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sysctl: Normalize the root_table data structure.

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Every other directory has a .child member and we look at the .child
for our entries.  Do the same for the root_table.

Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
This commit is contained in:
Eric W. Biederman 2012-01-21 17:51:48 -08:00
parent 8425d6aaf0
commit a194558e86
1 changed files with 11 additions and 4 deletions
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15
fs/proc/proc_sysctl.c
View file

@ -25,7 +25,14 @@ void proc_sys_poll_notify(struct ctl_table_poll *poll)
wake_up_interruptible(&poll->wait); wake_up_interruptible(&poll->wait);
} }
static struct ctl_table root_table[1]; static struct ctl_table root_table[] = {
{
.procname = "",
.mode = S_IRUGO|S_IXUGO,
.child = &root_table[1],
},
{ }
};
static struct ctl_table_root sysctl_table_root; static struct ctl_table_root sysctl_table_root;
static struct ctl_table_header root_table_header = { static struct ctl_table_header root_table_header = {
{{.count = 1, {{.count = 1,
@ -319,7 +326,7 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry,
goto out; goto out;
} }
table = table ? table->child : head->ctl_table; table = table ? table->child : &head->ctl_table[1];
p = find_in_table(table, name); p = find_in_table(table, name);
if (!p) { if (!p) {
@ -510,7 +517,7 @@ static int proc_sys_readdir(struct file *filp, void *dirent, filldir_t filldir)
goto out; goto out;
} }
table = table ? table->child : head->ctl_table; table = table ? table->child : &head->ctl_table[1];
ret = 0; ret = 0;
/* Avoid a switch here: arm builds fail with missing __cmpdi2 */ /* Avoid a switch here: arm builds fail with missing __cmpdi2 */
@ -966,7 +973,7 @@ struct ctl_table_header *__register_sysctl_table(
spin_lock(&sysctl_lock); spin_lock(&sysctl_lock);
header->set = lookup_header_set(root, namespaces); header->set = lookup_header_set(root, namespaces);
header->attached_by = header->ctl_table; header->attached_by = header->ctl_table;
header->attached_to = root_table; header->attached_to = &root_table[1];
header->parent = &root_table_header; header->parent = &root_table_header;
set = header->set; set = header->set;
root = header->root; root = header->root;