sb, "reiserfs: cannot create /proc/%s/%s",
- proc_info_root_name, reiserfs_bdevname(sb));
+ reiserfs_warning(sb, "cannot create /proc/%s/%s",
+ proc_info_root_name, b);
return 1;
}
@@ -518,46 +445,27 @@ int reiserfs_proc_info_done(struct super_block *sb)
{
struct proc_dir_entry *de = REISERFS_SB(sb)->procdir;
if (de) {
- remove_proc_entry("journal", de);
- remove_proc_entry("oidmap", de);
- remove_proc_entry("on-disk-super", de);
- remove_proc_entry("bitmap", de);
- remove_proc_entry("per-level", de);
- remove_proc_entry("super", de);
- remove_proc_entry("version", de);
- }
- spin_lock(&__PINFO(sb).lock);
- __PINFO(sb).exiting = 1;
- spin_unlock(&__PINFO(sb).lock);
- if (proc_info_root) {
- remove_proc_entry(reiserfs_bdevname(sb), proc_info_root);
+ char b[BDEVNAME_SIZE];
+ char *s;
+
+ /* Some block devices use /'s */
+ strlcpy(b, sb->s_id, BDEVNAME_SIZE);
+ s = strchr(b, '/');
+ if (s)
+ *s = '!';
+
+ remove_proc_subtree(b, proc_info_root);
REISERFS_SB(sb)->procdir = NULL;
}
return 0;
}
-struct proc_dir_entry *reiserfs_proc_register_global(char *name,
- read_proc_t * func)
-{
- return (proc_info_root) ? create_proc_read_entry(name, 0,
- proc_info_root,
- func, NULL) : NULL;
-}
-
-void reiserfs_proc_unregister_global(const char *name)
-{
- remove_proc_entry(name, proc_info_root);
-}
-
int reiserfs_proc_info_global_init(void)
{
if (proc_info_root == NULL) {
proc_info_root = proc_mkdir(proc_info_root_name, NULL);
- if (proc_info_root) {
- proc_info_root->owner = THIS_MODULE;
- } else {
- reiserfs_warning(NULL,
- "reiserfs: cannot create /proc/%s",
+ if (!proc_info_root) {
+ reiserfs_warning(NULL, "cannot create /proc/%s",
proc_info_root_name);
return 1;
}
@@ -573,50 +481,7 @@ int reiserfs_proc_info_global_done(void)
}
return 0;
}
-
-/* REISERFS_PROC_INFO */
-#else
-
-int reiserfs_proc_info_init(struct super_block *sb)
-{
- return 0;
-}
-int reiserfs_proc_info_done(struct super_block *sb)
-{
- return 0;
-}
-
-struct proc_dir_entry *reiserfs_proc_register_global(char *name,
- read_proc_t * func)
-{
- return NULL;
-}
-
-void reiserfs_proc_unregister_global(const char *name)
-{;
-}
-
-int reiserfs_proc_info_global_init(void)
-{
- return 0;
-}
-int reiserfs_proc_info_global_done(void)
-{
- return 0;
-}
-
-int reiserfs_global_version_in_proc(char *buffer, char **start,
- off_t offset,
- int count, int *eof, void *data)
-{
- return 0;
-}
-
-/* REISERFS_PROC_INFO */
-#endif
-
/*
- * $Log: procfs.c,v $
* Revision 1.1.8.2 2001/07/15 17:08:42 god
* . use get_super() in procfs.c
* . remove remove_save_link() from reiserfs_do_truncate()
@@ -632,7 +497,7 @@ int reiserfs_global_version_in_proc(char *buffer, char **start,
*
*/
-/*
+/*
* Make Linus happy.
* Local variables:
* c-indentation-style: "K&R"
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-12-05 17:25:50 +0000