sched: tune multi-core idle balancing

[sfrench/cifs-2.6.git] / include / linux / relay.h

diff --git a/include/linux/relay.h b/include/linux/relay.h
index c6a48bfc8b14700b5dee19e9b6630744c5187129..6cd8c4425fc7d5dfb400b37b436c960bf6e163d7 100644 (file)
--- a/include/linux/relay.h
+++ b/include/linux/relay.h
@@ -12,6 +12,7 @@
 
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <linux/timer.h>
 #include <linux/wait.h>
 #include <linux/list.h>
 #include <linux/fs.h>
@@ -24,7 +25,7 @@
 /*
  * Tracks changes to rchan/rchan_buf structs
  */
-#define RELAYFS_CHANNEL_VERSION                6
+#define RELAYFS_CHANNEL_VERSION                7
 
 /*
  * Per-cpu relay channel buffer
@@ -38,7 +39,7 @@ struct rchan_buf
        size_t subbufs_consumed;        /* count of sub-buffers consumed */
        struct rchan *chan;             /* associated channel */
        wait_queue_head_t read_wait;    /* reader wait queue */
-       struct delayed_work wake_readers; /* reader wake-up work struct */
+       struct timer_list timer;        /* reader wake-up timer */
        struct dentry *dentry;          /* channel file dentry */
        struct kref kref;               /* channel buffer refcount */
        struct page **page_array;       /* array of current buffer pages */
@@ -64,6 +65,10 @@ struct rchan
        void *private_data;             /* for user-defined data */
        size_t last_toobig;             /* tried to log event > subbuf size */
        struct rchan_buf *buf[NR_CPUS]; /* per-cpu channel buffers */
+       int is_global;                  /* One global buffer ? */
+       struct list_head list;          /* for channel list */
+       struct dentry *parent;          /* parent dentry passed to open */
+       char base_filename[NAME_MAX];   /* saved base filename */
 };
 
 /*
@@ -162,7 +167,8 @@ struct rchan *relay_open(const char *base_filename,
                         struct dentry *parent,
                         size_t subbuf_size,
                         size_t n_subbufs,
-                        struct rchan_callbacks *cb);
+                        struct rchan_callbacks *cb,
+                        void *private_data);
 extern void relay_close(struct rchan *chan);
 extern void relay_flush(struct rchan *chan);
 extern void relay_subbufs_consumed(struct rchan *chan,