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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/linux/sysctl.h
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@@ -37,32 +37,33 @@
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 struct ctl_table_header;
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 struct ctl_dir;
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-typedef int proc_handler (struct ctl_table *ctl, int write,
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-			  void __user *buffer, size_t *lenp, loff_t *ppos);
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+/* Keep the same order as in fs/proc/proc_sysctl.c */
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+#define SYSCTL_ZERO	((void *)&sysctl_vals[0])
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+#define SYSCTL_ONE	((void *)&sysctl_vals[1])
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+#define SYSCTL_INT_MAX	((void *)&sysctl_vals[2])
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-extern int proc_dostring(struct ctl_table *, int,
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-			 void __user *, size_t *, loff_t *);
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-extern int proc_dointvec(struct ctl_table *, int,
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-			 void __user *, size_t *, loff_t *);
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-extern int proc_douintvec(struct ctl_table *, int,
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-			 void __user *, size_t *, loff_t *);
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-extern int proc_dointvec_minmax(struct ctl_table *, int,
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-				void __user *, size_t *, loff_t *);
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-extern int proc_douintvec_minmax(struct ctl_table *table, int write,
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-				 void __user *buffer, size_t *lenp,
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-				 loff_t *ppos);
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-extern int proc_dointvec_jiffies(struct ctl_table *, int,
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-				 void __user *, size_t *, loff_t *);
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-extern int proc_dointvec_userhz_jiffies(struct ctl_table *, int,
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-					void __user *, size_t *, loff_t *);
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-extern int proc_dointvec_ms_jiffies(struct ctl_table *, int,
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-				    void __user *, size_t *, loff_t *);
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-extern int proc_doulongvec_minmax(struct ctl_table *, int,
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-				  void __user *, size_t *, loff_t *);
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-extern int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int,
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-				      void __user *, size_t *, loff_t *);
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-extern int proc_do_large_bitmap(struct ctl_table *, int,
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-				void __user *, size_t *, loff_t *);
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+extern const int sysctl_vals[];
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+
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+typedef int proc_handler(struct ctl_table *ctl, int write, void *buffer,
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+		size_t *lenp, loff_t *ppos);
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+
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+int proc_dostring(struct ctl_table *, int, void *, size_t *, loff_t *);
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+int proc_dointvec(struct ctl_table *, int, void *, size_t *, loff_t *);
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+int proc_douintvec(struct ctl_table *, int, void *, size_t *, loff_t *);
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+int proc_dointvec_minmax(struct ctl_table *, int, void *, size_t *, loff_t *);
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+int proc_douintvec_minmax(struct ctl_table *table, int write, void *buffer,
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+		size_t *lenp, loff_t *ppos);
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+int proc_dointvec_jiffies(struct ctl_table *, int, void *, size_t *, loff_t *);
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+int proc_dointvec_userhz_jiffies(struct ctl_table *, int, void *, size_t *,
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+		loff_t *);
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+int proc_dointvec_ms_jiffies(struct ctl_table *, int, void *, size_t *,
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+		loff_t *);
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+int proc_doulongvec_minmax(struct ctl_table *, int, void *, size_t *, loff_t *);
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+int proc_doulongvec_ms_jiffies_minmax(struct ctl_table *table, int, void *,
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+		size_t *, loff_t *);
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+int proc_do_large_bitmap(struct ctl_table *, int, void *, size_t *, loff_t *);
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+int proc_do_static_key(struct ctl_table *table, int write, void *buffer,
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+		size_t *lenp, loff_t *ppos);
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 /*
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  * Register a set of sysctl names by calling register_sysctl_table
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@@ -73,15 +74,13 @@
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  * sysctl names can be mirrored automatically under /proc/sys.  The
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  * procname supplied controls /proc naming.
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  *
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- * The table's mode will be honoured both for sys_sysctl(2) and
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- * proc-fs access.
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+ * The table's mode will be honoured for proc-fs access.
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  *
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  * Leaf nodes in the sysctl tree will be represented by a single file
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  * under /proc; non-leaf nodes will be represented by directories.  A
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  * null procname disables /proc mirroring at this node.
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  *
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- * sysctl(2) can automatically manage read and write requests through
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- * the sysctl table.  The data and maxlen fields of the ctl_table
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+ * The data and maxlen fields of the ctl_table
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  * struct enable minimal validation of the values being written to be
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  * performed, and the mode field allows minimal authentication.
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  * 
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@@ -110,8 +109,7 @@
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 	struct ctl_table_poll name = __CTL_TABLE_POLL_INITIALIZER(name)
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 /* A sysctl table is an array of struct ctl_table: */
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-struct ctl_table 
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-{
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+struct ctl_table {
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 	const char *procname;		/* Text ID for /proc/sys, or zero */
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 	void *data;
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 	int maxlen;
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@@ -130,8 +128,7 @@
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 /* struct ctl_table_header is used to maintain dynamic lists of
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    struct ctl_table trees. */
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-struct ctl_table_header
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-{
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+struct ctl_table_header {
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 	union {
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 		struct {
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 			struct ctl_table *ctl_table;
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@@ -198,8 +195,17 @@
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 void unregister_sysctl_table(struct ctl_table_header * table);
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 extern int sysctl_init(void);
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+void do_sysctl_args(void);
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+
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+extern int pwrsw_enabled;
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+extern int unaligned_enabled;
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+extern int unaligned_dump_stack;
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+extern int no_unaligned_warning;
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 extern struct ctl_table sysctl_mount_point[];
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+extern struct ctl_table random_table[];
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+extern struct ctl_table firmware_config_table[];
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+extern struct ctl_table epoll_table[];
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 #else /* CONFIG_SYSCTL */
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 static inline struct ctl_table_header *register_sysctl_table(struct ctl_table * table)
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@@ -228,9 +234,12 @@
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 {
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 }
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+static inline void do_sysctl_args(void)
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+{
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+}
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 #endif /* CONFIG_SYSCTL */
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-int sysctl_max_threads(struct ctl_table *table, int write,
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-		       void __user *buffer, size_t *lenp, loff_t *ppos);
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+int sysctl_max_threads(struct ctl_table *table, int write, void *buffer,
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+		size_t *lenp, loff_t *ppos);
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 #endif /* _LINUX_SYSCTL_H */