path: root/init
diff options
authorEric W. Biederman <>2007-02-14 00:34:12 -0800
committerLinus Torvalds <>2007-02-14 08:10:00 -0800
commit77b14db502cb85a031fe8fde6c85d52f3e0acb63 (patch)
tree4201f6a4dfe1062d1dc00659c403d630401b87cc /init
parent1ff007eb8e8c7c44e9a384a67d0fdd0fd06ba811 (diff)
[PATCH] sysctl: reimplement the sysctl proc support
With this change the sysctl inodes can be cached and nothing needs to be done when removing a sysctl table. For a cost of 2K code we will save about 4K of static tables (when we remove de from ctl_table) and 70K in proc_dir_entries that we will not allocate, or about half that on a 32bit arch. The speed feels about the same, even though we can now cache the sysctl dentries :( We get the core advantage that we don't need to have a 1 to 1 mapping between ctl table entries and proc files. Making it possible to have /proc/sys vary depending on the namespace you are in. The currently merged namespaces don't have an issue here but the network namespace under /proc/sys/net needs to have different directories depending on which network adapters are visible. By simply being a cache different directories being visible depending on who you are is trivial to implement. [ fix uninitialised var] [ fix ARM build] [ make things static] Signed-off-by: Eric W. Biederman <> Cc: Russell King <> Signed-off-by: Andrew Morton <> Signed-off-by: Linus Torvalds <>
Diffstat (limited to 'init')
1 files changed, 0 insertions, 4 deletions
diff --git a/init/main.c b/init/main.c
index a20a5138211f..649ab5443d43 100644
--- a/init/main.c
+++ b/init/main.c
@@ -86,7 +86,6 @@ extern void init_IRQ(void);
extern void fork_init(unsigned long);
extern void mca_init(void);
extern void sbus_init(void);
-extern void sysctl_init(void);
extern void signals_init(void);
extern void pidhash_init(void);
extern void pidmap_init(void);
@@ -702,9 +701,6 @@ static void __init do_basic_setup(void)
- sysctl_init();