diff --git a/arch/arm/kernel/isa.c b/arch/arm/kernel/isa.c
index d8a509c5d5bd8619fac1d74d526971daa6af34a5..20218876bef290b74d932f31f70bf8bb1c97748f 100644
--- a/arch/arm/kernel/isa.c
+++ b/arch/arm/kernel/isa.c
@@ -40,27 +40,11 @@ static struct ctl_table ctl_isa_vars[4] = {
static struct ctl_table_header *isa_sysctl_header;
-static struct ctl_table ctl_isa[2] = {
- {
- .procname = "isa",
- .mode = 0555,
- .child = ctl_isa_vars,
- }, {}
-};
-
-static struct ctl_table ctl_bus[2] = {
- {
- .procname = "bus",
- .mode = 0555,
- .child = ctl_isa,
- }, {}
-};
-
void __init
register_isa_ports(unsigned int membase, unsigned int portbase, unsigned int portshift)
{
isa_membase = membase;
isa_portbase = portbase;
isa_portshift = portshift;
- isa_sysctl_header = register_sysctl_table(ctl_bus);
+ isa_sysctl_header = register_sysctl("bus/isa", ctl_isa_vars);
}
diff --git a/arch/csky/abiv1/alignment.c b/arch/csky/abiv1/alignment.c
index 2df115d0e210535ec3f9c70c3c9361551dcade51..b60259daed1b8c50314657ef3129967b23fbefeb 100644
--- a/arch/csky/abiv1/alignment.c
+++ b/arch/csky/abiv1/alignment.c
@@ -332,22 +332,9 @@ static struct ctl_table alignment_tbl[5] = {
{}
};
-static struct ctl_table sysctl_table[2] = {
- {
- .procname = "csky_alignment",
- .mode = 0555,
- .child = alignment_tbl},
- {}
-};
-
-static struct ctl_path sysctl_path[2] = {
- {.procname = "csky"},
- {}
-};
-
static int __init csky_alignment_init(void)
{
- register_sysctl_paths(sysctl_path, sysctl_table);
+ register_sysctl_init("csky/csky_alignment", alignment_tbl);
return 0;
}
diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 76730f34685c451141c4a3890e6b126b732e4712..88b3ce3e66cddf629b09c3a560a69510528314f9 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -234,15 +234,6 @@ static struct ctl_table kdump_ctl_table[] = {
},
{ }
};
-
-static struct ctl_table sys_table[] = {
- {
- .procname = "kernel",
- .mode = 0555,
- .child = kdump_ctl_table,
- },
- { }
-};
#endif
static int
@@ -257,7 +248,7 @@ machine_crash_setup(void)
if((ret = register_die_notifier(&kdump_init_notifier_nb)) != 0)
return ret;
#ifdef CONFIG_SYSCTL
- register_sysctl_table(sys_table);
+ register_sysctl("kernel", kdump_ctl_table);
#endif
return 0;
}
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 1ab4f91151002b91da945e1dcc171ff7f02682c0..734fff86c8dc5ba16da23c40c5d91597dffacb28 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -1460,15 +1460,6 @@ static struct ctl_table hv_ctl_table[] = {
{}
};
-static struct ctl_table hv_root_table[] = {
- {
- .procname = "kernel",
- .mode = 0555,
- .child = hv_ctl_table
- },
- {}
-};
-
/*
* vmbus_bus_init -Main vmbus driver initialization routine.
*
@@ -1547,7 +1538,7 @@ static int vmbus_bus_init(void)
* message recording won't be available in isolated
* guests should the following registration fail.
*/
- hv_ctl_table_hdr = register_sysctl_table(hv_root_table);
+ hv_ctl_table_hdr = register_sysctl("kernel", hv_ctl_table);
if (!hv_ctl_table_hdr)
pr_err("Hyper-V: sysctl table register error");
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 2003cf86fb8d4b58b3e1a6ecda48e66afb70ee2f..8e344b4b34446f784b8f111d2ec3c34024285b00 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -322,26 +322,6 @@ static struct ctl_table raid_table[] = {
{ }
};
-static struct ctl_table raid_dir_table[] = {
- {
- .procname = "raid",
- .maxlen = 0,
- .mode = S_IRUGO|S_IXUGO,
- .child = raid_table,
- },
- { }
-};
-
-static struct ctl_table raid_root_table[] = {
- {
- .procname = "dev",
- .maxlen = 0,
- .mode = 0555,
- .child = raid_dir_table,
- },
- { }
-};
-
static int start_readonly;
/*
@@ -9653,7 +9633,7 @@ static int __init md_init(void)
mdp_major = ret;
register_reboot_notifier(&md_notifier);
- raid_table_header = register_sysctl_table(raid_root_table);
+ raid_table_header = register_sysctl("dev/raid", raid_table);
md_geninit();
return 0;
diff --git a/drivers/scsi/scsi_sysctl.c b/drivers/scsi/scsi_sysctl.c
index 7259704a7f524ac49c60a63a72fc1db4a9a7903d..7f0914ea168f8937783ff8715a1739fec469f9a6 100644
--- a/drivers/scsi/scsi_sysctl.c
+++ b/drivers/scsi/scsi_sysctl.c
@@ -21,25 +21,11 @@ static struct ctl_table scsi_table[] = {
{ }
};
-static struct ctl_table scsi_dir_table[] = {
- { .procname = "scsi",
- .mode = 0555,
- .child = scsi_table },
- { }
-};
-
-static struct ctl_table scsi_root_table[] = {
- { .procname = "dev",
- .mode = 0555,
- .child = scsi_dir_table },
- { }
-};
-
static struct ctl_table_header *scsi_table_header;
int __init scsi_init_sysctl(void)
{
- scsi_table_header = register_sysctl_table(scsi_root_table);
+ scsi_table_header = register_sysctl("dev/scsi", scsi_table);
if (!scsi_table_header)
return -ENOMEM;
return 0;
diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c
index 617a7f4f07a807e446adde5b2369088e4b65dba3..586a1673459eb7ae6cb3eff60a901cf1459e722d 100644
--- a/drivers/xen/balloon.c
+++ b/drivers/xen/balloon.c
@@ -97,24 +97,6 @@ static struct ctl_table balloon_table[] = {
{ }
};
-static struct ctl_table balloon_root[] = {
- {
- .procname = "balloon",
- .mode = 0555,
- .child = balloon_table,
- },
- { }
-};
-
-static struct ctl_table xen_root[] = {
- {
- .procname = "xen",
- .mode = 0555,
- .child = balloon_root,
- },
- { }
-};
-
#else
#define xen_hotplug_unpopulated 0
#endif
@@ -747,7 +729,7 @@ static int __init balloon_init(void)
#ifdef CONFIG_XEN_BALLOON_MEMORY_HOTPLUG
set_online_page_callback(&xen_online_page);
register_memory_notifier(&xen_memory_nb);
- register_sysctl_table(xen_root);
+ register_sysctl_init("xen/balloon", balloon_table);
#endif
balloon_add_regions();
diff --git a/fs/Makefile b/fs/Makefile
index 05f89b5c962f88d01af0c4bf1e7e8e61301ac529..8d4736fcc766c12a417854576196bab5f5d1f171 100644
--- a/fs/Makefile
+++ b/fs/Makefile
@@ -6,7 +6,6 @@
# Rewritten to use lists instead of if-statements.
#
-obj-$(CONFIG_SYSCTL) += sysctls.o
obj-y := open.o read_write.o file_table.o super.o \
char_dev.o stat.o exec.o pipe.o namei.o fcntl.o \
@@ -50,7 +49,7 @@ obj-$(CONFIG_FS_MBCACHE) += mbcache.o
obj-$(CONFIG_FS_POSIX_ACL) += posix_acl.o
obj-$(CONFIG_NFS_COMMON) += nfs_common/
obj-$(CONFIG_COREDUMP) += coredump.o
-obj-$(CONFIG_SYSCTL) += drop_caches.o
+obj-$(CONFIG_SYSCTL) += drop_caches.o sysctls.o
obj-$(CONFIG_FHANDLE) += fhandle.o
obj-y += iomap/
diff --git a/fs/cachefiles/error_inject.c b/fs/cachefiles/error_inject.c
index 58f8aec964e4670ec8cd7175a7436ee8dc24bc70..18de8a876b02f671d4259489088ca56bbc0b648d 100644
--- a/fs/cachefiles/error_inject.c
+++ b/fs/cachefiles/error_inject.c
@@ -22,18 +22,9 @@ static struct ctl_table cachefiles_sysctls[] = {
{}
};
-static struct ctl_table cachefiles_sysctls_root[] = {
- {
- .procname = "cachefiles",
- .mode = 0555,
- .child = cachefiles_sysctls,
- },
- {}
-};
-
int __init cachefiles_register_error_injection(void)
{
- cachefiles_sysctl = register_sysctl_table(cachefiles_sysctls_root);
+ cachefiles_sysctl = register_sysctl("cachefiles", cachefiles_sysctls);
if (!cachefiles_sysctl)
return -ENOMEM;
return 0;
diff --git a/fs/coda/sysctl.c b/fs/coda/sysctl.c
index fda3b702b1c5aa2a4de2ded5e344f1baf63f42ab..a247c14aaab70d3d7497ea6f11734bacc0f2d1cd 100644
--- a/fs/coda/sysctl.c
+++ b/fs/coda/sysctl.c
@@ -39,19 +39,10 @@ static struct ctl_table coda_table[] = {
{}
};
-static struct ctl_table fs_table[] = {
- {
- .procname = "coda",
- .mode = 0555,
- .child = coda_table
- },
- {}
-};
-
void coda_sysctl_init(void)
{
if ( !fs_table_header )
- fs_table_header = register_sysctl_table(fs_table);
+ fs_table_header = register_sysctl("coda", coda_table);
}
void coda_sysctl_clean(void)
diff --git a/fs/lockd/svc.c b/fs/lockd/svc.c
index 9a47303b2cba6eae17098d8ce472b58ddb6b0f3b..bb94949bc2235d6fc4a8654b3f071ad4a9b13528 100644
--- a/fs/lockd/svc.c
+++ b/fs/lockd/svc.c
@@ -510,24 +510,6 @@ static struct ctl_table nlm_sysctls[] = {
{ }
};
-static struct ctl_table nlm_sysctl_dir[] = {
- {
- .procname = "nfs",
- .mode = 0555,
- .child = nlm_sysctls,
- },
- { }
-};
-
-static struct ctl_table nlm_sysctl_root[] = {
- {
- .procname = "fs",
- .mode = 0555,
- .child = nlm_sysctl_dir,
- },
- { }
-};
-
#endif /* CONFIG_SYSCTL */
/*
@@ -644,7 +626,7 @@ static int __init init_nlm(void)
#ifdef CONFIG_SYSCTL
err = -ENOMEM;
- nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root);
+ nlm_sysctl_table = register_sysctl("fs/nfs", nlm_sysctls);
if (nlm_sysctl_table == NULL)
goto err_sysctl;
#endif
diff --git a/fs/nfs/nfs4sysctl.c b/fs/nfs/nfs4sysctl.c
index c394e4447100d7e25f61ec61d5129369dff4b8e5..e776200e9a115e7af40d989c79a1ec845007b9e9 100644
--- a/fs/nfs/nfs4sysctl.c
+++ b/fs/nfs/nfs4sysctl.c
@@ -37,27 +37,10 @@ static struct ctl_table nfs4_cb_sysctls[] = {
{ }
};
-static struct ctl_table nfs4_cb_sysctl_dir[] = {
- {
- .procname = "nfs",
- .mode = 0555,
- .child = nfs4_cb_sysctls,
- },
- { }
-};
-
-static struct ctl_table nfs4_cb_sysctl_root[] = {
- {
- .procname = "fs",
- .mode = 0555,
- .child = nfs4_cb_sysctl_dir,
- },
- { }
-};
-
int nfs4_register_sysctl(void)
{
- nfs4_callback_sysctl_table = register_sysctl_table(nfs4_cb_sysctl_root);
+ nfs4_callback_sysctl_table = register_sysctl("fs/nfs",
+ nfs4_cb_sysctls);
if (nfs4_callback_sysctl_table == NULL)
return -ENOMEM;
return 0;
diff --git a/fs/nfs/sysctl.c b/fs/nfs/sysctl.c
index 7aea195ddb353772c736d2984f000231b3b51bee..f39e2089bc4c2a0330da15f8227787afd1744dea 100644
--- a/fs/nfs/sysctl.c
+++ b/fs/nfs/sysctl.c
@@ -32,27 +32,9 @@ static struct ctl_table nfs_cb_sysctls[] = {
{ }
};
-static struct ctl_table nfs_cb_sysctl_dir[] = {
- {
- .procname = "nfs",
- .mode = 0555,
- .child = nfs_cb_sysctls,
- },
- { }
-};
-
-static struct ctl_table nfs_cb_sysctl_root[] = {
- {
- .procname = "fs",
- .mode = 0555,
- .child = nfs_cb_sysctl_dir,
- },
- { }
-};
-
int nfs_register_sysctl(void)
{
- nfs_callback_sysctl_table = register_sysctl_table(nfs_cb_sysctl_root);
+ nfs_callback_sysctl_table = register_sysctl("fs/nfs", nfs_cb_sysctls);
if (nfs_callback_sysctl_table == NULL)
return -ENOMEM;
return 0;
diff --git a/fs/ntfs/sysctl.c b/fs/ntfs/sysctl.c
index a030d00af90c4a25fd9b9e85fde321f36c708f2f..174fe536a1c05d2da4b417bca062839fb3041f09 100644
--- a/fs/ntfs/sysctl.c
+++ b/fs/ntfs/sysctl.c
@@ -31,16 +31,6 @@ static struct ctl_table ntfs_sysctls[] = {
{}
};
-/* Define the parent directory /proc/sys/fs. */
-static struct ctl_table sysctls_root[] = {
- {
- .procname = "fs",
- .mode = 0555,
- .child = ntfs_sysctls
- },
- {}
-};
-
/* Storage for the sysctls header. */
static struct ctl_table_header *sysctls_root_table;
@@ -54,7 +44,7 @@ int ntfs_sysctl(int add)
{
if (add) {
BUG_ON(sysctls_root_table);
- sysctls_root_table = register_sysctl_table(sysctls_root);
+ sysctls_root_table = register_sysctl("fs", ntfs_sysctls);
if (!sysctls_root_table)
return -ENOMEM;
} else {
diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index 5851eb5bc7267e86e2746d63e4c9194e501da6ca..7ad07435828f3d5ddea5d297336637ebd33ba67d 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -1283,11 +1283,43 @@ static int insert_links(struct ctl_table_header *head)
return err;
}
+/* Find the directory for the ctl_table. If one is not found create it. */
+static struct ctl_dir *sysctl_mkdir_p(struct ctl_dir *dir, const char *path)
+{
+ const char *name, *nextname;
+
+ for (name = path; name; name = nextname) {
+ int namelen;
+ nextname = strchr(name, '/');
+ if (nextname) {
+ namelen = nextname - name;
+ nextname++;
+ } else {
+ namelen = strlen(name);
+ }
+ if (namelen == 0)
+ continue;
+
+ /*
+ * namelen ensures if name is "foo/bar/yay" only foo is
+ * registered first. We traverse as if using mkdir -p and
+ * return a ctl_dir for the last directory entry.
+ */
+ dir = get_subdir(dir, name, namelen);
+ if (IS_ERR(dir))
+ break;
+ }
+ return dir;
+}
+
/**
* __register_sysctl_table - register a leaf sysctl table
* @set: Sysctl tree to register on
* @path: The path to the directory the sysctl table is in.
- * @table: the top-level table structure
+ * @table: the top-level table structure without any child. This table
+ * should not be free'd after registration. So it should not be
+ * used on stack. It can either be a global or dynamically allocated
+ * by the caller and free'd later after sysctl unregistration.
*
* Register a sysctl table hierarchy. @table should be a filled in ctl_table
* array. A completely 0 filled entry terminates the table.
@@ -1308,9 +1340,12 @@ static int insert_links(struct ctl_table_header *head)
* proc_handler - the text handler routine (described below)
*
* extra1, extra2 - extra pointers usable by the proc handler routines
+ * XXX: we should eventually modify these to use long min / max [0]
+ * [0] https://lkml.kernel.org/87zgpte9o4.fsf@email.froward.int.ebiederm.org
*
* Leaf nodes in the sysctl tree will be represented by a single file
- * under /proc; non-leaf nodes will be represented by directories.
+ * under /proc; non-leaf nodes (where child is not NULL) are not allowed,
+ * sysctl_check_table() verifies this.
*
* There must be a proc_handler routine for any terminal nodes.
* Several default handlers are available to cover common cases -
@@ -1331,7 +1366,6 @@ struct ctl_table_header *__register_sysctl_table(
{
struct ctl_table_root *root = set->dir.header.root;
struct ctl_table_header *header;
- const char *name, *nextname;
struct ctl_dir *dir;
struct ctl_table *entry;
struct ctl_node *node;
@@ -1352,28 +1386,13 @@ struct ctl_table_header *__register_sysctl_table(
spin_lock(&sysctl_lock);
dir = &set->dir;
- /* Reference moved down the diretory tree get_subdir */
+ /* Reference moved down the directory tree get_subdir */
dir->header.nreg++;
spin_unlock(&sysctl_lock);
- /* Find the directory for the ctl_table */
- for (name = path; name; name = nextname) {
- int namelen;
- nextname = strchr(name, '/');
- if (nextname) {
- namelen = nextname - name;
- nextname++;
- } else {
- namelen = strlen(name);
- }
- if (namelen == 0)
- continue;
-
- dir = get_subdir(dir, name, namelen);
- if (IS_ERR(dir))
- goto fail;
- }
-
+ dir = sysctl_mkdir_p(dir, path);
+ if (IS_ERR(dir))
+ goto fail;
spin_lock(&sysctl_lock);
if (insert_header(dir, header))
goto fail_put_dir_locked;
@@ -1394,8 +1413,15 @@ struct ctl_table_header *__register_sysctl_table(
/**
* register_sysctl - register a sysctl table
- * @path: The path to the directory the sysctl table is in.
- * @table: the table structure
+ * @path: The path to the directory the sysctl table is in. If the path
+ * doesn't exist we will create it for you.
+ * @table: the table structure. The calller must ensure the life of the @table
+ * will be kept during the lifetime use of the syctl. It must not be freed
+ * until unregister_sysctl_table() is called with the given returned table
+ * with this registration. If your code is non modular then you don't need
+ * to call unregister_sysctl_table() and can instead use something like
+ * register_sysctl_init() which does not care for the result of the syctl
+ * registration.
*
* Register a sysctl table. @table should be a filled in ctl_table
* array. A completely 0 filled entry terminates the table.
@@ -1411,8 +1437,11 @@ EXPORT_SYMBOL(register_sysctl);
/**
* __register_sysctl_init() - register sysctl table to path
- * @path: path name for sysctl base
- * @table: This is the sysctl table that needs to be registered to the path
+ * @path: path name for sysctl base. If that path doesn't exist we will create
+ * it for you.
+ * @table: This is the sysctl table that needs to be registered to the path.
+ * The caller must ensure the life of the @table will be kept during the
+ * lifetime use of the sysctl.
* @table_name: The name of sysctl table, only used for log printing when
* registration fails
*
@@ -1424,10 +1453,7 @@ EXPORT_SYMBOL(register_sysctl);
* register_sysctl() failing on init are extremely low, and so for both reasons
* this function does not return any error as it is used by initialization code.
*
- * Context: Can only be called after your respective sysctl base path has been
- * registered. So for instance, most base directories are registered early on
- * init before init levels are processed through proc_sys_init() and
- * sysctl_init_bases().
+ * Context: if your base directory does not exist it will be created for you.
*/
void __init __register_sysctl_init(const char *path, struct ctl_table *table,
const char *table_name)
@@ -1557,6 +1583,7 @@ static int register_leaf_sysctl_tables(const char *path, char *pos,
*
* Register a sysctl table hierarchy. @table should be a filled in ctl_table
* array. A completely 0 filled entry terminates the table.
+ * We are slowly deprecating this call so avoid its use.
*
* See __register_sysctl_table for more details.
*/
@@ -1628,6 +1655,7 @@ struct ctl_table_header *__register_sysctl_paths(
*
* Register a sysctl table hierarchy. @table should be a filled in ctl_table
* array. A completely 0 filled entry terminates the table.
+ * We are slowly deprecating this caller so avoid future uses of it.
*
* See __register_sysctl_paths for more details.
*/
diff --git a/fs/userfaultfd.c b/fs/userfaultfd.c
index 40f9e1a2ebdd6d2d10a84167898af571ce2201e2..28e942feacc8b440bee4ebcf723211cea3fa5a84 100644
--- a/fs/userfaultfd.c
+++ b/fs/userfaultfd.c
@@ -32,7 +32,22 @@
#include <linux/swapops.h>
#include <linux/miscdevice.h>
-int sysctl_unprivileged_userfaultfd __read_mostly;
+static int sysctl_unprivileged_userfaultfd __read_mostly;
+
+#ifdef CONFIG_SYSCTL
+static struct ctl_table vm_userfaultfd_table[] = {
+ {
+ .procname = "unprivileged_userfaultfd",
+ .data = &sysctl_unprivileged_userfaultfd,
+ .maxlen = sizeof(sysctl_unprivileged_userfaultfd),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+ { }
+};
+#endif
static struct kmem_cache *userfaultfd_ctx_cachep __read_mostly;
@@ -2180,6 +2195,9 @@ static int __init userfaultfd_init(void)
0,
SLAB_HWCACHE_ALIGN|SLAB_PANIC,
init_once_userfaultfd_ctx);
+#ifdef CONFIG_SYSCTL
+ register_sysctl_init("vm", vm_userfaultfd_table);
+#endif
return 0;
}
__initcall(userfaultfd_init);
diff --git a/fs/xfs/xfs_sysctl.c b/fs/xfs/xfs_sysctl.c
index 546a6cd9672924dfed520bc7feb2df47f4dbfabc..fade337353931663ec17ff72a47d74b9053c901c 100644
--- a/fs/xfs/xfs_sysctl.c
+++ b/fs/xfs/xfs_sysctl.c
@@ -210,28 +210,10 @@ static struct ctl_table xfs_table[] = {
{}
};
-static struct ctl_table xfs_dir_table[] = {
- {
- .procname = "xfs",
- .mode = 0555,
- .child = xfs_table
- },
- {}
-};
-
-static struct ctl_table xfs_root_table[] = {
- {
- .procname = "fs",
- .mode = 0555,
- .child = xfs_dir_table
- },
- {}
-};
-
int
xfs_sysctl_register(void)
{
- xfs_table_header = register_sysctl_table(xfs_root_table);
+ xfs_table_header = register_sysctl("fs/xfs", xfs_table);
if (!xfs_table_header)
return -ENOMEM;
return 0;
diff --git a/include/linux/compaction.h b/include/linux/compaction.h
index 52a9ff65faee6d278dab43342ed38638795cd444..a6e512cfb670698d702b64cd424f535dba6d4573 100644
--- a/include/linux/compaction.h
+++ b/include/linux/compaction.h
@@ -81,13 +81,6 @@ static inline unsigned long compact_gap(unsigned int order)
}
#ifdef CONFIG_COMPACTION
-extern unsigned int sysctl_compaction_proactiveness;
-extern int sysctl_compaction_handler(struct ctl_table *table, int write,
- void *buffer, size_t *length, loff_t *ppos);
-extern int compaction_proactiveness_sysctl_handler(struct ctl_table *table,
- int write, void *buffer, size_t *length, loff_t *ppos);
-extern int sysctl_extfrag_threshold;
-extern int sysctl_compact_unevictable_allowed;
extern unsigned int extfrag_for_order(struct zone *zone, unsigned int order);
extern int fragmentation_index(struct zone *zone, unsigned int order);
diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h
index 7c977d234aba3c546fa2f61f35a349d8281001d0..4056b05d81edf6db0332640e5af3e6e2328b48d2 100644
--- a/include/linux/hugetlb.h
+++ b/include/linux/hugetlb.h
@@ -124,14 +124,6 @@ void hugepage_put_subpool(struct hugepage_subpool *spool);
void hugetlb_dup_vma_private(struct vm_area_struct *vma);
void clear_vma_resv_huge_pages(struct vm_area_struct *vma);
-int hugetlb_sysctl_handler(struct ctl_table *, int, void *, size_t *, loff_t *);
-int hugetlb_overcommit_handler(struct ctl_table *, int, void *, size_t *,
- loff_t *);
-int hugetlb_treat_movable_handler(struct ctl_table *, int, void *, size_t *,
- loff_t *);
-int hugetlb_mempolicy_sysctl_handler(struct ctl_table *, int, void *, size_t *,
- loff_t *);
-
int move_hugetlb_page_tables(struct vm_area_struct *vma,
struct vm_area_struct *new_vma,
unsigned long old_addr, unsigned long new_addr,
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 1f79667824eb60cf4ae79353ab014a9cc04eecc2..98da268b834a37c1eac55113327bbbf1a38a6049 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -3442,8 +3442,6 @@ int mf_dax_kill_procs(struct address_space *mapping, pgoff_t index,
extern int memory_failure(unsigned long pfn, int flags);
extern void memory_failure_queue_kick(int cpu);
extern int unpoison_memory(unsigned long pfn);
-extern int sysctl_memory_failure_early_kill;
-extern int sysctl_memory_failure_recovery;
extern void shake_page(struct page *p);
extern atomic_long_t num_poisoned_pages __read_mostly;
extern int soft_offline_page(unsigned long pfn, int flags);
diff --git a/include/linux/userfaultfd_k.h b/include/linux/userfaultfd_k.h
index 3767f18114ef9f48de2d138f9cac72ce0ede7321..fff49fec0258a1dd3312629617cc488dfa45c052 100644
--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -36,8 +36,6 @@
#define UFFD_SHARED_FCNTL_FLAGS (O_CLOEXEC | O_NONBLOCK)
#define UFFD_FLAGS_SET (EFD_SHARED_FCNTL_FLAGS)
-extern int sysctl_unprivileged_userfaultfd;
-
extern vm_fault_t handle_userfault(struct vm_fault *vmf, unsigned long reason);
/*
diff --git a/kernel/seccomp.c b/kernel/seccomp.c
index cebf26445f9e7cdcb4ea3669fbbb55591c3d33a7..d3e584065c7f748e734554ae6dfca090b061a7f4 100644
--- a/kernel/seccomp.c
+++ b/kernel/seccomp.c
@@ -2368,12 +2368,6 @@ static int seccomp_actions_logged_handler(struct ctl_table *ro_table, int write,
return ret;
}
-static struct ctl_path seccomp_sysctl_path[] = {
- { .procname = "kernel", },
- { .procname = "seccomp", },
- { }
-};
-
static struct ctl_table seccomp_sysctl_table[] = {
{
.procname = "actions_avail",
@@ -2392,14 +2386,7 @@ static struct ctl_table seccomp_sysctl_table[] = {
static int __init seccomp_sysctl_init(void)
{
- struct ctl_table_header *hdr;
-
- hdr = register_sysctl_paths(seccomp_sysctl_path, seccomp_sysctl_table);
- if (!hdr)
- pr_warn("sysctl registration failed\n");
- else
- kmemleak_not_leak(hdr);
-
+ register_sysctl_init("kernel/seccomp", seccomp_sysctl_table);
return 0;
}
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 1c240d2c99bcbdd14f75b32af17713ed7e5d3eec..bfe53e83552457448f128e5876204386cffc4015 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -42,7 +42,6 @@
#include <linux/highuid.h>
#include <linux/writeback.h>
#include <linux/ratelimit.h>
-#include <linux/compaction.h>
#include <linux/hugetlb.h>
#include <linux/initrd.h>
#include <linux/key.h>
@@ -746,27 +745,6 @@ int proc_dointvec(struct ctl_table *table, int write, void *buffer,
return do_proc_dointvec(table, write, buffer, lenp, ppos, NULL, NULL);
}
-#ifdef CONFIG_COMPACTION
-static int proc_dointvec_minmax_warn_RT_change(struct ctl_table *table,
- int write, void *buffer, size_t *lenp, loff_t *ppos)
-{
- int ret, old;
-
- if (!IS_ENABLED(CONFIG_PREEMPT_RT) || !write)
- return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
-
- old = *(int *)table->data;
- ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
- if (ret)
- return ret;
- if (old != *(int *)table->data)
- pr_warn_once("sysctl attribute %s changed by %s[%d]\n",
- table->procname, current->comm,
- task_pid_nr(current));
- return ret;
-}
-#endif
-
/**
* proc_douintvec - read a vector of unsigned integers
* @table: the sysctl table
@@ -2140,38 +2118,6 @@ static struct ctl_table vm_table[] = {
.extra1 = SYSCTL_ZERO,
.extra2 = SYSCTL_ONE,
},
-#endif
-#ifdef CONFIG_HUGETLB_PAGE
- {
- .procname = "nr_hugepages",
- .data = NULL,
- .maxlen = sizeof(unsigned long),
- .mode = 0644,
- .proc_handler = hugetlb_sysctl_handler,
- },
-#ifdef CONFIG_NUMA
- {
- .procname = "nr_hugepages_mempolicy",
- .data = NULL,
- .maxlen = sizeof(unsigned long),
- .mode = 0644,
- .proc_handler = &hugetlb_mempolicy_sysctl_handler,
- },
-#endif
- {
- .procname = "hugetlb_shm_group",
- .data = &sysctl_hugetlb_shm_group,
- .maxlen = sizeof(gid_t),
- .mode = 0644,
- .proc_handler = proc_dointvec,
- },
- {
- .procname = "nr_overcommit_hugepages",
- .data = NULL,
- .maxlen = sizeof(unsigned long),
- .mode = 0644,
- .proc_handler = hugetlb_overcommit_handler,
- },
#endif
{
.procname = "lowmem_reserve_ratio",
@@ -2189,43 +2135,6 @@ static struct ctl_table vm_table[] = {
.extra1 = SYSCTL_ONE,
.extra2 = SYSCTL_FOUR,
},
-#ifdef CONFIG_COMPACTION
- {
- .procname = "compact_memory",
- .data = NULL,
- .maxlen = sizeof(int),
- .mode = 0200,
- .proc_handler = sysctl_compaction_handler,
- },
- {
- .procname = "compaction_proactiveness",
- .data = &sysctl_compaction_proactiveness,
- .maxlen = sizeof(sysctl_compaction_proactiveness),
- .mode = 0644,
- .proc_handler = compaction_proactiveness_sysctl_handler,
- .extra1 = SYSCTL_ZERO,
- .extra2 = SYSCTL_ONE_HUNDRED,
- },
- {
- .procname = "extfrag_threshold",
- .data = &sysctl_extfrag_threshold,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = SYSCTL_ZERO,
- .extra2 = SYSCTL_ONE_THOUSAND,
- },
- {
- .procname = "compact_unevictable_allowed",
- .data = &sysctl_compact_unevictable_allowed,
- .maxlen = sizeof(int),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax_warn_RT_change,
- .extra1 = SYSCTL_ZERO,
- .extra2 = SYSCTL_ONE,
- },
-
-#endif /* CONFIG_COMPACTION */
{
.procname = "min_free_kbytes",
.data = &min_free_kbytes,
@@ -2382,26 +2291,6 @@ static struct ctl_table vm_table[] = {
.proc_handler = proc_dointvec,
.extra1 = SYSCTL_ZERO,
},
-#endif
-#ifdef CONFIG_MEMORY_FAILURE
- {
- .procname = "memory_failure_early_kill",
- .data = &sysctl_memory_failure_early_kill,
- .maxlen = sizeof(sysctl_memory_failure_early_kill),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = SYSCTL_ZERO,
- .extra2 = SYSCTL_ONE,
- },
- {
- .procname = "memory_failure_recovery",
- .data = &sysctl_memory_failure_recovery,
- .maxlen = sizeof(sysctl_memory_failure_recovery),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = SYSCTL_ZERO,
- .extra2 = SYSCTL_ONE,
- },
#endif
{
.procname = "user_reserve_kbytes",
@@ -2438,17 +2327,6 @@ static struct ctl_table vm_table[] = {
.extra1 = (void *)&mmap_rnd_compat_bits_min,
.extra2 = (void *)&mmap_rnd_compat_bits_max,
},
-#endif
-#ifdef CONFIG_USERFAULTFD
- {
- .procname = "unprivileged_userfaultfd",
- .data = &sysctl_unprivileged_userfaultfd,
- .maxlen = sizeof(sysctl_unprivileged_userfaultfd),
- .mode = 0644,
- .proc_handler = proc_dointvec_minmax,
- .extra1 = SYSCTL_ZERO,
- .extra2 = SYSCTL_ONE,
- },
#endif
{ }
};
diff --git a/kernel/utsname_sysctl.c b/kernel/utsname_sysctl.c
index f50398cb790d736c28d10fd03b70c5786ed07693..019e3a1566cf56095476bcdc371a3240506766fc 100644
--- a/kernel/utsname_sysctl.c
+++ b/kernel/utsname_sysctl.c
@@ -123,15 +123,6 @@ static struct ctl_table uts_kern_table[] = {
{}
};
-static struct ctl_table uts_root_table[] = {
- {
- .procname = "kernel",
- .mode = 0555,
- .child = uts_kern_table,
- },
- {}
-};
-
#ifdef CONFIG_PROC_SYSCTL
/*
* Notify userspace about a change in a certain entry of uts_kern_table,
@@ -147,7 +138,7 @@ void uts_proc_notify(enum uts_proc proc)
static int __init utsname_sysctl_init(void)
{
- register_sysctl_table(uts_root_table);
+ register_sysctl("kernel", uts_kern_table);
return 0;
}
diff --git a/mm/compaction.c b/mm/compaction.c
index 5a9501e0ae0174f3093d764b3e339d0dd0d40b7f..9ff71239b1fcd16b6868feda60e7874cd6efc843 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -1716,7 +1716,14 @@ typedef enum {
* Allow userspace to control policy on scanning the unevictable LRU for
* compactable pages.
*/
-int sysctl_compact_unevictable_allowed __read_mostly = CONFIG_COMPACT_UNEVICTABLE_DEFAULT;
+static int sysctl_compact_unevictable_allowed __read_mostly = CONFIG_COMPACT_UNEVICTABLE_DEFAULT;
+/*
+ * Tunable for proactive compaction. It determines how
+ * aggressively the kernel should compact memory in the
+ * background. It takes values in the range [0, 100].
+ */
+static unsigned int __read_mostly sysctl_compaction_proactiveness = 20;
+static int sysctl_extfrag_threshold = 500;
static inline void
update_fast_start_pfn(struct compact_control *cc, unsigned long pfn)
@@ -2572,8 +2579,6 @@ static enum compact_result compact_zone_order(struct zone *zone, int order,
return ret;
}
-int sysctl_extfrag_threshold = 500;
-
/**
* try_to_compact_pages - Direct compact to satisfy a high-order allocation
* @gfp_mask: The GFP mask of the current allocation
@@ -2730,14 +2735,7 @@ static void compact_nodes(void)
compact_node(nid);
}
-/*
- * Tunable for proactive compaction. It determines how
- * aggressively the kernel should compact memory in the
- * background. It takes values in the range [0, 100].
- */
-unsigned int __read_mostly sysctl_compaction_proactiveness = 20;
-
-int compaction_proactiveness_sysctl_handler(struct ctl_table *table, int write,
+static int compaction_proactiveness_sysctl_handler(struct ctl_table *table, int write,
void *buffer, size_t *length, loff_t *ppos)
{
int rc, nid;
@@ -2767,7 +2765,7 @@ int compaction_proactiveness_sysctl_handler(struct ctl_table *table, int write,
* This is the entry point for compacting all nodes via
* /proc/sys/vm/compact_memory
*/
-int sysctl_compaction_handler(struct ctl_table *table, int write,
+static int sysctl_compaction_handler(struct ctl_table *table, int write,
void *buffer, size_t *length, loff_t *ppos)
{
if (write)
@@ -3063,6 +3061,63 @@ static int kcompactd_cpu_online(unsigned int cpu)
return 0;
}
+static int proc_dointvec_minmax_warn_RT_change(struct ctl_table *table,
+ int write, void *buffer, size_t *lenp, loff_t *ppos)
+{
+ int ret, old;
+
+ if (!IS_ENABLED(CONFIG_PREEMPT_RT) || !write)
+ return proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+
+ old = *(int *)table->data;
+ ret = proc_dointvec_minmax(table, write, buffer, lenp, ppos);
+ if (ret)
+ return ret;
+ if (old != *(int *)table->data)
+ pr_warn_once("sysctl attribute %s changed by %s[%d]\n",
+ table->procname, current->comm,
+ task_pid_nr(current));
+ return ret;
+}
+
+static struct ctl_table vm_compaction[] = {
+ {
+ .procname = "compact_memory",
+ .data = NULL,
+ .maxlen = sizeof(int),
+ .mode = 0200,
+ .proc_handler = sysctl_compaction_handler,
+ },
+ {
+ .procname = "compaction_proactiveness",
+ .data = &sysctl_compaction_proactiveness,
+ .maxlen = sizeof(sysctl_compaction_proactiveness),
+ .mode = 0644,
+ .proc_handler = compaction_proactiveness_sysctl_handler,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE_HUNDRED,
+ },
+ {
+ .procname = "extfrag_threshold",
+ .data = &sysctl_extfrag_threshold,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE_THOUSAND,
+ },
+ {
+ .procname = "compact_unevictable_allowed",
+ .data = &sysctl_compact_unevictable_allowed,
+ .maxlen = sizeof(int),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax_warn_RT_change,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+ { }
+};
+
static int __init kcompactd_init(void)
{
int nid;
@@ -3078,6 +3133,7 @@ static int __init kcompactd_init(void)
for_each_node_state(nid, N_MEMORY)
kcompactd_run(nid);
+ register_sysctl_init("vm", vm_compaction);
return 0;
}
subsys_initcall(kcompactd_init)
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 245038a9fe4eaa27e51ad83ba0abf4cb2c403deb..a93e070ab175350c77385fc5aaa5091abb3731cd 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -4202,6 +4202,12 @@ static void __init hugetlb_sysfs_init(void)
hugetlb_register_all_nodes();
}
+#ifdef CONFIG_SYSCTL
+static void hugetlb_sysctl_init(void);
+#else
+static inline void hugetlb_sysctl_init(void) { }
+#endif
+
static int __init hugetlb_init(void)
{
int i;
@@ -4257,6 +4263,7 @@ static int __init hugetlb_init(void)
hugetlb_sysfs_init();
hugetlb_cgroup_file_init();
+ hugetlb_sysctl_init();
#ifdef CONFIG_SMP
num_fault_mutexes = roundup_pow_of_two(8 * num_possible_cpus());
@@ -4588,7 +4595,7 @@ static int hugetlb_sysctl_handler_common(bool obey_mempolicy,
return ret;
}
-int hugetlb_sysctl_handler(struct ctl_table *table, int write,
+static int hugetlb_sysctl_handler(struct ctl_table *table, int write,
void *buffer, size_t *length, loff_t *ppos)
{
@@ -4597,7 +4604,7 @@ int hugetlb_sysctl_handler(struct ctl_table *table, int write,
}
#ifdef CONFIG_NUMA
-int hugetlb_mempolicy_sysctl_handler(struct ctl_table *table, int write,
+static int hugetlb_mempolicy_sysctl_handler(struct ctl_table *table, int write,
void *buffer, size_t *length, loff_t *ppos)
{
return hugetlb_sysctl_handler_common(true, table, write,
@@ -4605,7 +4612,7 @@ int hugetlb_mempolicy_sysctl_handler(struct ctl_table *table, int write,
}
#endif /* CONFIG_NUMA */
-int hugetlb_overcommit_handler(struct ctl_table *table, int write,
+static int hugetlb_overcommit_handler(struct ctl_table *table, int write,
void *buffer, size_t *length, loff_t *ppos)
{
struct hstate *h = &default_hstate;
@@ -4634,6 +4641,44 @@ int hugetlb_overcommit_handler(struct ctl_table *table, int write,
return ret;
}
+static struct ctl_table hugetlb_table[] = {
+ {
+ .procname = "nr_hugepages",
+ .data = NULL,
+ .maxlen = sizeof(unsigned long),
+ .mode = 0644,
+ .proc_handler = hugetlb_sysctl_handler,
+ },
+#ifdef CONFIG_NUMA
+ {
+ .procname = "nr_hugepages_mempolicy",
+ .data = NULL,
+ .maxlen = sizeof(unsigned long),
+ .mode = 0644,
+ .proc_handler = &hugetlb_mempolicy_sysctl_handler,
+ },
+#endif
+ {
+ .procname = "hugetlb_shm_group",
+ .data = &sysctl_hugetlb_shm_group,
+ .maxlen = sizeof(gid_t),
+ .mode = 0644,
+ .proc_handler = proc_dointvec,
+ },
+ {
+ .procname = "nr_overcommit_hugepages",
+ .data = NULL,
+ .maxlen = sizeof(unsigned long),
+ .mode = 0644,
+ .proc_handler = hugetlb_overcommit_handler,
+ },
+ { }
+};
+
+static void hugetlb_sysctl_init(void)
+{
+ register_sysctl_init("vm", hugetlb_table);
+}
#endif /* CONFIG_SYSCTL */
void hugetlb_report_meminfo(struct seq_file *m)
diff --git a/mm/memory-failure.c b/mm/memory-failure.c
index fae9baf3be1622991bc13842c797255fa46462b7..10e60b6b2447f77b7eb92b30616d0a9a5ebf79b5 100644
--- a/mm/memory-failure.c
+++ b/mm/memory-failure.c
@@ -62,13 +62,14 @@
#include <linux/page-isolation.h>
#include <linux/pagewalk.h>
#include <linux/shmem_fs.h>
+#include <linux/sysctl.h>
#include "swap.h"
#include "internal.h"
#include "ras/ras_event.h"
-int sysctl_memory_failure_early_kill __read_mostly = 0;
+static int sysctl_memory_failure_early_kill __read_mostly;
-int sysctl_memory_failure_recovery __read_mostly = 1;
+static int sysctl_memory_failure_recovery __read_mostly = 1;
atomic_long_t num_poisoned_pages __read_mostly = ATOMIC_LONG_INIT(0);
@@ -122,6 +123,37 @@ const struct attribute_group memory_failure_attr_group = {
.attrs = memory_failure_attr,
};
+#ifdef CONFIG_SYSCTL
+static struct ctl_table memory_failure_table[] = {
+ {
+ .procname = "memory_failure_early_kill",
+ .data = &sysctl_memory_failure_early_kill,
+ .maxlen = sizeof(sysctl_memory_failure_early_kill),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+ {
+ .procname = "memory_failure_recovery",
+ .data = &sysctl_memory_failure_recovery,
+ .maxlen = sizeof(sysctl_memory_failure_recovery),
+ .mode = 0644,
+ .proc_handler = proc_dointvec_minmax,
+ .extra1 = SYSCTL_ZERO,
+ .extra2 = SYSCTL_ONE,
+ },
+ { }
+};
+
+static int __init memory_failure_sysctl_init(void)
+{
+ register_sysctl_init("vm", memory_failure_table);
+ return 0;
+}
+late_initcall(memory_failure_sysctl_init);
+#endif /* CONFIG_SYSCTL */
+
/*
* Return values:
* 1: the page is dissolved (if needed) and taken off from buddy,
diff --git a/security/apparmor/lsm.c b/security/apparmor/lsm.c
index cebba4824e60e5b6532664dafab2c33d53ada007..f431251ffb9113217142872edf12256b4ac6606d 100644
--- a/security/apparmor/lsm.c
+++ b/security/apparmor/lsm.c
@@ -1764,11 +1764,6 @@ static int apparmor_dointvec(struct ctl_table *table, int write,
return proc_dointvec(table, write, buffer, lenp, ppos);
}
-static struct ctl_path apparmor_sysctl_path[] = {
- { .procname = "kernel", },
- { }
-};
-
static struct ctl_table apparmor_sysctl_table[] = {
{
.procname = "unprivileged_userns_apparmor_policy",
@@ -1790,8 +1785,7 @@ static struct ctl_table apparmor_sysctl_table[] = {
static int __init apparmor_init_sysctl(void)
{
- return register_sysctl_paths(apparmor_sysctl_path,
- apparmor_sysctl_table) ? 0 : -ENOMEM;
+ return register_sysctl("kernel", apparmor_sysctl_table) ? 0 : -ENOMEM;
}
#else
static inline int apparmor_init_sysctl(void)
diff --git a/security/loadpin/loadpin.c b/security/loadpin/loadpin.c
index b9d773f11232db417298cbdf859331568d64b32f..ebae964f7cc9a47e020ef0f08f3f6139bd204f91 100644
--- a/security/loadpin/loadpin.c
+++ b/security/loadpin/loadpin.c
@@ -52,12 +52,6 @@ static bool deny_reading_verity_digests;
#endif
#ifdef CONFIG_SYSCTL
-static struct ctl_path loadpin_sysctl_path[] = {
- { .procname = "kernel", },
- { .procname = "loadpin", },
- { }
-};
-
static struct ctl_table loadpin_sysctl_table[] = {
{
.procname = "enforce",
@@ -262,7 +256,7 @@ static int __init loadpin_init(void)
enforce ? "" : "not ");
parse_exclude();
#ifdef CONFIG_SYSCTL
- if (!register_sysctl_paths(loadpin_sysctl_path, loadpin_sysctl_table))
+ if (!register_sysctl("kernel/loadpin", loadpin_sysctl_table))
pr_notice("sysctl registration failed!\n");
#endif
security_add_hooks(loadpin_hooks, ARRAY_SIZE(loadpin_hooks), "loadpin");
diff --git a/security/yama/yama_lsm.c b/security/yama/yama_lsm.c
index 478be269571ab167106032402139e2776a4e71d7..2503cf153d4ad80a28be9869c81fe17b6849897f 100644
--- a/security/yama/yama_lsm.c
+++ b/security/yama/yama_lsm.c
@@ -447,12 +447,6 @@ static int yama_dointvec_minmax(struct ctl_table *table, int write,
static int max_scope = YAMA_SCOPE_NO_ATTACH;
-static struct ctl_path yama_sysctl_path[] = {
- { .procname = "kernel", },
- { .procname = "yama", },
- { }
-};
-
static struct ctl_table yama_sysctl_table[] = {
{
.procname = "ptrace_scope",
@@ -467,7 +461,7 @@ static struct ctl_table yama_sysctl_table[] = {
};
static void __init yama_init_sysctl(void)
{
- if (!register_sysctl_paths(yama_sysctl_path, yama_sysctl_table))
+ if (!register_sysctl("kernel/yama", yama_sysctl_table))
panic("Yama: sysctl registration failed.\n");
}
#else