diff options
Diffstat (limited to 'fs/afs/proc.c')
| -rw-r--r-- | fs/afs/proc.c | 161 |
1 files changed, 58 insertions, 103 deletions
diff --git a/fs/afs/proc.c b/fs/afs/proc.c index ae6b85b1e484..5ebcc0cd3dd3 100644 --- a/fs/afs/proc.c +++ b/fs/afs/proc.c @@ -1,4 +1,4 @@ -/* proc.c: /proc interface for AFS +/* /proc interface for AFS * * Copyright (C) 2002 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) @@ -130,7 +130,6 @@ static const struct file_operations afs_proc_cell_servers_fops = { .release = afs_proc_cell_servers_release, }; -/*****************************************************************************/ /* * initialise the /proc/fs/afs/ directory */ @@ -142,47 +141,43 @@ int afs_proc_init(void) proc_afs = proc_mkdir("fs/afs", NULL); if (!proc_afs) - goto error; + goto error_dir; proc_afs->owner = THIS_MODULE; p = create_proc_entry("cells", 0, proc_afs); if (!p) - goto error_proc; + goto error_cells; p->proc_fops = &afs_proc_cells_fops; p->owner = THIS_MODULE; p = create_proc_entry("rootcell", 0, proc_afs); if (!p) - goto error_cells; + goto error_rootcell; p->proc_fops = &afs_proc_rootcell_fops; p->owner = THIS_MODULE; _leave(" = 0"); return 0; - error_cells: +error_rootcell: remove_proc_entry("cells", proc_afs); - error_proc: +error_cells: remove_proc_entry("fs/afs", NULL); - error: +error_dir: _leave(" = -ENOMEM"); return -ENOMEM; +} -} /* end afs_proc_init() */ - -/*****************************************************************************/ /* * clean up the /proc/fs/afs/ directory */ void afs_proc_cleanup(void) { + remove_proc_entry("rootcell", proc_afs); remove_proc_entry("cells", proc_afs); - remove_proc_entry("fs/afs", NULL); +} -} /* end afs_proc_cleanup() */ - -/*****************************************************************************/ /* * open "/proc/fs/afs/cells" which provides a summary of extant cells */ @@ -199,9 +194,8 @@ static int afs_proc_cells_open(struct inode *inode, struct file *file) m->private = PDE(inode)->data; return 0; -} /* end afs_proc_cells_open() */ +} -/*****************************************************************************/ /* * set up the iterator to start reading from the cells list and return the * first item @@ -225,9 +219,8 @@ static void *afs_proc_cells_start(struct seq_file *m, loff_t *_pos) break; return _p != &afs_proc_cells ? _p : NULL; -} /* end afs_proc_cells_start() */ +} -/*****************************************************************************/ /* * move to next cell in cells list */ @@ -241,19 +234,16 @@ static void *afs_proc_cells_next(struct seq_file *p, void *v, loff_t *pos) _p = v == (void *) 1 ? afs_proc_cells.next : _p->next; return _p != &afs_proc_cells ? _p : NULL; -} /* end afs_proc_cells_next() */ +} -/*****************************************************************************/ /* * clean up after reading from the cells list */ static void afs_proc_cells_stop(struct seq_file *p, void *v) { up_read(&afs_proc_cells_sem); +} -} /* end afs_proc_cells_stop() */ - -/*****************************************************************************/ /* * display a header line followed by a load of cell lines */ @@ -261,19 +251,18 @@ static int afs_proc_cells_show(struct seq_file *m, void *v) { struct afs_cell *cell = list_entry(v, struct afs_cell, proc_link); - /* display header on line 1 */ if (v == (void *) 1) { + /* display header on line 1 */ seq_puts(m, "USE NAME\n"); return 0; } /* display one cell per line on subsequent lines */ - seq_printf(m, "%3d %s\n", atomic_read(&cell->usage), cell->name); - + seq_printf(m, "%3d %s\n", + atomic_read(&cell->usage), cell->name); return 0; -} /* end afs_proc_cells_show() */ +} -/*****************************************************************************/ /* * handle writes to /proc/fs/afs/cells * - to add cells: echo "add <cellname> <IP>[:<IP>][:<IP>]" @@ -331,25 +320,23 @@ static ssize_t afs_proc_cells_write(struct file *file, const char __user *buf, goto done; printk("kAFS: Added new cell '%s'\n", name); - } - else { + } else { goto inval; } ret = size; - done: +done: kfree(kbuf); _leave(" = %d", ret); return ret; - inval: +inval: ret = -EINVAL; printk("kAFS: Invalid Command on /proc/fs/afs/cells file\n"); goto done; -} /* end afs_proc_cells_write() */ +} -/*****************************************************************************/ /* * Stubs for /proc/fs/afs/rootcell */ @@ -369,7 +356,6 @@ static ssize_t afs_proc_rootcell_read(struct file *file, char __user *buf, return 0; } -/*****************************************************************************/ /* * handle writes to /proc/fs/afs/rootcell * - to initialize rootcell: echo "cell.name:192.168.231.14" @@ -407,14 +393,13 @@ static ssize_t afs_proc_rootcell_write(struct file *file, if (ret >= 0) ret = size; /* consume everything, always */ - infault: +infault: kfree(kbuf); - nomem: +nomem: _leave(" = %d", ret); return ret; -} /* end afs_proc_rootcell_write() */ +} -/*****************************************************************************/ /* * initialise /proc/fs/afs/<cell>/ */ @@ -426,25 +411,25 @@ int afs_proc_cell_setup(struct afs_cell *cell) cell->proc_dir = proc_mkdir(cell->name, proc_afs); if (!cell->proc_dir) - return -ENOMEM; + goto error_dir; p = create_proc_entry("servers", 0, cell->proc_dir); if (!p) - goto error_proc; + goto error_servers; p->proc_fops = &afs_proc_cell_servers_fops; p->owner = THIS_MODULE; p->data = cell; p = create_proc_entry("vlservers", 0, cell->proc_dir); if (!p) - goto error_servers; + goto error_vlservers; p->proc_fops = &afs_proc_cell_vlservers_fops; p->owner = THIS_MODULE; p->data = cell; p = create_proc_entry("volumes", 0, cell->proc_dir); if (!p) - goto error_vlservers; + goto error_volumes; p->proc_fops = &afs_proc_cell_volumes_fops; p->owner = THIS_MODULE; p->data = cell; @@ -452,17 +437,17 @@ int afs_proc_cell_setup(struct afs_cell *cell) _leave(" = 0"); return 0; - error_vlservers: +error_volumes: remove_proc_entry("vlservers", cell->proc_dir); - error_servers: +error_vlservers: remove_proc_entry("servers", cell->proc_dir); - error_proc: +error_servers: remove_proc_entry(cell->name, proc_afs); +error_dir: _leave(" = -ENOMEM"); return -ENOMEM; -} /* end afs_proc_cell_setup() */ +} -/*****************************************************************************/ /* * remove /proc/fs/afs/<cell>/ */ @@ -476,9 +461,8 @@ void afs_proc_cell_remove(struct afs_cell *cell) remove_proc_entry(cell->name, proc_afs); _leave(""); -} /* end afs_proc_cell_remove() */ +} -/*****************************************************************************/ /* * open "/proc/fs/afs/<cell>/volumes" which provides a summary of extant cells */ @@ -500,9 +484,8 @@ static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file) m->private = cell; return 0; -} /* end afs_proc_cell_volumes_open() */ +} -/*****************************************************************************/ /* * close the file and release the ref to the cell */ @@ -511,14 +494,12 @@ static int afs_proc_cell_volumes_release(struct inode *inode, struct file *file) struct afs_cell *cell = PDE(inode)->data; int ret; - ret = seq_release(inode,file); + ret = seq_release(inode, file); afs_put_cell(cell); - return ret; -} /* end afs_proc_cell_volumes_release() */ +} -/*****************************************************************************/ /* * set up the iterator to start reading from the cells list and return the * first item @@ -545,9 +526,8 @@ static void *afs_proc_cell_volumes_start(struct seq_file *m, loff_t *_pos) break; return _p != &cell->vl_list ? _p : NULL; -} /* end afs_proc_cell_volumes_start() */ +} -/*****************************************************************************/ /* * move to next cell in cells list */ @@ -562,12 +542,11 @@ static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v, (*_pos)++; _p = v; - _p = v == (void *) 1 ? cell->vl_list.next : _p->next; + _p = (v == (void *) 1) ? cell->vl_list.next : _p->next; - return _p != &cell->vl_list ? _p : NULL; -} /* end afs_proc_cell_volumes_next() */ + return (_p != &cell->vl_list) ? _p : NULL; +} -/*****************************************************************************/ /* * clean up after reading from the cells list */ @@ -576,10 +555,8 @@ static void afs_proc_cell_volumes_stop(struct seq_file *p, void *v) struct afs_cell *cell = p->private; up_read(&cell->vl_sem); +} -} /* end afs_proc_cell_volumes_stop() */ - -/*****************************************************************************/ /* * display a header line followed by a load of volume lines */ @@ -600,13 +577,11 @@ static int afs_proc_cell_volumes_show(struct seq_file *m, void *v) vlocation->vldb.vid[0], vlocation->vldb.vid[1], vlocation->vldb.vid[2], - vlocation->vldb.name - ); + vlocation->vldb.name); return 0; -} /* end afs_proc_cell_volumes_show() */ +} -/*****************************************************************************/ /* * open "/proc/fs/afs/<cell>/vlservers" which provides a list of volume * location server @@ -629,9 +604,8 @@ static int afs_proc_cell_vlservers_open(struct inode *inode, struct file *file) m->private = cell; return 0; -} /* end afs_proc_cell_vlservers_open() */ +} -/*****************************************************************************/ /* * close the file and release the ref to the cell */ @@ -644,11 +618,9 @@ static int afs_proc_cell_vlservers_release(struct inode *inode, ret = seq_release(inode,file); afs_put_cell(cell); - return ret; -} /* end afs_proc_cell_vlservers_release() */ +} -/*****************************************************************************/ /* * set up the iterator to start reading from the cells list and return the * first item @@ -672,9 +644,8 @@ static void *afs_proc_cell_vlservers_start(struct seq_file *m, loff_t *_pos) return NULL; return &cell->vl_addrs[pos]; -} /* end afs_proc_cell_vlservers_start() */ +} -/*****************************************************************************/ /* * move to next cell in cells list */ @@ -692,9 +663,8 @@ static void *afs_proc_cell_vlservers_next(struct seq_file *p, void *v, return NULL; return &cell->vl_addrs[pos]; -} /* end afs_proc_cell_vlservers_next() */ +} -/*****************************************************************************/ /* * clean up after reading from the cells list */ @@ -703,10 +673,8 @@ static void afs_proc_cell_vlservers_stop(struct seq_file *p, void *v) struct afs_cell *cell = p->private; up_read(&cell->vl_sem); +} -} /* end afs_proc_cell_vlservers_stop() */ - -/*****************************************************************************/ /* * display a header line followed by a load of volume lines */ @@ -722,11 +690,9 @@ static int afs_proc_cell_vlservers_show(struct seq_file *m, void *v) /* display one cell per line on subsequent lines */ seq_printf(m, "%u.%u.%u.%u\n", NIPQUAD(addr->s_addr)); - return 0; -} /* end afs_proc_cell_vlservers_show() */ +} -/*****************************************************************************/ /* * open "/proc/fs/afs/<cell>/servers" which provides a summary of active * servers @@ -747,11 +713,9 @@ static int afs_proc_cell_servers_open(struct inode *inode, struct file *file) m = file->private_data; m->private = cell; - return 0; -} /* end afs_proc_cell_servers_open() */ +} -/*****************************************************************************/ /* * close the file and release the ref to the cell */ @@ -764,11 +728,9 @@ static int afs_proc_cell_servers_release(struct inode *inode, ret = seq_release(inode, file); afs_put_cell(cell); - return ret; -} /* end afs_proc_cell_servers_release() */ +} -/*****************************************************************************/ /* * set up the iterator to start reading from the cells list and return the * first item @@ -796,9 +758,8 @@ static void *afs_proc_cell_servers_start(struct seq_file *m, loff_t *_pos) break; return _p != &cell->sv_list ? _p : NULL; -} /* end afs_proc_cell_servers_start() */ +} -/*****************************************************************************/ /* * move to next cell in cells list */ @@ -816,9 +777,8 @@ static void *afs_proc_cell_servers_next(struct seq_file *p, void *v, _p = v == (void *) 1 ? cell->sv_list.next : _p->next; return _p != &cell->sv_list ? _p : NULL; -} /* end afs_proc_cell_servers_next() */ +} -/*****************************************************************************/ /* * clean up after reading from the cells list */ @@ -828,10 +788,8 @@ static void afs_proc_cell_servers_stop(struct seq_file *p, void *v) struct afs_cell *cell = p->private; read_unlock(&cell->sv_lock); +} -} /* end afs_proc_cell_servers_stop() */ - -/*****************************************************************************/ /* * display a header line followed by a load of volume lines */ @@ -849,10 +807,7 @@ static int afs_proc_cell_servers_show(struct seq_file *m, void *v) /* display one cell per line on subsequent lines */ sprintf(ipaddr, "%u.%u.%u.%u", NIPQUAD(server->addr)); seq_printf(m, "%3d %-15.15s %5d\n", - atomic_read(&server->usage), - ipaddr, - server->fs_state - ); + atomic_read(&server->usage), ipaddr, server->fs_state); return 0; -} /* end afs_proc_cell_servers_show() */ +} |