diff options
Diffstat (limited to 'fs/seq_file.c')
-rw-r--r-- | fs/seq_file.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/fs/seq_file.c b/fs/seq_file.c index 5d54205e486b..bd20f7f5a933 100644 --- 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) | |||
108 | goto Done; | 108 | goto Done; |
109 | } | 109 | } |
110 | /* we need at least one record in buffer */ | 110 | /* we need at least one record in buffer */ |
111 | pos = m->index; | ||
112 | p = m->op->start(m, &pos); | ||
111 | while (1) { | 113 | while (1) { |
112 | pos = m->index; | ||
113 | p = m->op->start(m, &pos); | ||
114 | err = PTR_ERR(p); | 114 | err = PTR_ERR(p); |
115 | if (!p || IS_ERR(p)) | 115 | if (!p || IS_ERR(p)) |
116 | break; | 116 | break; |
@@ -119,6 +119,11 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos) | |||
119 | break; | 119 | break; |
120 | if (unlikely(err)) | 120 | if (unlikely(err)) |
121 | m->count = 0; | 121 | m->count = 0; |
122 | if (unlikely(!m->count)) { | ||
123 | p = m->op->next(m, p, &pos); | ||
124 | m->index = pos; | ||
125 | continue; | ||
126 | } | ||
122 | if (m->count < m->size) | 127 | if (m->count < m->size) |
123 | goto Fill; | 128 | goto Fill; |
124 | m->op->stop(m, p); | 129 | 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) | |||
128 | goto Enomem; | 133 | goto Enomem; |
129 | m->count = 0; | 134 | m->count = 0; |
130 | m->version = 0; | 135 | m->version = 0; |
136 | pos = m->index; | ||
137 | p = m->op->start(m, &pos); | ||
131 | } | 138 | } |
132 | m->op->stop(m, p); | 139 | m->op->stop(m, p); |
133 | m->count = 0; | 140 | m->count = 0; |