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Diffstat (limited to 'arch/alpha/kernel/srm_env.c')
-rw-r--r--arch/alpha/kernel/srm_env.c93
1 files changed, 14 insertions, 79 deletions
diff --git a/arch/alpha/kernel/srm_env.c b/arch/alpha/kernel/srm_env.c
index e64559f0a82d..ffe996a54fad 100644
--- a/arch/alpha/kernel/srm_env.c
+++ b/arch/alpha/kernel/srm_env.c
@@ -51,13 +51,11 @@ MODULE_LICENSE("GPL");
typedef struct _srm_env {
char *name;
unsigned long id;
- struct proc_dir_entry *proc_entry;
} srm_env_t;
static struct proc_dir_entry *base_dir;
static struct proc_dir_entry *named_dir;
static struct proc_dir_entry *numbered_dir;
-static char number[256][4];
static srm_env_t srm_named_entries[] = {
{ "auto_action", ENV_AUTO_ACTION },
@@ -77,21 +75,18 @@ static srm_env_t srm_named_entries[] = {
{ "tty_dev", ENV_TTY_DEV },
{ NULL, 0 },
};
-static srm_env_t srm_numbered_entries[256];
-
static int srm_env_proc_show(struct seq_file *m, void *v)
{
unsigned long ret;
- srm_env_t *entry;
+ unsigned long id = (unsigned long)m->private;
char *page;
- entry = m->private;
page = (char *)__get_free_page(GFP_USER);
if (!page)
return -ENOMEM;
- ret = callback_getenv(entry->id, page, PAGE_SIZE);
+ ret = callback_getenv(id, page, PAGE_SIZE);
if ((ret >> 61) == 0) {
seq_write(m, page, ret);
@@ -104,14 +99,14 @@ static int srm_env_proc_show(struct seq_file *m, void *v)
static int srm_env_proc_open(struct inode *inode, struct file *file)
{
- return single_open(file, srm_env_proc_show, PDE(inode)->data);
+ return single_open(file, srm_env_proc_show, PDE_DATA(inode));
}
static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer,
size_t count, loff_t *pos)
{
int res;
- srm_env_t *entry = PDE(file_inode(file))->data;
+ unsigned long id = (unsigned long)PDE_DATA(file_inode(file));
char *buf = (char *) __get_free_page(GFP_USER);
unsigned long ret1, ret2;
@@ -127,7 +122,7 @@ static ssize_t srm_env_proc_write(struct file *file, const char __user *buffer,
goto out;
buf[count] = '\0';
- ret1 = callback_setenv(entry->id, buf, count);
+ ret1 = callback_setenv(id, buf, count);
if ((ret1 >> 61) == 0) {
do
ret2 = callback_save_env();
@@ -149,52 +144,6 @@ static const struct file_operations srm_env_proc_fops = {
.write = srm_env_proc_write,
};
-static void
-srm_env_cleanup(void)
-{
- srm_env_t *entry;
- unsigned long var_num;
-
- if (base_dir) {
- /*
- * Remove named entries
- */
- if (named_dir) {
- entry = srm_named_entries;
- while (entry->name != NULL && entry->id != 0) {
- if (entry->proc_entry) {
- remove_proc_entry(entry->name,
- named_dir);
- entry->proc_entry = NULL;
- }
- entry++;
- }
- remove_proc_entry(NAMED_DIR, base_dir);
- }
-
- /*
- * Remove numbered entries
- */
- if (numbered_dir) {
- for (var_num = 0; var_num <= 255; var_num++) {
- entry = &srm_numbered_entries[var_num];
-
- if (entry->proc_entry) {
- remove_proc_entry(entry->name,
- numbered_dir);
- entry->proc_entry = NULL;
- entry->name = NULL;
- }
- }
- remove_proc_entry(NUMBERED_DIR, base_dir);
- }
-
- remove_proc_entry(BASE_DIR, NULL);
- }
-
- return;
-}
-
static int __init
srm_env_init(void)
{
@@ -213,19 +162,13 @@ srm_env_init(void)
}
/*
- * Init numbers
- */
- for (var_num = 0; var_num <= 255; var_num++)
- sprintf(number[var_num], "%ld", var_num);
-
- /*
* Create base directory
*/
base_dir = proc_mkdir(BASE_DIR, NULL);
if (!base_dir) {
printk(KERN_ERR "Couldn't create base dir /proc/%s\n",
BASE_DIR);
- goto cleanup;
+ return -ENOMEM;
}
/*
@@ -254,9 +197,8 @@ srm_env_init(void)
*/
entry = srm_named_entries;
while (entry->name && entry->id) {
- entry->proc_entry = proc_create_data(entry->name, 0644, named_dir,
- &srm_env_proc_fops, entry);
- if (!entry->proc_entry)
+ if (!proc_create_data(entry->name, 0644, named_dir,
+ &srm_env_proc_fops, (void *)entry->id))
goto cleanup;
entry++;
}
@@ -265,15 +207,11 @@ srm_env_init(void)
* Create all numbered nodes
*/
for (var_num = 0; var_num <= 255; var_num++) {
- entry = &srm_numbered_entries[var_num];
- entry->name = number[var_num];
-
- entry->proc_entry = proc_create_data(entry->name, 0644, numbered_dir,
- &srm_env_proc_fops, entry);
- if (!entry->proc_entry)
+ char name[4];
+ sprintf(name, "%ld", var_num);
+ if (!proc_create_data(name, 0644, numbered_dir,
+ &srm_env_proc_fops, (void *)var_num))
goto cleanup;
-
- entry->id = var_num;
}
printk(KERN_INFO "%s: version %s loaded successfully\n", NAME,
@@ -282,18 +220,15 @@ srm_env_init(void)
return 0;
cleanup:
- srm_env_cleanup();
-
+ remove_proc_subtree(BASE_DIR, NULL);
return -ENOMEM;
}
static void __exit
srm_env_exit(void)
{
- srm_env_cleanup();
+ remove_proc_subtree(BASE_DIR, NULL);
printk(KERN_INFO "%s: unloaded successfully\n", NAME);
-
- return;
}
module_init(srm_env_init);