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* Introduced new call get_next_removed_vnode() to be able to iterate over

Browse Source 
removed but not yet deleted vnodes.
* Simplified get_vnode_removed().
* Header cleanup.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@30176 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2009-04-15 16:14:04 +00:00
parent 5193237f1f
commit 4e98292b8e
2 changed files with 254 additions and 203 deletions
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376
headers/os/drivers/fs_interface.h
View File

@ -1,5 +1,5 @@
/*
* Copyright 2004-2008, Haiku Inc. All Rights Reserved.
* Copyright 2004-2009, Haiku Inc. All Rights Reserved.
* Distributed under the terms of the MIT License.
*/
#ifndef _FS_INTERFACE_H
@ -73,173 +73,173 @@ struct fs_vnode {
};
struct fs_volume_ops {
status_t (*unmount)(fs_volume *volume);
status_t (*unmount)(fs_volume* volume);
status_t (*read_fs_info)(fs_volume *volume, struct fs_info *info);
status_t (*write_fs_info)(fs_volume *volume, const struct fs_info *info,
status_t (*read_fs_info)(fs_volume* volume, struct fs_info* info);
status_t (*write_fs_info)(fs_volume* volume, const struct fs_info* info,
uint32 mask);
status_t (*sync)(fs_volume *volume);
status_t (*sync)(fs_volume* volume);
status_t (*get_vnode)(fs_volume *volume, ino_t id, fs_vnode *vnode,
int *_type, uint32 *_flags, bool reenter);
status_t (*get_vnode)(fs_volume* volume, ino_t id, fs_vnode* vnode,
int* _type, uint32* _flags, bool reenter);
/* index directory & index operations */
status_t (*open_index_dir)(fs_volume *volume, void **cookie);
status_t (*close_index_dir)(fs_volume *volume, void *cookie);
status_t (*free_index_dir_cookie)(fs_volume *volume, void *cookie);
status_t (*read_index_dir)(fs_volume *volume, void *cookie,
struct dirent *buffer, size_t bufferSize, uint32 *_num);
status_t (*rewind_index_dir)(fs_volume *volume, void *cookie);
status_t (*open_index_dir)(fs_volume* volume, void** _cookie);
status_t (*close_index_dir)(fs_volume* volume, void* cookie);
status_t (*free_index_dir_cookie)(fs_volume* volume, void* cookie);
status_t (*read_index_dir)(fs_volume* volume, void* cookie,
struct dirent* buffer, size_t bufferSize, uint32* _num);
status_t (*rewind_index_dir)(fs_volume* volume, void* cookie);
status_t (*create_index)(fs_volume *volume, const char *name, uint32 type,
status_t (*create_index)(fs_volume* volume, const char* name, uint32 type,
uint32 flags);
status_t (*remove_index)(fs_volume *volume, const char *name);
status_t (*read_index_stat)(fs_volume *volume, const char *name,
struct stat *stat);
status_t (*remove_index)(fs_volume* volume, const char* name);
status_t (*read_index_stat)(fs_volume* volume, const char* name,
struct stat* stat);
/* query operations */
status_t (*open_query)(fs_volume *volume, const char *query, uint32 flags,
port_id port, uint32 token, void **_cookie);
status_t (*close_query)(fs_volume *volume, void *cookie);
status_t (*free_query_cookie)(fs_volume *volume, void *cookie);
status_t (*read_query)(fs_volume *volume, void *cookie,
struct dirent *buffer, size_t bufferSize, uint32 *_num);
status_t (*rewind_query)(fs_volume *volume, void *cookie);
status_t (*open_query)(fs_volume* volume, const char* query, uint32 flags,
port_id port, uint32 token, void** _cookie);
status_t (*close_query)(fs_volume* volume, void* cookie);
status_t (*free_query_cookie)(fs_volume* volume, void* cookie);
status_t (*read_query)(fs_volume* volume, void* cookie,
struct dirent* buffer, size_t bufferSize, uint32* _num);
status_t (*rewind_query)(fs_volume* volume, void* cookie);
/* support for FS layers */
status_t (*all_layers_mounted)(fs_volume *volume);
status_t (*create_sub_vnode)(fs_volume *volume, ino_t id, fs_vnode *vnode);
status_t (*delete_sub_vnode)(fs_volume *volume, fs_vnode *vnode);
status_t (*all_layers_mounted)(fs_volume* volume);
status_t (*create_sub_vnode)(fs_volume* volume, ino_t id, fs_vnode* vnode);
status_t (*delete_sub_vnode)(fs_volume* volume, fs_vnode* vnode);
};
struct fs_vnode_ops {
/* vnode operations */
status_t (*lookup)(fs_volume *volume, fs_vnode *dir, const char *name,
ino_t *_id);
status_t (*get_vnode_name)(fs_volume *volume, fs_vnode *vnode, char *buffer,
status_t (*lookup)(fs_volume* volume, fs_vnode* dir, const char* name,
ino_t* _id);
status_t (*get_vnode_name)(fs_volume* volume, fs_vnode* vnode, char* buffer,
size_t bufferSize);
status_t (*put_vnode)(fs_volume *volume, fs_vnode *vnode, bool reenter);
status_t (*remove_vnode)(fs_volume *volume, fs_vnode *vnode, bool reenter);
status_t (*put_vnode)(fs_volume* volume, fs_vnode* vnode, bool reenter);
status_t (*remove_vnode)(fs_volume* volume, fs_vnode* vnode, bool reenter);
/* VM file access */
bool (*can_page)(fs_volume *volume, fs_vnode *vnode, void *cookie);
status_t (*read_pages)(fs_volume *volume, fs_vnode *vnode, void *cookie,
off_t pos, const iovec *vecs, size_t count, size_t *_numBytes);
status_t (*write_pages)(fs_volume *volume, fs_vnode *vnode,
void *cookie, off_t pos, const iovec *vecs, size_t count,
size_t *_numBytes);
bool (*can_page)(fs_volume* volume, fs_vnode* vnode, void* cookie);
status_t (*read_pages)(fs_volume* volume, fs_vnode* vnode, void* cookie,
off_t pos, const iovec* vecs, size_t count, size_t* _numBytes);
status_t (*write_pages)(fs_volume* volume, fs_vnode* vnode,
void* cookie, off_t pos, const iovec* vecs, size_t count,
size_t* _numBytes);
/* asynchronous I/O */
status_t (*io)(fs_volume *volume, fs_vnode *vnode, void *cookie,
io_request *request);
status_t (*cancel_io)(fs_volume *volume, fs_vnode *vnode, void *cookie,
io_request *request);
status_t (*io)(fs_volume* volume, fs_vnode* vnode, void* cookie,
io_request* request);
status_t (*cancel_io)(fs_volume* volume, fs_vnode* vnode, void* cookie,
io_request* request);
/* cache file access */
status_t (*get_file_map)(fs_volume *volume, fs_vnode *vnode, off_t offset,
size_t size, struct file_io_vec *vecs, size_t *_count);
status_t (*get_file_map)(fs_volume* volume, fs_vnode* vnode, off_t offset,
size_t size, struct file_io_vec* vecs, size_t* _count);
/* common operations */
status_t (*ioctl)(fs_volume *volume, fs_vnode *vnode, void *cookie,
ulong op, void *buffer, size_t length);
status_t (*set_flags)(fs_volume *volume, fs_vnode *vnode, void *cookie,
status_t (*ioctl)(fs_volume* volume, fs_vnode* vnode, void* cookie,
ulong op, void* buffer, size_t length);
status_t (*set_flags)(fs_volume* volume, fs_vnode* vnode, void* cookie,
int flags);
status_t (*select)(fs_volume *volume, fs_vnode *vnode, void *cookie,
uint8 event, selectsync *sync);
status_t (*deselect)(fs_volume *volume, fs_vnode *vnode, void *cookie,
uint8 event, selectsync *sync);
status_t (*fsync)(fs_volume *volume, fs_vnode *vnode);
status_t (*select)(fs_volume* volume, fs_vnode* vnode, void* cookie,
uint8 event, selectsync* sync);
status_t (*deselect)(fs_volume* volume, fs_vnode* vnode, void* cookie,
uint8 event, selectsync* sync);
status_t (*fsync)(fs_volume* volume, fs_vnode* vnode);
status_t (*read_symlink)(fs_volume *volume, fs_vnode *link, char *buffer,
size_t *_bufferSize);
status_t (*create_symlink)(fs_volume *volume, fs_vnode *dir,
const char *name, const char *path, int mode);
status_t (*read_symlink)(fs_volume* volume, fs_vnode* link, char* buffer,
size_t* _bufferSize);
status_t (*create_symlink)(fs_volume* volume, fs_vnode* dir,
const char* name, const char* path, int mode);
status_t (*link)(fs_volume *volume, fs_vnode *dir, const char *name,
fs_vnode *vnode);
status_t (*unlink)(fs_volume *volume, fs_vnode *dir, const char *name);
status_t (*rename)(fs_volume *volume, fs_vnode *fromDir,
const char *fromName, fs_vnode *toDir, const char *toName);
status_t (*link)(fs_volume* volume, fs_vnode* dir, const char* name,
fs_vnode* vnode);
status_t (*unlink)(fs_volume* volume, fs_vnode* dir, const char* name);
status_t (*rename)(fs_volume* volume, fs_vnode* fromDir,
const char* fromName, fs_vnode* toDir, const char* toName);
status_t (*access)(fs_volume *volume, fs_vnode *vnode, int mode);
status_t (*read_stat)(fs_volume *volume, fs_vnode *vnode,
struct stat *stat);
status_t (*write_stat)(fs_volume *volume, fs_vnode *vnode,
const struct stat *stat, uint32 statMask);
status_t (*access)(fs_volume* volume, fs_vnode* vnode, int mode);
status_t (*read_stat)(fs_volume* volume, fs_vnode* vnode,
struct stat* stat);
status_t (*write_stat)(fs_volume* volume, fs_vnode* vnode,
const struct stat* stat, uint32 statMask);
/* file operations */
status_t (*create)(fs_volume *volume, fs_vnode *dir, const char *name,
int openMode, int perms, void **_cookie,
ino_t *_newVnodeID);
status_t (*open)(fs_volume *volume, fs_vnode *vnode, int openMode,
void **_cookie);
status_t (*close)(fs_volume *volume, fs_vnode *vnode, void *cookie);
status_t (*free_cookie)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*read)(fs_volume *volume, fs_vnode *vnode, void *cookie,
off_t pos, void *buffer, size_t *length);
status_t (*write)(fs_volume *volume, fs_vnode *vnode, void *cookie,
off_t pos, const void *buffer, size_t *length);
status_t (*create)(fs_volume* volume, fs_vnode* dir, const char* name,
int openMode, int perms, void** _cookie,
ino_t* _newVnodeID);
status_t (*open)(fs_volume* volume, fs_vnode* vnode, int openMode,
void** _cookie);
status_t (*close)(fs_volume* volume, fs_vnode* vnode, void* cookie);
status_t (*free_cookie)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
status_t (*read)(fs_volume* volume, fs_vnode* vnode, void* cookie,
off_t pos, void* buffer, size_t* length);
status_t (*write)(fs_volume* volume, fs_vnode* vnode, void* cookie,
off_t pos, const void* buffer, size_t* length);
/* directory operations */
status_t (*create_dir)(fs_volume *volume, fs_vnode *parent,
const char *name, int perms);
status_t (*remove_dir)(fs_volume *volume, fs_vnode *parent,
const char *name);
status_t (*open_dir)(fs_volume *volume, fs_vnode *vnode,
void **_cookie);
status_t (*close_dir)(fs_volume *volume, fs_vnode *vnode, void *cookie);
status_t (*free_dir_cookie)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*read_dir)(fs_volume *volume, fs_vnode *vnode, void *cookie,
struct dirent *buffer, size_t bufferSize, uint32 *_num);
status_t (*rewind_dir)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*create_dir)(fs_volume* volume, fs_vnode* parent,
const char* name, int perms);
status_t (*remove_dir)(fs_volume* volume, fs_vnode* parent,
const char* name);
status_t (*open_dir)(fs_volume* volume, fs_vnode* vnode,
void** _cookie);
status_t (*close_dir)(fs_volume* volume, fs_vnode* vnode, void* cookie);
status_t (*free_dir_cookie)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
status_t (*read_dir)(fs_volume* volume, fs_vnode* vnode, void* cookie,
struct dirent* buffer, size_t bufferSize, uint32* _num);
status_t (*rewind_dir)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
/* attribute directory operations */
status_t (*open_attr_dir)(fs_volume *volume, fs_vnode *vnode,
void **_cookie);
status_t (*close_attr_dir)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*free_attr_dir_cookie)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*read_attr_dir)(fs_volume *volume, fs_vnode *vnode,
void *cookie, struct dirent *buffer, size_t bufferSize,
uint32 *_num);
status_t (*rewind_attr_dir)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*open_attr_dir)(fs_volume* volume, fs_vnode* vnode,
void** _cookie);
status_t (*close_attr_dir)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
status_t (*free_attr_dir_cookie)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
status_t (*read_attr_dir)(fs_volume* volume, fs_vnode* vnode,
void* cookie, struct dirent* buffer, size_t bufferSize,
uint32* _num);
status_t (*rewind_attr_dir)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
/* attribute operations */
status_t (*create_attr)(fs_volume *volume, fs_vnode *vnode,
const char *name, uint32 type, int openMode,
void **_cookie);
status_t (*open_attr)(fs_volume *volume, fs_vnode *vnode, const char *name,
int openMode, void **_cookie);
status_t (*close_attr)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*free_attr_cookie)(fs_volume *volume, fs_vnode *vnode,
void *cookie);
status_t (*read_attr)(fs_volume *volume, fs_vnode *vnode, void *cookie,
off_t pos, void *buffer, size_t *length);
status_t (*write_attr)(fs_volume *volume, fs_vnode *vnode, void *cookie,
off_t pos, const void *buffer, size_t *length);
status_t (*create_attr)(fs_volume* volume, fs_vnode* vnode,
const char* name, uint32 type, int openMode,
void** _cookie);
status_t (*open_attr)(fs_volume* volume, fs_vnode* vnode, const char* name,
int openMode, void** _cookie);
status_t (*close_attr)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
status_t (*free_attr_cookie)(fs_volume* volume, fs_vnode* vnode,
void* cookie);
status_t (*read_attr)(fs_volume* volume, fs_vnode* vnode, void* cookie,
off_t pos, void* buffer, size_t* length);
status_t (*write_attr)(fs_volume* volume, fs_vnode* vnode, void* cookie,
off_t pos, const void* buffer, size_t* length);
status_t (*read_attr_stat)(fs_volume *volume, fs_vnode *vnode,
void *cookie, struct stat *stat);
status_t (*write_attr_stat)(fs_volume *volume, fs_vnode *vnode,
void *cookie, const struct stat *stat, int statMask);
status_t (*rename_attr)(fs_volume *volume, fs_vnode *fromVnode,
const char *fromName, fs_vnode *toVnode, const char *toName);
status_t (*remove_attr)(fs_volume *volume, fs_vnode *vnode,
const char *name);
status_t (*read_attr_stat)(fs_volume* volume, fs_vnode* vnode,
void* cookie, struct stat* stat);
status_t (*write_attr_stat)(fs_volume* volume, fs_vnode* vnode,
void* cookie, const struct stat* stat, int statMask);
status_t (*rename_attr)(fs_volume* volume, fs_vnode* fromVnode,
const char* fromName, fs_vnode* toVnode, const char* toName);
status_t (*remove_attr)(fs_volume* volume, fs_vnode* vnode,
const char* name);
/* support for node and FS layers */
status_t (*create_special_node)(fs_volume *volume, fs_vnode *dir,
const char *name, fs_vnode *subVnode, mode_t mode, uint32 flags,
fs_vnode *_superVnode, ino_t *_nodeID);
status_t (*get_super_vnode)(fs_volume *volume, fs_vnode *vnode,
fs_volume *superVolume, fs_vnode *superVnode);
status_t (*create_special_node)(fs_volume* volume, fs_vnode* dir,
const char* name, fs_vnode* subVnode, mode_t mode, uint32 flags,
fs_vnode* _superVnode, ino_t* _nodeID);
status_t (*get_super_vnode)(fs_volume* volume, fs_vnode* vnode,
fs_volume* superVolume, fs_vnode* superVnode);
};
struct file_system_module_info {
@ -249,33 +249,33 @@ struct file_system_module_info {
uint32 flags; // DDM flags
/* scanning (the device is write locked) */
float (*identify_partition)(int fd, partition_data *partition,
void **cookie);
status_t (*scan_partition)(int fd, partition_data *partition,
void *cookie);
void (*free_identify_partition_cookie)(partition_data *partition,
void *cookie);
void (*free_partition_content_cookie)(partition_data *partition);
float (*identify_partition)(int fd, partition_data* partition,
void** _cookie);
status_t (*scan_partition)(int fd, partition_data* partition,
void* cookie);
void (*free_identify_partition_cookie)(partition_data* partition,
void* cookie);
void (*free_partition_content_cookie)(partition_data* partition);
/* general operations */
status_t (*mount)(fs_volume *volume, const char *device, uint32 flags,
const char *args, ino_t *_rootVnodeID);
status_t (*mount)(fs_volume* volume, const char* device, uint32 flags,
const char* args, ino_t* _rootVnodeID);
/* capability querying (the device is read locked) */
uint32 (*get_supported_operations)(partition_data* partition, uint32 mask);
bool (*validate_resize)(partition_data *partition, off_t *size);
bool (*validate_move)(partition_data *partition, off_t *start);
bool (*validate_set_content_name)(partition_data *partition,
char *name);
bool (*validate_set_content_parameters)(partition_data *partition,
const char *parameters);
bool (*validate_initialize)(partition_data *partition, char *name,
const char *parameters);
bool (*validate_resize)(partition_data* partition, off_t* size);
bool (*validate_move)(partition_data* partition, off_t* start);
bool (*validate_set_content_name)(partition_data* partition,
char* name);
bool (*validate_set_content_parameters)(partition_data* partition,
const char* parameters);
bool (*validate_initialize)(partition_data* partition, char* name,
const char* parameters);
/* shadow partition modification (device is write locked) */
status_t (*shadow_changed)(partition_data *partition,
partition_data *child, uint32 operation);
status_t (*shadow_changed)(partition_data* partition,
partition_data* child, uint32 operation);
/* writing (the device is NOT locked) */
status_t (*defragment)(int fd, partition_id partition,
@ -287,72 +287,74 @@ struct file_system_module_info {
status_t (*move)(int fd, partition_id partition, off_t offset,
disk_job_id job);
status_t (*set_content_name)(int fd, partition_id partition,
const char *name, disk_job_id job);
const char* name, disk_job_id job);
status_t (*set_content_parameters)(int fd, partition_id partition,
const char *parameters, disk_job_id job);
status_t (*initialize)(int fd, partition_id partition, const char *name,
const char *parameters, off_t partitionSize, disk_job_id job);
const char* parameters, disk_job_id job);
status_t (*initialize)(int fd, partition_id partition, const char* name,
const char* parameters, off_t partitionSize, disk_job_id job);
};
/* file system add-ons only prototypes */
// callbacks for do_iterative_fd_io()
typedef status_t (*iterative_io_get_vecs)(void *cookie, io_request* request,
off_t offset, size_t size, struct file_io_vec *vecs,
size_t *_count);
typedef status_t (*iterative_io_get_vecs)(void* cookie, io_request* request,
off_t offset, size_t size, struct file_io_vec* vecs,
size_t* _count);
typedef status_t (*iterative_io_finished)(void* cookie, io_request* request,
status_t status, bool partialTransfer, size_t bytesTransferred);
extern status_t new_vnode(fs_volume *volume, ino_t vnodeID, void *privateNode,
fs_vnode_ops *ops);
extern status_t publish_vnode(fs_volume *volume, ino_t vnodeID,
void *privateNode, fs_vnode_ops *ops, int type,
extern status_t new_vnode(fs_volume* volume, ino_t vnodeID, void* privateNode,
fs_vnode_ops* ops);
extern status_t publish_vnode(fs_volume* volume, ino_t vnodeID,
void* privateNode, fs_vnode_ops* ops, int type,
uint32 flags);
extern status_t get_vnode(fs_volume *volume, ino_t vnodeID,
void **_privateNode);
extern status_t put_vnode(fs_volume *volume, ino_t vnodeID);
extern status_t acquire_vnode(fs_volume *volume, ino_t vnodeID);
extern status_t remove_vnode(fs_volume *volume, ino_t vnodeID);
extern status_t unremove_vnode(fs_volume *volume, ino_t vnodeID);
extern status_t get_vnode_removed(fs_volume *volume, ino_t vnodeID,
bool *removed);
extern fs_volume* volume_for_vnode(fs_vnode *vnode);
extern status_t get_vnode(fs_volume* volume, ino_t vnodeID,
void** _privateNode);
extern status_t put_vnode(fs_volume* volume, ino_t vnodeID);
extern status_t acquire_vnode(fs_volume* volume, ino_t vnodeID);
extern status_t remove_vnode(fs_volume* volume, ino_t vnodeID);
extern status_t unremove_vnode(fs_volume* volume, ino_t vnodeID);
extern status_t get_vnode_removed(fs_volume* volume, ino_t vnodeID,
bool* _removed);
extern status_t get_next_removed_vnode(fs_volume* volume, ino_t* _vnodeID,
void** _privateNode);
extern fs_volume* volume_for_vnode(fs_vnode* vnode);
extern status_t read_pages(int fd, off_t pos, const struct iovec *vecs,
size_t count, size_t *_numBytes);
extern status_t write_pages(int fd, off_t pos, const struct iovec *vecs,
size_t count, size_t *_numBytes);
extern status_t read_pages(int fd, off_t pos, const struct iovec* vecs,
size_t count, size_t* _numBytes);
extern status_t write_pages(int fd, off_t pos, const struct iovec* vecs,
size_t count, size_t* _numBytes);
extern status_t read_file_io_vec_pages(int fd,
const struct file_io_vec *fileVecs, size_t fileVecCount,
const struct iovec *vecs, size_t vecCount,
uint32 *_vecIndex, size_t *_vecOffset, size_t *_bytes);
const struct file_io_vec* fileVecs, size_t fileVecCount,
const struct iovec* vecs, size_t vecCount,
uint32* _vecIndex, size_t* _vecOffset, size_t* _bytes);
extern status_t write_file_io_vec_pages(int fd,
const struct file_io_vec *fileVecs, size_t fileVecCount,
const struct iovec *vecs, size_t vecCount,
uint32 *_vecIndex, size_t *_vecOffset, size_t *_bytes);
extern status_t do_fd_io(int fd, io_request *request);
extern status_t do_iterative_fd_io(int fd, io_request *request,
const struct file_io_vec* fileVecs, size_t fileVecCount,
const struct iovec* vecs, size_t vecCount,
uint32* _vecIndex, size_t* _vecOffset, size_t* _bytes);
extern status_t do_fd_io(int fd, io_request* request);
extern status_t do_iterative_fd_io(int fd, io_request* request,
iterative_io_get_vecs getVecs,
iterative_io_finished finished, void *cookie);
iterative_io_finished finished, void* cookie);
extern status_t notify_entry_created(dev_t device, ino_t directory,
const char *name, ino_t node);
const char* name, ino_t node);
extern status_t notify_entry_removed(dev_t device, ino_t directory,
const char *name, ino_t node);
const char* name, ino_t node);
extern status_t notify_entry_moved(dev_t device, ino_t fromDirectory,
const char *fromName, ino_t toDirectory,
const char *toName, ino_t node);
const char* fromName, ino_t toDirectory,
const char* toName, ino_t node);
extern status_t notify_stat_changed(dev_t device, ino_t node,
uint32 statFields);
extern status_t notify_attribute_changed(dev_t device, ino_t node,
const char *attribute, int32 cause);
const char* attribute, int32 cause);
extern status_t notify_query_entry_created(port_id port, int32 token,
dev_t device, ino_t directory, const char *name,
dev_t device, ino_t directory, const char* name,
ino_t node);
extern status_t notify_query_entry_removed(port_id port, int32 token,
dev_t device, ino_t directory, const char *name,
dev_t device, ino_t directory, const char* name,
ino_t node);
#ifdef __cplusplus

81
src/system/kernel/fs/vfs.cpp
View File

@ -3539,10 +3539,6 @@ new_vnode(fs_volume* volume, ino_t vnodeID, void* privateNode,
// file system integrity check:
// test if the vnode already exists and bail out if this is the case!
// ToDo: the R5 implementation obviously checks for a different cookie
// and doesn't panic if they are equal
struct vnode* vnode = lookup_vnode(volume->id, vnodeID);
if (vnode != NULL) {
panic("vnode %ld:%Ld already exists (node = %p, vnode->node = %p)!",
@ -3653,7 +3649,7 @@ get_vnode(fs_volume* volume, ino_t vnodeID, void** _privateNode)
return B_BAD_VALUE;
status_t status = get_vnode(volume->id, vnodeID, &vnode, true, true);
if (status < B_OK)
if (status != B_OK)
return status;
// If this is a layered FS, we need to get the node cookie for the requested
@ -3764,21 +3760,74 @@ unremove_vnode(fs_volume* volume, ino_t vnodeID)
extern "C" status_t
get_vnode_removed(fs_volume* volume, ino_t vnodeID, bool* removed)
get_vnode_removed(fs_volume* volume, ino_t vnodeID, bool* _removed)
{
mutex_lock(&sVnodeMutex);
status_t result;
MutexLocker _(sVnodeMutex);
if (struct vnode* vnode = lookup_vnode(volume->id, vnodeID)) {
if (removed)
*removed = vnode->remove;
result = B_OK;
} else
result = B_BAD_VALUE;
if (_removed != NULL)
*_removed = vnode->remove;
return B_OK;
}
mutex_unlock(&sVnodeMutex);
return result;
return B_BAD_VALUE;
}
/*! Iterates over all removed vnodes of the volume. You own a reference to the
vnode when this call returns; you must initialize *_parentNode with NULL when
calling this function the first time, subsequent calls will automatically
put the previous reference again.
*/
extern "C" status_t
get_next_removed_vnode(fs_volume* volume, ino_t* _vnodeID, void** _privateNode)
{
fs_mount* mount;
status_t status = get_mount(volume->id, &mount);
if (status != B_OK)
return status;
// Retrieve the previous vnode
struct vnode* vnode = NULL;
if (*_privateNode != NULL) {
MutexLocker _(sVnodeMutex);
vnode = lookup_vnode(volume->id, *_vnodeID);
// we already have a reference, so this vnode won't get away
}
// Determine the ID of the next one
RecursiveLocker locker(mount->rlock);
struct vnode* nextVnode;
if (vnode == NULL)
nextVnode = mount->vnodes.First();
else {
nextVnode = mount->vnodes.GetNext(vnode);
dec_vnode_ref_count(vnode, false, true);
}
while (nextVnode != NULL && !nextVnode->remove) {
nextVnode = mount->vnodes.GetNext(nextVnode);
}
if (nextVnode == NULL)
return B_ENTRY_NOT_FOUND;
*_vnodeID = nextVnode->id;
locker.Unlock();
// Try to retrieve the vnode by ID, and return it's private node on success
status = get_vnode(volume->id, *_vnodeID, &vnode, true, true);
if (status != B_OK)
return status;
*_privateNode = vnode->private_node;
return B_OK;
}