renegade-project/linux-next
2
0
Fork 0
mirror of https://github.com/edk2-porting/linux-next.git synced 2024-11-18 07:35:12 +08:00
Code

afs: get rid of junk in fs/afs/proc.c

Browse Source 
kill pointless method instances and don't bother with ->owner - it's
ignored for procfs files anyway, make use of remove_proc_subtree() for
removal, get rid of cell->proc_dir.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2013-11-22 01:53:47 -05:00
parent 479e64c210
commit b42d570c9f
2 changed files with 22 additions and 101 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
fs/afs/internal.h
View File

@ -195,7 +195,6 @@ struct afs_cell {
struct list_head link; /* main cell list link */
struct key *anonymous_key; /* anonymous user key for this cell */
struct list_head proc_link; /* /proc cell list link */
struct proc_dir_entry *proc_dir; /* /proc dir for this cell */
#ifdef CONFIG_AFS_FSCACHE
struct fscache_cookie *cache; /* caching cookie */
#endif

122
fs/afs/proc.c
View File

@ -41,11 +41,8 @@ static const struct file_operations afs_proc_cells_fops = {
.write = afs_proc_cells_write,
.llseek = seq_lseek,
.release = seq_release,
.owner = THIS_MODULE,
};
static int afs_proc_rootcell_open(struct inode *inode, struct file *file);
static int afs_proc_rootcell_release(struct inode *inode, struct file *file);
static ssize_t afs_proc_rootcell_read(struct file *file, char __user *buf,
size_t size, loff_t *_pos);
static ssize_t afs_proc_rootcell_write(struct file *file,
@ -53,17 +50,12 @@ static ssize_t afs_proc_rootcell_write(struct file *file,
size_t size, loff_t *_pos);
static const struct file_operations afs_proc_rootcell_fops = {
.open = afs_proc_rootcell_open,
.read = afs_proc_rootcell_read,
.write = afs_proc_rootcell_write,
.llseek = no_llseek,
.release = afs_proc_rootcell_release,
.owner = THIS_MODULE,
};
static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file);
static int afs_proc_cell_volumes_release(struct inode *inode,
struct file *file);
static void *afs_proc_cell_volumes_start(struct seq_file *p, loff_t *pos);
static void *afs_proc_cell_volumes_next(struct seq_file *p, void *v,
loff_t *pos);
@ -81,14 +73,11 @@ static const struct file_operations afs_proc_cell_volumes_fops = {
.open = afs_proc_cell_volumes_open,
.read = seq_read,
.llseek = seq_lseek,
.release = afs_proc_cell_volumes_release,
.owner = THIS_MODULE,
.release = seq_release,
};
static int afs_proc_cell_vlservers_open(struct inode *inode,
struct file *file);
static int afs_proc_cell_vlservers_release(struct inode *inode,
struct file *file);
static void *afs_proc_cell_vlservers_start(struct seq_file *p, loff_t *pos);
static void *afs_proc_cell_vlservers_next(struct seq_file *p, void *v,
loff_t *pos);
@ -106,13 +95,10 @@ static const struct file_operations afs_proc_cell_vlservers_fops = {
.open = afs_proc_cell_vlservers_open,
.read = seq_read,
.llseek = seq_lseek,
.release = afs_proc_cell_vlservers_release,
.owner = THIS_MODULE,
.release = seq_release,
};
static int afs_proc_cell_servers_open(struct inode *inode, struct file *file);
static int afs_proc_cell_servers_release(struct inode *inode,
struct file *file);
static void *afs_proc_cell_servers_start(struct seq_file *p, loff_t *pos);
static void *afs_proc_cell_servers_next(struct seq_file *p, void *v,
loff_t *pos);
@ -130,8 +116,7 @@ static const struct file_operations afs_proc_cell_servers_fops = {
.open = afs_proc_cell_servers_open,
.read = seq_read,
.llseek = seq_lseek,
.release = afs_proc_cell_servers_release,
.owner = THIS_MODULE,
.release = seq_release,
};
/*
@ -139,29 +124,21 @@ static const struct file_operations afs_proc_cell_servers_fops = {
*/
int afs_proc_init(void)
{
struct proc_dir_entry *p;
_enter("");
proc_afs = proc_mkdir("fs/afs", NULL);
if (!proc_afs)
goto error_dir;
p = proc_create("cells", 0, proc_afs, &afs_proc_cells_fops);
if (!p)
goto error_cells;
p = proc_create("rootcell", 0, proc_afs, &afs_proc_rootcell_fops);
if (!p)
goto error_rootcell;
if (!proc_create("cells", 0, proc_afs, &afs_proc_cells_fops) ||
!proc_create("rootcell", 0, proc_afs, &afs_proc_rootcell_fops))
goto error_tree;
_leave(" = 0");
return 0;
error_rootcell:
remove_proc_entry("cells", proc_afs);
error_cells:
remove_proc_entry("fs/afs", NULL);
error_tree:
remove_proc_subtree("fs/afs", NULL);
error_dir:
_leave(" = -ENOMEM");
return -ENOMEM;
@ -172,9 +149,7 @@ error_dir:
*/
void afs_proc_cleanup(void)
{
remove_proc_entry("rootcell", proc_afs);
remove_proc_entry("cells", proc_afs);
remove_proc_entry("fs/afs", NULL);
remove_proc_subtree("fs/afs", NULL);
}
/*
@ -319,19 +294,6 @@ inval:
goto done;
}
/*
* Stubs for /proc/fs/afs/rootcell
*/
static int afs_proc_rootcell_open(struct inode *inode, struct file *file)
{
return 0;
}
static int afs_proc_rootcell_release(struct inode *inode, struct file *file)
{
return 0;
}
static ssize_t afs_proc_rootcell_read(struct file *file, char __user *buf,
size_t size, loff_t *_pos)
{
@ -387,38 +349,27 @@ nomem:
*/
int afs_proc_cell_setup(struct afs_cell *cell)
{
struct proc_dir_entry *p;
struct proc_dir_entry *dir;
_enter("%p{%s}", cell, cell->name);
cell->proc_dir = proc_mkdir(cell->name, proc_afs);
if (!cell->proc_dir)
dir = proc_mkdir(cell->name, proc_afs);
if (!dir)
goto error_dir;
p = proc_create_data("servers", 0, cell->proc_dir,
&afs_proc_cell_servers_fops, cell);
if (!p)
goto error_servers;
p = proc_create_data("vlservers", 0, cell->proc_dir,
&afs_proc_cell_vlservers_fops, cell);
if (!p)
goto error_vlservers;
p = proc_create_data("volumes", 0, cell->proc_dir,
&afs_proc_cell_volumes_fops, cell);
if (!p)
goto error_volumes;
if (!proc_create_data("servers", 0, dir,
&afs_proc_cell_servers_fops, cell) ||
!proc_create_data("vlservers", 0, dir,
&afs_proc_cell_vlservers_fops, cell) ||
!proc_create_data("volumes", 0, dir,
&afs_proc_cell_volumes_fops, cell))
goto error_tree;
_leave(" = 0");
return 0;
error_volumes:
remove_proc_entry("vlservers", cell->proc_dir);
error_vlservers:
remove_proc_entry("servers", cell->proc_dir);
error_servers:
remove_proc_entry(cell->name, proc_afs);
error_tree:
remove_proc_subtree(cell->name, proc_afs);
error_dir:
_leave(" = -ENOMEM");
return -ENOMEM;
@ -431,10 +382,7 @@ void afs_proc_cell_remove(struct afs_cell *cell)
{
_enter("");
remove_proc_entry("volumes", cell->proc_dir);
remove_proc_entry("vlservers", cell->proc_dir);
remove_proc_entry("servers", cell->proc_dir);
remove_proc_entry(cell->name, proc_afs);
remove_proc_subtree(cell->name, proc_afs);
_leave("");
}
@ -462,14 +410,6 @@ static int afs_proc_cell_volumes_open(struct inode *inode, struct file *file)
return 0;
}
/*
* close the file and release the ref to the cell
*/
static int afs_proc_cell_volumes_release(struct inode *inode, struct file *file)
{
return seq_release(inode, file);
}
/*
* set up the iterator to start reading from the cells list and return the
* first item
@ -568,15 +508,6 @@ static int afs_proc_cell_vlservers_open(struct inode *inode, struct file *file)
return 0;
}
/*
* close the file and release the ref to the cell
*/
static int afs_proc_cell_vlservers_release(struct inode *inode,
struct file *file)
{
return seq_release(inode, file);
}
/*
* set up the iterator to start reading from the cells list and return the
* first item
@ -672,15 +603,6 @@ static int afs_proc_cell_servers_open(struct inode *inode, struct file *file)
return 0;
}
/*
* close the file and release the ref to the cell
*/
static int afs_proc_cell_servers_release(struct inode *inode,
struct file *file)
{
return seq_release(inode, file);
}
/*
* set up the iterator to start reading from the cells list and return the
* first item