From a194558e8698621a9ce7f2c6a720123e644af131 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Sat, 21 Jan 2012 17:51:48 -0800 Subject: [PATCH] sysctl: Normalize the root_table data structure. 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 --- fs/proc/proc_sysctl.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 7e96a2681b60..88d1b06cc5c0 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -25,7 +25,14 @@ void proc_sys_poll_notify(struct ctl_table_poll *poll) 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_header root_table_header = { {{.count = 1, @@ -319,7 +326,7 @@ static struct dentry *proc_sys_lookup(struct inode *dir, struct dentry *dentry, goto out; } - table = table ? table->child : head->ctl_table; + table = table ? table->child : &head->ctl_table[1]; p = find_in_table(table, name); if (!p) { @@ -510,7 +517,7 @@ static int proc_sys_readdir(struct file *filp, void *dirent, filldir_t filldir) goto out; } - table = table ? table->child : head->ctl_table; + table = table ? table->child : &head->ctl_table[1]; ret = 0; /* 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); header->set = lookup_header_set(root, namespaces); header->attached_by = header->ctl_table; - header->attached_to = root_table; + header->attached_to = &root_table[1]; header->parent = &root_table_header; set = header->set; root = header->root;