From 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Mon, 13 May 2024 10:30:14 +0000
Subject: [PATCH] modify sin led gpio
---
kernel/include/linux/workqueue.h | 69 +++++++++++++++++-----------------
1 files changed, 34 insertions(+), 35 deletions(-)
diff --git a/kernel/include/linux/workqueue.h b/kernel/include/linux/workqueue.h
index 342f374..30905a6 100644
--- a/kernel/include/linux/workqueue.h
+++ b/kernel/include/linux/workqueue.h
@@ -63,7 +63,7 @@
WORK_CPU_UNBOUND = NR_CPUS,
/*
- * Reserve 7 bits off of pwq pointer w/ debugobjects turned off.
+ * Reserve 8 bits off of pwq pointer w/ debugobjects turned off.
* This makes pwqs aligned to 256 bytes and allows 15 workqueue
* flush colors.
*/
@@ -74,7 +74,6 @@
WORK_OFFQ_FLAG_BASE = WORK_STRUCT_COLOR_SHIFT,
__WORK_OFFQ_CANCELING = WORK_OFFQ_FLAG_BASE,
- WORK_OFFQ_CANCELING = (1 << __WORK_OFFQ_CANCELING),
/*
* When a work item is off queue, its high bits point to the last
@@ -85,12 +84,6 @@
WORK_OFFQ_POOL_SHIFT = WORK_OFFQ_FLAG_BASE + WORK_OFFQ_FLAG_BITS,
WORK_OFFQ_LEFT = BITS_PER_LONG - WORK_OFFQ_POOL_SHIFT,
WORK_OFFQ_POOL_BITS = WORK_OFFQ_LEFT <= 31 ? WORK_OFFQ_LEFT : 31,
- WORK_OFFQ_POOL_NONE = (1LU << WORK_OFFQ_POOL_BITS) - 1,
-
- /* convenience constants */
- WORK_STRUCT_FLAG_MASK = (1UL << WORK_STRUCT_FLAG_BITS) - 1,
- WORK_STRUCT_WQ_DATA_MASK = ~WORK_STRUCT_FLAG_MASK,
- WORK_STRUCT_NO_POOL = (unsigned long)WORK_OFFQ_POOL_NONE << WORK_OFFQ_POOL_SHIFT,
/* bit mask for work_busy() return values */
WORK_BUSY_PENDING = 1 << 0,
@@ -99,6 +92,14 @@
/* maximum string length for set_worker_desc() */
WORKER_DESC_LEN = 24,
};
+
+/* Convenience constants - of type 'unsigned long', not 'enum'! */
+#define WORK_OFFQ_CANCELING (1ul << __WORK_OFFQ_CANCELING)
+#define WORK_OFFQ_POOL_NONE ((1ul << WORK_OFFQ_POOL_BITS) - 1)
+#define WORK_STRUCT_NO_POOL (WORK_OFFQ_POOL_NONE << WORK_OFFQ_POOL_SHIFT)
+
+#define WORK_STRUCT_FLAG_MASK ((1ul << WORK_STRUCT_FLAG_BITS) - 1)
+#define WORK_STRUCT_WQ_DATA_MASK (~WORK_STRUCT_FLAG_MASK)
struct work_struct {
atomic_long_t data;
@@ -396,43 +397,23 @@
extern struct workqueue_struct *system_power_efficient_wq;
extern struct workqueue_struct *system_freezable_power_efficient_wq;
-extern struct workqueue_struct *
-__alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
- struct lock_class_key *key, const char *lock_name, ...) __printf(1, 6);
-
/**
* alloc_workqueue - allocate a workqueue
* @fmt: printf format for the name of the workqueue
* @flags: WQ_* flags
* @max_active: max in-flight work items, 0 for default
- * @args...: args for @fmt
+ * remaining args: args for @fmt
*
* Allocate a workqueue with the specified parameters. For detailed
* information on WQ_* flags, please refer to
* Documentation/core-api/workqueue.rst.
*
- * The __lock_name macro dance is to guarantee that single lock_class_key
- * doesn't end up with different namesm, which isn't allowed by lockdep.
- *
* RETURNS:
* Pointer to the allocated workqueue on success, %NULL on failure.
*/
-#ifdef CONFIG_LOCKDEP
-#define alloc_workqueue(fmt, flags, max_active, args...) \
-({ \
- static struct lock_class_key __key; \
- const char *__lock_name; \
- \
- __lock_name = "(wq_completion)"#fmt#args; \
- \
- __alloc_workqueue_key((fmt), (flags), (max_active), \
- &__key, __lock_name, ##args); \
-})
-#else
-#define alloc_workqueue(fmt, flags, max_active, args...) \
- __alloc_workqueue_key((fmt), (flags), (max_active), \
- NULL, NULL, ##args)
-#endif
+struct workqueue_struct *alloc_workqueue(const char *fmt,
+ unsigned int flags,
+ int max_active, ...);
/**
* alloc_ordered_workqueue - allocate an ordered workqueue
@@ -461,7 +442,7 @@
extern void destroy_workqueue(struct workqueue_struct *wq);
-struct workqueue_attrs *alloc_workqueue_attrs(gfp_t gfp_mask);
+struct workqueue_attrs *alloc_workqueue_attrs(void);
void free_workqueue_attrs(struct workqueue_attrs *attrs);
int apply_workqueue_attrs(struct workqueue_struct *wq,
const struct workqueue_attrs *attrs);
@@ -469,6 +450,8 @@
extern bool queue_work_on(int cpu, struct workqueue_struct *wq,
struct work_struct *work);
+extern bool queue_work_node(int node, struct workqueue_struct *wq,
+ struct work_struct *work);
extern bool queue_delayed_work_on(int cpu, struct workqueue_struct *wq,
struct delayed_work *work, unsigned long delay);
extern bool mod_delayed_work_on(int cpu, struct workqueue_struct *wq,
@@ -511,6 +494,19 @@
*
* We queue the work to the CPU on which it was submitted, but if the CPU dies
* it can be processed by another CPU.
+ *
+ * Memory-ordering properties: If it returns %true, guarantees that all stores
+ * preceding the call to queue_work() in the program order will be visible from
+ * the CPU which will execute @work by the time such work executes, e.g.,
+ *
+ * { x is initially 0 }
+ *
+ * CPU0 CPU1
+ *
+ * WRITE_ONCE(x, 1); [ @work is being executed ]
+ * r0 = queue_work(wq, work); r1 = READ_ONCE(x);
+ *
+ * Forbids: r0 == true && r1 == 0
*/
static inline bool queue_work(struct workqueue_struct *wq,
struct work_struct *work)
@@ -570,6 +566,9 @@
* This puts a job in the kernel-global workqueue if it was not already
* queued and leaves it in the same position on the kernel-global
* workqueue otherwise.
+ *
+ * Shares the same memory-ordering properties of queue_work(), cf. the
+ * DocBook header of queue_work().
*/
static inline bool schedule_work(struct work_struct *work)
{
@@ -673,7 +672,7 @@
int workqueue_offline_cpu(unsigned int cpu);
#endif
-int __init workqueue_init_early(void);
-int __init workqueue_init(void);
+void __init workqueue_init_early(void);
+void __init workqueue_init(void);
#endif
--
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