diff options
Diffstat (limited to 'fs')
| -rw-r--r-- | fs/afs/proc.c | 81 |
1 files changed, 11 insertions, 70 deletions
diff --git a/fs/afs/proc.c b/fs/afs/proc.c index 13df512aea9e..6edb56683b9a 100644 --- a/fs/afs/proc.c +++ b/fs/afs/proc.c @@ -201,23 +201,9 @@ static int afs_proc_cells_open(struct inode *inode, struct file *file) */ static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos) { - struct list_head *_p; - loff_t pos = *_pos; - /* lock the list against modification */ down_read(&afs_proc_cells_sem); - - /* allow for the header line */ - if (!pos) - return (void *) 1; - pos--; - - /* find the n'th element in the list */ - list_for_each(_p, &afs_proc_cells) - if (!pos--) - break; - - return _p != &afs_proc_cells ? _p : NULL; + return seq_list_start_head(&afs_proc_cells, *_pos); } /* @@ -225,14 +211,7 @@ static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos) */ static void *afs_proc_cells_next(struct seq_file *p, void *v, loff_t *pos) { - struct list_head *_p; - - (*pos)++; - - _p = v; - _p = v == (void *) 1 ? afs_proc_cells.next : _p->next; - - return _p != &afs_proc_cells ? _p : NULL; + return seq_list_next(v, &afs_proc_cells, pos); } /* @@ -250,7 +229,7 @@ static int afs_proc_cells_show(struct seq_file *m, void *v) { struct afs_cell *cell = list_entry(v, struct afs_cell, proc_link); - if (v == (void *) 1) { + if (v == &afs_proc_cells) { /* display header on line 1 */ seq_puts(m, "USE NAME\n"); return 0; @@ -503,26 +482,13 @@ static int afs_proc_cell_volumes_release(struct inode *inode, struct file *file) */ static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos) { - struct list_head *_p; struct afs_cell *cell = m->private; - loff_t pos = *_pos; _enter("cell=%p pos=%Ld", cell, *_pos); /* lock the list against modification */ down_read(&cell->vl_sem); - - /* allow for the header line */ - if (!pos) - return (void *) 1; - pos--; - - /* find the n'th element in the list */ - list_for_each(_p, &cell->vl_list) - if (!pos--) - break; - - return _p != &cell->vl_list ? _p : NULL; + return seq_list_start_head(&cell->vl_list, *_pos); } /* @@ -531,17 +497,10 @@ static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos) static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v, loff_t *_pos) { - struct list_head *_p; struct afs_cell *cell = p->private; _enter("cell=%p pos=%Ld", cell, *_pos); - - (*_pos)++; - - _p = v; - _p = (v == (void *) 1) ? cell->vl_list.next : _p->next; - - return (_p != &cell->vl_list) ? _p : NULL; + return seq_list_next(v, &cell->vl_list, _pos); } /* @@ -569,11 +528,12 @@ const char afs_vlocation_states[][4] = { */ static int afs_proc_cell_volumes_show(struct seq_file *m, void *v) { + struct afs_cell *cell = m->private; struct afs_vlocation *vlocation = list_entry(v, struct afs_vlocation, link); /* display header on line 1 */ - if (v == (void *) 1) { + if (v == &cell->vl_list) { seq_puts(m, "USE STT VLID[0] VLID[1] VLID[2] NAME\n"); return 0; } @@ -734,26 +694,13 @@ static int afs_proc_cell_servers_release(struct inode *inode, static void *afs_proc_cell_servers_start(struct seq_file *m, loff_t *_pos) __acquires(m->private->servers_lock) { - struct list_head *_p; struct afs_cell *cell = m->private; - loff_t pos = *_pos; _enter("cell=%p pos=%Ld", cell, *_pos); /* lock the list against modification */ read_lock(&cell->servers_lock); - - /* allow for the header line */ - if (!pos) - return (void *) 1; - pos--; - - /* find the n'th element in the list */ - list_for_each(_p, &cell->servers) - if (!pos--) - break; - - return _p != &cell->servers ? _p : NULL; + return seq_list_start_head(&cell->servers, *_pos); } /* @@ -762,17 +709,10 @@ static void *afs_proc_cell_servers_start(struct seq_file *m, loff_t *_pos) static void *afs_proc_cell_servers_next(struct seq_file *p, void *v, loff_t *_pos) { - struct list_head *_p; struct afs_cell *cell = p->private; _enter("cell=%p pos=%Ld", cell, *_pos); - - (*_pos)++; - - _p = v; - _p = v == (void *) 1 ? cell->servers.next : _p->next; - - return _p != &cell->servers ? _p : NULL; + return seq_list_next(v, &cell->servers, _pos); } /* @@ -791,11 +731,12 @@ static void afs_proc_cell_servers_stop(struct seq_file *p, void *v) */ static int afs_proc_cell_servers_show(struct seq_file *m, void *v) { + struct afs_cell *cell = m->private; struct afs_server *server = list_entry(v, struct afs_server, link); char ipaddr[20]; /* display header on line 1 */ - if (v == (void *) 1) { + if (v == &cell->servers) { seq_puts(m, "USE ADDR STATE\n"); return 0; } |