Merge branch 'for-rmk' of git://git.pengutronix.de/git/imx/linux-2.6

[net-next-2.6.git] / include / linux / workqueue.h

diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 4f9d277bcd9a5cd32ef35bc304bdbe3f6339a38a..25e02c941bac34a5322510f0461998b1054259fc 100644 (file)
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -25,18 +25,20 @@ typedef void (*work_func_t)(struct work_struct *work);
 
 enum {
        WORK_STRUCT_PENDING_BIT = 0,    /* work item is pending execution */
-       WORK_STRUCT_CWQ_BIT     = 1,    /* data points to cwq */
-       WORK_STRUCT_LINKED_BIT  = 2,    /* next work is linked to this one */
+       WORK_STRUCT_DELAYED_BIT = 1,    /* work item is delayed */
+       WORK_STRUCT_CWQ_BIT     = 2,    /* data points to cwq */
+       WORK_STRUCT_LINKED_BIT  = 3,    /* next work is linked to this one */
 #ifdef CONFIG_DEBUG_OBJECTS_WORK
-       WORK_STRUCT_STATIC_BIT  = 3,    /* static initializer (debugobjects) */
-       WORK_STRUCT_COLOR_SHIFT = 4,    /* color for workqueue flushing */
+       WORK_STRUCT_STATIC_BIT  = 4,    /* static initializer (debugobjects) */
+       WORK_STRUCT_COLOR_SHIFT = 5,    /* color for workqueue flushing */
 #else
-       WORK_STRUCT_COLOR_SHIFT = 3,    /* color for workqueue flushing */
+       WORK_STRUCT_COLOR_SHIFT = 4,    /* color for workqueue flushing */
 #endif
 
        WORK_STRUCT_COLOR_BITS  = 4,
 
        WORK_STRUCT_PENDING     = 1 << WORK_STRUCT_PENDING_BIT,
+       WORK_STRUCT_DELAYED     = 1 << WORK_STRUCT_DELAYED_BIT,
        WORK_STRUCT_CWQ         = 1 << WORK_STRUCT_CWQ_BIT,
        WORK_STRUCT_LINKED      = 1 << WORK_STRUCT_LINKED_BIT,
 #ifdef CONFIG_DEBUG_OBJECTS_WORK
@@ -59,8 +61,8 @@ enum {
 
        /*
         * Reserve 7 bits off of cwq pointer w/ debugobjects turned
-        * off.  This makes cwqs aligned to 128 bytes which isn't too
-        * excessive while allowing 15 workqueue flush colors.
+        * off.  This makes cwqs aligned to 256 bytes and allows 15
+        * workqueue flush colors.
         */
        WORK_STRUCT_FLAG_BITS   = WORK_STRUCT_COLOR_SHIFT +
                                  WORK_STRUCT_COLOR_BITS,
@@ -233,6 +235,10 @@ static inline unsigned int work_static(struct work_struct *work) { return 0; }
 #define work_clear_pending(work) \
        clear_bit(WORK_STRUCT_PENDING_BIT, work_data_bits(work))
 
+/*
+ * Workqueue flags and constants.  For details, please refer to
+ * Documentation/workqueue.txt.
+ */
 enum {
        WQ_NON_REENTRANT        = 1 << 0, /* guarantee non-reentrance */
        WQ_UNBOUND              = 1 << 1, /* not bound to any cpu */
@@ -241,6 +247,8 @@ enum {
        WQ_HIGHPRI              = 1 << 4, /* high priority */
        WQ_CPU_INTENSIVE        = 1 << 5, /* cpu instensive workqueue */
 
+       WQ_DYING                = 1 << 6, /* internal: workqueue is dying */
+
        WQ_MAX_ACTIVE           = 512,    /* I like 512, better ideas? */
        WQ_MAX_UNBOUND_PER_CPU  = 4,      /* 4 * #cpus for unbound wq */
        WQ_DFL_ACTIVE           = WQ_MAX_ACTIVE / 2,