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| author | Eric W. Biederman <ebiederm@xmission.com> | 2012-01-10 02:35:01 +0100 |
|---|---|---|
| committer | Eric W. Biederman <ebiederm@xmission.com> | 2012-01-25 01:40:28 +0100 |
| commit | 8425d6aaf0704b98480131ed339c208ffce12e44 (patch) | |
| tree | e4bd69b641dc9fa5677b2b7d78ca9319cd979edc /fs/proc/proc_sysctl.c | |
| parent | sysctl: Factor out init_header from __register_sysctl_paths (diff) | |
| download | linux-8425d6aaf0704b98480131ed339c208ffce12e44.tar.xz linux-8425d6aaf0704b98480131ed339c208ffce12e44.zip | |
sysctl: Factor out insert_header and erase_header
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Diffstat (limited to 'fs/proc/proc_sysctl.c')
| -rw-r--r-- | fs/proc/proc_sysctl.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c index 49799259b0f3..7e96a2681b60 100644 --- a/fs/proc/proc_sysctl.c +++ b/fs/proc/proc_sysctl.c @@ -57,6 +57,17 @@ static void init_header(struct ctl_table_header *head, head->parent = NULL; } +static void erase_header(struct ctl_table_header *head) +{ + list_del_init(&head->ctl_entry); +} + +static void insert_header(struct ctl_table_header *header) +{ + header->parent->count++; + list_add_tail(&header->ctl_entry, &header->set->list); +} + /* called under sysctl_lock */ static int use_table(struct ctl_table_header *p) { @@ -96,7 +107,7 @@ static void start_unregistering(struct ctl_table_header *p) * do not remove from the list until nobody holds it; walking the * list in do_sysctl() relies on that. */ - list_del_init(&p->ctl_entry); + erase_header(p); } static void sysctl_head_get(struct ctl_table_header *head) @@ -974,8 +985,7 @@ struct ctl_table_header *__register_sysctl_table( } if (sysctl_check_dups(namespaces, header, path, table)) goto fail_locked; - header->parent->count++; - list_add_tail(&header->ctl_entry, &header->set->list); + insert_header(header); spin_unlock(&sysctl_lock); return header; |