.capabilities = BDI_CAP_NO_ACCT_DIRTY | BDI_CAP_NO_WRITEBACK,
};
-static struct inode *relayfs_get_inode(struct super_block *sb, int mode,
+static struct inode *relayfs_get_inode(struct super_block *sb,
+ int mode,
+ struct file_operations *fops,
void *data)
{
struct inode *inode;
inode->i_atime = inode->i_mtime = inode->i_ctime = CURRENT_TIME;
switch (mode & S_IFMT) {
case S_IFREG:
- inode->i_fop = &relayfs_file_operations;
- RELAYFS_I(inode)->buf = data;
+ inode->i_fop = fops;
+ RELAYFS_I(inode)->data = data;
break;
case S_IFDIR:
inode->i_op = &simple_dir_inode_operations;
* @name: the name of the file to create
* @parent: parent directory
* @mode: mode
+ * @fops: file operations to use for the file
* @data: user-associated data for this file
*
* Returns the new dentry, NULL on failure
static struct dentry *relayfs_create_entry(const char *name,
struct dentry *parent,
int mode,
+ struct file_operations *fops,
void *data)
{
struct dentry *d;
goto release_mount;
}
- inode = relayfs_get_inode(parent->d_inode->i_sb, mode, data);
+ inode = relayfs_get_inode(parent->d_inode->i_sb, mode, fops, data);
if (!inode) {
d = NULL;
goto release_mount;
* @name: the name of the file to create
* @parent: parent directory
* @mode: mode, if not specied the default perms are used
+ * @fops: file operations to use for the file
* @data: user-associated data for this file
*
* Returns file dentry if successful, NULL otherwise.
*
* The file will be created user r on behalf of current user.
*/
-struct dentry *relayfs_create_file(const char *name, struct dentry *parent,
- int mode, void *data)
+struct dentry *relayfs_create_file(const char *name,
+ struct dentry *parent,
+ int mode,
+ struct file_operations *fops,
+ void *data)
{
+ BUG_ON(!fops);
+
if (!mode)
mode = S_IRUSR;
mode = (mode & S_IALLUGO) | S_IFREG;
- return relayfs_create_entry(name, parent, mode, data);
+ return relayfs_create_entry(name, parent, mode, fops, data);
}
/**
struct dentry *relayfs_create_dir(const char *name, struct dentry *parent)
{
int mode = S_IFDIR | S_IRWXU | S_IRUGO | S_IXUGO;
- return relayfs_create_entry(name, parent, mode, NULL);
+ return relayfs_create_entry(name, parent, mode, NULL, NULL);
}
/**
return error;
}
+/**
+ * relayfs_remove_file - remove a file from relay filesystem
+ * @dentry: directory dentry
+ *
+ * Returns 0 if successful, negative otherwise.
+ */
+int relayfs_remove_file(struct dentry *dentry)
+{
+ return relayfs_remove(dentry);
+}
+
/**
* relayfs_remove_dir - remove a directory in the relay filesystem
* @dentry: directory dentry
*/
static int relayfs_open(struct inode *inode, struct file *filp)
{
- struct rchan_buf *buf = RELAYFS_I(inode)->buf;
+ struct rchan_buf *buf = RELAYFS_I(inode)->data;
kref_get(&buf->kref);
return 0;
static int relayfs_mmap(struct file *filp, struct vm_area_struct *vma)
{
struct inode *inode = filp->f_dentry->d_inode;
- return relay_mmap_buf(RELAYFS_I(inode)->buf, vma);
+ return relay_mmap_buf(RELAYFS_I(inode)->data, vma);
}
/**
{
unsigned int mask = 0;
struct inode *inode = filp->f_dentry->d_inode;
- struct rchan_buf *buf = RELAYFS_I(inode)->buf;
+ struct rchan_buf *buf = RELAYFS_I(inode)->data;
if (buf->finalized)
return POLLERR;
*/
static int relayfs_release(struct inode *inode, struct file *filp)
{
- struct rchan_buf *buf = RELAYFS_I(inode)->buf;
+ struct rchan_buf *buf = RELAYFS_I(inode)->data;
kref_put(&buf->kref, relay_remove_buf);
return 0;
loff_t *ppos)
{
struct inode *inode = filp->f_dentry->d_inode;
- struct rchan_buf *buf = RELAYFS_I(inode)->buf;
+ struct rchan_buf *buf = RELAYFS_I(inode)->data;
size_t read_start, avail;
ssize_t ret = 0;
void *from;
struct relayfs_inode_info *p = kmem_cache_alloc(relayfs_inode_cachep, SLAB_KERNEL);
if (!p)
return NULL;
- p->buf = NULL;
+ p->data = NULL;
return &p->vfs_inode;
}
sb->s_blocksize_bits = PAGE_CACHE_SHIFT;
sb->s_magic = RELAYFS_MAGIC;
sb->s_op = &relayfs_ops;
- inode = relayfs_get_inode(sb, mode, NULL);
+ inode = relayfs_get_inode(sb, mode, NULL, NULL);
if (!inode)
return -ENOMEM;
EXPORT_SYMBOL_GPL(relayfs_file_operations);
EXPORT_SYMBOL_GPL(relayfs_create_dir);
EXPORT_SYMBOL_GPL(relayfs_remove_dir);
+EXPORT_SYMBOL_GPL(relayfs_create_file);
+EXPORT_SYMBOL_GPL(relayfs_remove_file);
MODULE_AUTHOR("Tom Zanussi <zanussi@us.ibm.com> and Karim Yaghmour <karim@opersys.com>");
MODULE_DESCRIPTION("Relay Filesystem");