USB: musb: allow the Blackfin vrsel gpio to be active low

[safe/jmp/linux-2.6] / include / linux / seq_file.h

diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h
index 952e018..03c0232 100644 (file)
--- a/include/linux/seq_file.h
+++ b/include/linux/seq_file.h
@@ -19,6 +19,7 @@ struct seq_file {
        size_t from;
        size_t count;
        loff_t index;
+       loff_t read_pos;
        u64 version;
        struct mutex lock;
        const struct seq_operations *op;
@@ -34,6 +35,44 @@ struct seq_operations {
 
 #define SEQ_SKIP 1
 
+/**
+ * seq_get_buf - get buffer to write arbitrary data to
+ * @m: the seq_file handle
+ * @bufp: the beginning of the buffer is stored here
+ *
+ * Return the number of bytes available in the buffer, or zero if
+ * there's no space.
+ */
+static inline size_t seq_get_buf(struct seq_file *m, char **bufp)
+{
+       BUG_ON(m->count > m->size);
+       if (m->count < m->size)
+               *bufp = m->buf + m->count;
+       else
+               *bufp = NULL;
+
+       return m->size - m->count;
+}
+
+/**
+ * seq_commit - commit data to the buffer
+ * @m: the seq_file handle
+ * @num: the number of bytes to commit
+ *
+ * Commit @num bytes of data written to a buffer previously acquired
+ * by seq_buf_get.  To signal an error condition, or that the data
+ * didn't fit in the available space, pass a negative @num value.
+ */
+static inline void seq_commit(struct seq_file *m, int num)
+{
+       if (num < 0) {
+               m->count = m->size;
+       } else {
+               BUG_ON(m->count + num > m->size);
+               m->count += num;
+       }
+}
+
 char *mangle_path(char *s, char *p, char *esc);
 int seq_open(struct file *, const struct seq_operations *);
 ssize_t seq_read(struct file *, char __user *, size_t, loff_t *);
@@ -42,6 +81,7 @@ int seq_release(struct inode *, struct file *);
 int seq_escape(struct seq_file *, const char *, const char *);
 int seq_putc(struct seq_file *m, char c);
 int seq_puts(struct seq_file *m, const char *s);
+int seq_write(struct seq_file *seq, const void *data, size_t len);
 
 int seq_printf(struct seq_file *, const char *, ...)
        __attribute__ ((format (printf,2,3)));
@@ -54,7 +94,7 @@ int seq_bitmap(struct seq_file *m, const unsigned long *bits,
                                   unsigned int nr_bits);
 static inline int seq_cpumask(struct seq_file *m, const struct cpumask *mask)
 {
-       return seq_bitmap(m, mask->bits, NR_CPUS);
+       return seq_bitmap(m, cpumask_bits(mask), nr_cpu_ids);
 }
 
 static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask)
@@ -62,12 +102,13 @@ static inline int seq_nodemask(struct seq_file *m, nodemask_t *mask)
        return seq_bitmap(m, mask->bits, MAX_NUMNODES);
 }
 
-int seq_bitmap_list(struct seq_file *m, unsigned long *bits,
+int seq_bitmap_list(struct seq_file *m, const unsigned long *bits,
                unsigned int nr_bits);
 
-static inline int seq_cpumask_list(struct seq_file *m, cpumask_t *mask)
+static inline int seq_cpumask_list(struct seq_file *m,
+                                  const struct cpumask *mask)
 {
-       return seq_bitmap_list(m, mask->bits, NR_CPUS);
+       return seq_bitmap_list(m, cpumask_bits(mask), nr_cpu_ids);
 }
 
 static inline int seq_nodemask_list(struct seq_file *m, nodemask_t *mask)
@@ -94,4 +135,22 @@ extern struct list_head *seq_list_start_head(struct list_head *head,
 extern struct list_head *seq_list_next(void *v, struct list_head *head,
                loff_t *ppos);
 
+/*
+ * Helpers for iteration over hlist_head-s in seq_files
+ */
+
+extern struct hlist_node *seq_hlist_start(struct hlist_head *head,
+                                         loff_t pos);
+extern struct hlist_node *seq_hlist_start_head(struct hlist_head *head,
+                                              loff_t pos);
+extern struct hlist_node *seq_hlist_next(void *v, struct hlist_head *head,
+                                        loff_t *ppos);
+
+extern struct hlist_node *seq_hlist_start_rcu(struct hlist_head *head,
+                                             loff_t pos);
+extern struct hlist_node *seq_hlist_start_head_rcu(struct hlist_head *head,
+                                                  loff_t pos);
+extern struct hlist_node *seq_hlist_next_rcu(void *v,
+                                                  struct hlist_head *head,
+                                                  loff_t *ppos);
 #endif