DSS2: Small VRFB context allocation bug fixed

[pandora-kernel.git] / fs / seq_file.c

diff --git a/fs/seq_file.c b/fs/seq_file.c
index 3f54dbd..bd20f7f 100644 (file)
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -108,9 +108,9 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
                        goto Done;
        }
        /* we need at least one record in buffer */
+       pos = m->index;
+       p = m->op->start(m, &pos);
        while (1) {
-               pos = m->index;
-               p = m->op->start(m, &pos);
                err = PTR_ERR(p);
                if (!p || IS_ERR(p))
                        break;
@@ -119,6 +119,11 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
                        break;
                if (unlikely(err))
                        m->count = 0;
+               if (unlikely(!m->count)) {
+                       p = m->op->next(m, p, &pos);
+                       m->index = pos;
+                       continue;
+               }
                if (m->count < m->size)
                        goto Fill;
                m->op->stop(m, p);
@@ -128,6 +133,8 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
                        goto Enomem;
                m->count = 0;
                m->version = 0;
+               pos = m->index;
+               p = m->op->start(m, &pos);
        }
        m->op->stop(m, p);
        m->count = 0;
@@ -443,6 +450,20 @@ int seq_dentry(struct seq_file *m, struct dentry *dentry, char *esc)
        return -1;
 }
 
+int seq_bitmap(struct seq_file *m, unsigned long *bits, unsigned int nr_bits)
+{
+       size_t len = bitmap_scnprintf_len(nr_bits);
+
+       if (m->count + len < m->size) {
+               bitmap_scnprintf(m->buf + m->count, m->size - m->count,
+                                bits, nr_bits);
+               m->count += len;
+               return 0;
+       }
+       m->count = m->size;
+       return -1;
+}
+
 static void *single_start(struct seq_file *p, loff_t *pos)
 {
        return NULL + (*pos == 0);