From 8d6ecfcc014332fd2fe933f64194160f0e3a6696 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 6 Jan 2012 11:55:30 -0800 Subject: sysctl: Remove the now unused ctl_table parent field. While useful at one time for selinux and the sysctl sanity checks those users no longer use the parent field and we can safely remove it. Inspired-by: Lucian Adrian Grijincu Signed-off-by: Eric W. Biederman --- fs/proc/proc_sysctl.c | 12 +----------- include/linux/sysctl.h | 1 - 2 files changed, 1 insertion(+), 12 deletions(-) diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index a492ff60e07..e573f9b4f22 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -218,16 +218,6 @@ static int sysctl_perm(struct ctl_table_root *root, struct ctl_table *table, int return test_perm(mode, op); } -static void sysctl_set_parent(struct ctl_table *parent, struct ctl_table *table) -{ - for (; table->procname; table++) { - table->parent = parent; - if (table->child) - sysctl_set_parent(table, table->child); - } -} - - static struct inode *proc_sys_make_inode(struct super_block *sb, struct ctl_table_header *head, struct ctl_table *table) { @@ -947,10 +937,10 @@ struct ctl_table_header *__register_sysctl_table( header->used = 0; header->unregistering = NULL; header->root = root; - sysctl_set_parent(NULL, header->ctl_table); header->count = 1; if (sysctl_check_table(path, table)) goto fail; + spin_lock(&sysctl_lock); header->set = lookup_header_set(root, namespaces); header->attached_by = header->ctl_table; diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index 25c7dfe1a7e..094bc5ccf1e 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -1016,7 +1016,6 @@ struct ctl_table int maxlen; umode_t mode; struct ctl_table *child; /* Deprecated */ - struct ctl_table *parent; /* Automatically set */ proc_handler *proc_handler; /* Callback for text formatting */ struct ctl_table_poll *poll; void *extra1; -- cgit v1.2.3