From: Xiaoming Ni nixiaoming@huawei.com
Move epoll_table sysctl to fs/eventpoll.c and remove the clutter out of kernel/sysctl.c by using register_sysctl_subdir()..
Signed-off-by: Xiaoming Ni nixiaoming@huawei.com Signed-off-by: Luis Chamberlain mcgrof@kernel.org --- fs/eventpoll.c | 10 +++++++++- include/linux/poll.h | 2 -- include/linux/sysctl.h | 1 - kernel/sysctl.c | 7 ------- 4 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/fs/eventpoll.c b/fs/eventpoll.c index 12eebcdea9c8..957ebc9700e3 100644 --- a/fs/eventpoll.c +++ b/fs/eventpoll.c @@ -299,7 +299,7 @@ static LIST_HEAD(tfile_check_list); static long long_zero; static long long_max = LONG_MAX;
-struct ctl_table epoll_table[] = { +static struct ctl_table epoll_table[] = { { .procname = "max_user_watches", .data = &max_user_watches, @@ -311,6 +311,13 @@ struct ctl_table epoll_table[] = { }, { } }; + +static void __init epoll_sysctls_init(void) +{ + register_sysctl_subdir("fs", "epoll", epoll_table); +} +#else +#define epoll_sysctls_init() do { } while (0) #endif /* CONFIG_SYSCTL */
static const struct file_operations eventpoll_fops; @@ -2422,6 +2429,7 @@ static int __init eventpoll_init(void) /* Allocates slab cache used to allocate "struct eppoll_entry" */ pwq_cache = kmem_cache_create("eventpoll_pwq", sizeof(struct eppoll_entry), 0, SLAB_PANIC|SLAB_ACCOUNT, NULL); + epoll_sysctls_init();
return 0; } diff --git a/include/linux/poll.h b/include/linux/poll.h index 1cdc32b1f1b0..a9e0e1c2d1f2 100644 --- a/include/linux/poll.h +++ b/include/linux/poll.h @@ -8,12 +8,10 @@ #include <linux/wait.h> #include <linux/string.h> #include <linux/fs.h> -#include <linux/sysctl.h> #include <linux/uaccess.h> #include <uapi/linux/poll.h> #include <uapi/linux/eventpoll.h>
-extern struct ctl_table epoll_table[]; /* for sysctl */ /* ~832 bytes of stack space used max in sys_select/sys_poll before allocating additional memory. */ #ifdef __clang__ diff --git a/include/linux/sysctl.h b/include/linux/sysctl.h index aa01f54d0442..e5364b69dd95 100644 --- a/include/linux/sysctl.h +++ b/include/linux/sysctl.h @@ -217,7 +217,6 @@ extern int no_unaligned_warning;
extern struct ctl_table sysctl_mount_point[]; extern struct ctl_table random_table[]; -extern struct ctl_table epoll_table[];
#else /* CONFIG_SYSCTL */ static inline struct ctl_table_header *register_sysctl_table(struct ctl_table * table) diff --git a/kernel/sysctl.c b/kernel/sysctl.c index e007375c8a11..5c116904feb7 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -3001,13 +3001,6 @@ static struct ctl_table fs_table[] = { .proc_handler = proc_dointvec, }, #endif -#ifdef CONFIG_EPOLL - { - .procname = "epoll", - .mode = 0555, - .child = epoll_table, - }, -#endif #endif { .procname = "protected_symlinks",