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author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 18:08:58 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-03-23 18:08:58 -0700 |
commit | f1d38e423a697b7aa06e12d3ca4753bcc1aa3531 (patch) | |
tree | 1cbfd86070f724d5ffe53146d4c67edf14cccf98 /net | |
parent | dae430c6f6e5d0b98c238c340a41a39e221e8940 (diff) | |
parent | 4e474a00d7ff746ed177ddae14fa8b2d4bad7a00 (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl
Pull sysctl updates from Eric Biederman:
- Rewrite of sysctl for speed and clarity.
Insert/remove/Lookup in sysctl are all now O(NlogN) operations, and
are no longer bottlenecks in the process of adding and removing
network devices.
sysctl is now focused on being a filesystem instead of system call
and the code can all be found in fs/proc/proc_sysctl.c. Hopefully
this means the code is now approachable.
Much thanks is owed to Lucian Grinjincu for keeping at this until
something was found that was usable.
- The recent proc_sys_poll oops found by the fuzzer during hibernation
is fixed.
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl: (36 commits)
sysctl: protect poll() in entries that may go away
sysctl: Don't call sysctl_follow_link unless we are a link.
sysctl: Comments to make the code clearer.
sysctl: Correct error return from get_subdir
sysctl: An easier to read version of find_subdir
sysctl: fix memset parameters in setup_sysctl_set()
sysctl: remove an unused variable
sysctl: Add register_sysctl for normal sysctl users
sysctl: Index sysctl directories with rbtrees.
sysctl: Make the header lists per directory.
sysctl: Move sysctl_check_dups into insert_header
sysctl: Modify __register_sysctl_paths to take a set instead of a root and an nsproxy
sysctl: Replace root_list with links between sysctl_table_sets.
sysctl: Add sysctl_print_dir and use it in get_subdir
sysctl: Stop requiring explicit management of sysctl directories
sysctl: Add a root pointer to ctl_table_set
sysctl: Rewrite proc_sys_readdir in terms of first_entry and next_entry
sysctl: Rewrite proc_sys_lookup introducing find_entry and lookup_entry.
sysctl: Normalize the root_table data structure.
sysctl: Factor out insert_header and erase_header
...
Diffstat (limited to 'net')
-rw-r--r-- | net/sysctl_net.c | 24 |
1 files changed, 9 insertions, 15 deletions
diff --git a/net/sysctl_net.c b/net/sysctl_net.c index e75813904f2..c3e65aebecc 100644 --- a/net/sysctl_net.c +++ b/net/sysctl_net.c @@ -74,15 +74,13 @@ static struct ctl_table_root net_sysctl_ro_root = { static int __net_init sysctl_net_init(struct net *net) { - setup_sysctl_set(&net->sysctls, - &net_sysctl_ro_root.default_set, - is_seen); + setup_sysctl_set(&net->sysctls, &net_sysctl_root, is_seen); return 0; } static void __net_exit sysctl_net_exit(struct net *net) { - WARN_ON(!list_empty(&net->sysctls.list)); + retire_sysctl_set(&net->sysctls); } static struct pernet_operations sysctl_pernet_ops = { @@ -90,36 +88,32 @@ static struct pernet_operations sysctl_pernet_ops = { .exit = sysctl_net_exit, }; -static __init int sysctl_init(void) +static __init int net_sysctl_init(void) { int ret; ret = register_pernet_subsys(&sysctl_pernet_ops); if (ret) goto out; - register_sysctl_root(&net_sysctl_root); - setup_sysctl_set(&net_sysctl_ro_root.default_set, NULL, NULL); + setup_sysctl_set(&net_sysctl_ro_root.default_set, &net_sysctl_ro_root, NULL); register_sysctl_root(&net_sysctl_ro_root); + register_sysctl_root(&net_sysctl_root); out: return ret; } -subsys_initcall(sysctl_init); +subsys_initcall(net_sysctl_init); struct ctl_table_header *register_net_sysctl_table(struct net *net, const struct ctl_path *path, struct ctl_table *table) { - struct nsproxy namespaces; - namespaces = *current->nsproxy; - namespaces.net_ns = net; - return __register_sysctl_paths(&net_sysctl_root, - &namespaces, path, table); + return __register_sysctl_paths(&net->sysctls, path, table); } EXPORT_SYMBOL_GPL(register_net_sysctl_table); struct ctl_table_header *register_net_sysctl_rotable(const struct ctl_path *path, struct ctl_table *table) { - return __register_sysctl_paths(&net_sysctl_ro_root, - &init_nsproxy, path, table); + return __register_sysctl_paths(&net_sysctl_ro_root.default_set, + path, table); } EXPORT_SYMBOL_GPL(register_net_sysctl_rotable); |