static status_t
ext2_lookup(fs_volume* _volume, fs_vnode* _directory, const char* name,
ino_t* _vnodeID)
{
TRACE("ext2_lookup: name address: %p\n", name);
TRACE("ext2_lookup: name: %s\n", name);
Volume* volume = (Volume*)_volume->private_volume;
Inode* directory = (Inode*)_directory->private_node;
// check access permissions
status_t status = directory->CheckPermissions(X_OK);
if (status < B_OK)
return status;
HTree htree(volume, directory);
DirectoryIterator* iterator;
status = htree.Lookup(name, &iterator);
if (status != B_OK)
return status;
ObjectDeleter<DirectoryIterator> iteratorDeleter(iterator);
status = iterator->FindEntry(name, _vnodeID);
if (status != B_OK)
return status;
return get_vnode(volume->FSVolume(), *_vnodeID, NULL);
}
static status_t
ext2_open(fs_volume* _volume, fs_vnode* _node, int openMode, void** _cookie)
{
Volume* volume = (Volume*)_volume->private_volume;
Inode* inode = (Inode*)_node->private_node;
// opening a directory read-only is allowed, although you can't read
// any data from it.
if (inode->IsDirectory() && (openMode & O_RWMASK) != 0)
return B_IS_A_DIRECTORY;
status_t status = inode->CheckPermissions(open_mode_to_access(openMode)
| (openMode & O_TRUNC ? W_OK : 0));
if (status != B_OK)
return status;
// Prepare the cookie
file_cookie* cookie = new(std::nothrow) file_cookie;
if (cookie == NULL)
return B_NO_MEMORY;
ObjectDeleter<file_cookie> cookieDeleter(cookie);
cookie->open_mode = openMode & EXT2_OPEN_MODE_USER_MASK;
cookie->last_size = inode->Size();
cookie->last_notification = system_time();
MethodDeleter<Inode, status_t> fileCacheEnabler(&Inode::EnableFileCache);
if ((openMode & O_NOCACHE) != 0) {
status = inode->DisableFileCache();
if (status != B_OK)
return status;
fileCacheEnabler.SetTo(inode);
}
// Should we truncate the file?
if ((openMode & O_TRUNC) != 0) {
if ((openMode & O_RWMASK) == O_RDONLY)
return B_NOT_ALLOWED;
Transaction transaction(volume->GetJournal());
inode->WriteLockInTransaction(transaction);
status_t status = inode->Resize(transaction, 0);
if (status == B_OK)
status = inode->WriteBack(transaction);
if (status == B_OK)
status = transaction.Done();
if (status != B_OK)
return status;
// TODO: No need to notify file size changed?
}
fileCacheEnabler.Detach();
cookieDeleter.Detach();
*_cookie = cookie;
return B_OK;
}
static status_t
ext2_unlink(fs_volume* _volume, fs_vnode* _directory, const char* name)
{
TRACE("ext2_unlink()\n");
if (strcmp(name, ".") == 0 || strcmp(name, "..") == 0)
return B_NOT_ALLOWED;
Volume* volume = (Volume*)_volume->private_volume;
Inode* directory = (Inode*)_directory->private_node;
status_t status = directory->CheckPermissions(W_OK);
if (status != B_OK)
return status;
TRACE("ext2_unlink(): Starting transaction\n");
Transaction transaction(volume->GetJournal());
directory->WriteLockInTransaction(transaction);
TRACE("ext2_unlink(): Looking up for directory entry\n");
HTree htree(volume, directory);
DirectoryIterator* directoryIterator;
status = htree.Lookup(name, &directoryIterator);
if (status != B_OK)
return status;
ino_t id;
status = directoryIterator->FindEntry(name, &id);
if (status != B_OK)
return status;
Vnode vnode(volume, id);
Inode* inode;
status = vnode.Get(&inode);
if (status != B_OK)
return status;
inode->WriteLockInTransaction(transaction);
status = inode->Unlink(transaction);
if (status != B_OK)
return status;
status = directoryIterator->RemoveEntry(transaction);
if (status != B_OK)
return status;
entry_cache_remove(volume->ID(), directory->ID(), name);
status = transaction.Done();
if (status != B_OK)
entry_cache_add(volume->ID(), directory->ID(), name, id);
else
notify_entry_removed(volume->ID(), directory->ID(), name, id);
return status;
}
static status_t
ext2_open_dir(fs_volume* _volume, fs_vnode* _node, void** _cookie)
{
Inode* inode = (Inode*)_node->private_node;
status_t status = inode->CheckPermissions(R_OK);
if (status < B_OK)
return status;
if (!inode->IsDirectory())
return B_NOT_A_DIRECTORY;
DirectoryIterator* iterator = new(std::nothrow) DirectoryIterator(inode);
if (iterator == NULL)
return B_NO_MEMORY;
*_cookie = iterator;
return B_OK;
}
static status_t
btrfs_lookup(fs_volume* _volume, fs_vnode* _directory, const char* name,
ino_t* _vnodeID)
{
TRACE("btrfs_lookup: name address: %p (%s)\n", name, name);
Volume* volume = (Volume*)_volume->private_volume;
Inode* directory = (Inode*)_directory->private_node;
// check access permissions
status_t status = directory->CheckPermissions(X_OK);
if (status < B_OK)
return status;
status = DirectoryIterator(directory).Lookup(name, strlen(name), _vnodeID);
if (status != B_OK)
return status;
return get_vnode(volume->FSVolume(), *_vnodeID, NULL);
}
static status_t
ext2_create_dir(fs_volume* _volume, fs_vnode* _directory, const char* name,
int mode)
{
TRACE("ext2_create_dir()\n");
Volume* volume = (Volume*)_volume->private_volume;
Inode* directory = (Inode*)_directory->private_node;
if (volume->IsReadOnly())
return B_READ_ONLY_DEVICE;
if (!directory->IsDirectory())
return B_BAD_TYPE;
status_t status = directory->CheckPermissions(W_OK);
if (status != B_OK)
return status;
TRACE("ext2_create_dir(): Starting transaction\n");
Transaction transaction(volume->GetJournal());
ino_t id;
status = Inode::Create(transaction, directory, name,
S_DIRECTORY | (mode & S_IUMSK), 0, EXT2_TYPE_DIRECTORY, NULL, &id);
if (status != B_OK)
return status;
put_vnode(volume->FSVolume(), id);
entry_cache_add(volume->ID(), directory->ID(), name, id);
status = transaction.Done();
if (status != B_OK) {
entry_cache_remove(volume->ID(), directory->ID(), name);
return status;
}
notify_entry_created(volume->ID(), directory->ID(), name, id);
TRACE("ext2_create_dir(): Done\n");
return B_OK;
}
static status_t
btrfs_open(fs_volume* /*_volume*/, fs_vnode* _node, int openMode,
void** _cookie)
{
Inode* inode = (Inode*)_node->private_node;
// opening a directory read-only is allowed, although you can't read
// any data from it.
if (inode->IsDirectory() && (openMode & O_RWMASK) != 0)
return B_IS_A_DIRECTORY;
status_t status = inode->CheckPermissions(open_mode_to_access(openMode)
| (openMode & O_TRUNC ? W_OK : 0));
if (status != B_OK)
return status;
// Prepare the cookie
file_cookie* cookie = new(std::nothrow) file_cookie;
if (cookie == NULL)
return B_NO_MEMORY;
ObjectDeleter<file_cookie> cookieDeleter(cookie);
cookie->open_mode = openMode & BTRFS_OPEN_MODE_USER_MASK;
cookie->last_size = inode->Size();
cookie->last_notification = system_time();
if ((openMode & O_NOCACHE) != 0 && inode->FileCache() != NULL) {
// Disable the file cache, if requested?
status = file_cache_disable(inode->FileCache());
if (status != B_OK)
return status;
}
cookieDeleter.Detach();
*_cookie = cookie;
return B_OK;
}
static status_t
btrfs_access(fs_volume* _volume, fs_vnode* _node, int accessMode)
{
Inode* inode = (Inode*)_node->private_node;
return inode->CheckPermissions(accessMode);
}
/*static*/ status_t
Inode::Create(Transaction& transaction, Inode* parent, const char* name,
int32 mode, int openMode, uint8 type, bool* _created, ino_t* _id,
Inode** _inode, fs_vnode_ops* vnodeOps, uint32 publishFlags)
{
TRACE("Inode::Create()\n");
Volume* volume = transaction.GetVolume();
DirectoryIterator* entries = NULL;
ObjectDeleter<DirectoryIterator> entriesDeleter;
if (parent != NULL) {
parent->WriteLockInTransaction(transaction);
TRACE("Inode::Create(): Looking up entry destination\n");
HTree htree(volume, parent);
status_t status = htree.Lookup(name, &entries);
if (status == B_ENTRY_NOT_FOUND) {
panic("We need to add the first node.\n");
return B_ERROR;
}
if (status != B_OK)
return status;
entriesDeleter.SetTo(entries);
TRACE("Inode::Create(): Looking up to see if file already exists\n");
ino_t entryID;
status = entries->FindEntry(name, &entryID);
if (status == B_OK) {
// File already exists
TRACE("Inode::Create(): File already exists\n");
if (S_ISDIR(mode) || S_ISLNK(mode) || (openMode & O_EXCL) != 0)
return B_FILE_EXISTS;
Vnode vnode(volume, entryID);
Inode* inode;
status = vnode.Get(&inode);
if (status != B_OK) {
TRACE("Inode::Create() Failed to get the inode from the "
"vnode\n");
return B_ENTRY_NOT_FOUND;
}
if (inode->IsDirectory() && (openMode & O_RWMASK) != O_RDONLY)
return B_IS_A_DIRECTORY;
if ((openMode & O_DIRECTORY) != 0 && !inode->IsDirectory())
return B_NOT_A_DIRECTORY;
if (inode->CheckPermissions(open_mode_to_access(openMode)
| ((openMode & O_TRUNC) != 0 ? W_OK : 0)) != B_OK)
return B_NOT_ALLOWED;
if ((openMode & O_TRUNC) != 0) {
// Truncate requested
TRACE("Inode::Create(): Truncating file\n");
inode->WriteLockInTransaction(transaction);
status = inode->Resize(transaction, 0);
if (status != B_OK)
return status;
}
if (_created != NULL)
*_created = false;
if (_id != NULL)
*_id = inode->ID();
if (_inode != NULL)
*_inode = inode;
if (_id != NULL || _inode != NULL)
vnode.Keep();
TRACE("Inode::Create(): Done opening file\n");
return B_OK;
/*} else if ((mode & S_ATTR_DIR) == 0) {
TRACE("Inode::Create(): (mode & S_ATTR_DIR) == 0\n");
return B_BAD_VALUE;*/
} else if ((openMode & O_DIRECTORY) != 0) {
TRACE("Inode::Create(): (openMode & O_DIRECTORY) != 0\n");
return B_ENTRY_NOT_FOUND;
}
// Return to initial position
TRACE("Inode::Create(): Restarting iterator\n");
entries->Restart();
}
status_t status;
if (parent != NULL) {
status = parent->CheckPermissions(W_OK);
if (status != B_OK)
return status;
}
TRACE("Inode::Create(): Allocating inode\n");
ino_t id;
status = volume->AllocateInode(transaction, parent, mode, id);
if (status != B_OK) {
ERROR("Inode::Create(): AllocateInode() failed\n");
return status;
}
if (entries != NULL) {
size_t nameLength = strlen(name);
status = entries->AddEntry(transaction, name, nameLength, id, type);
if (status != B_OK) {
ERROR("Inode::Create(): AddEntry() failed\n");
return status;
}
}
TRACE("Inode::Create(): Creating inode\n");
Inode* inode = new(std::nothrow) Inode(volume);
if (inode == NULL)
return B_NO_MEMORY;
TRACE("Inode::Create(): Getting node structure\n");
ext2_inode& node = inode->Node();
TRACE("Inode::Create(): Initializing inode data\n");
memset(&node, 0, sizeof(ext2_inode));
node.SetMode(mode);
node.SetUserID(geteuid());
node.SetGroupID(parent != NULL ? parent->Node().GroupID() : getegid());
node.SetNumLinks(inode->IsDirectory() ? 2 : 1);
TRACE("Inode::Create(): Updating time\n");
struct timespec timespec;
_BigtimeToTimespec(real_time_clock_usecs(), ×pec);
inode->SetAccessTime(×pec);
inode->SetCreationTime(×pec);
inode->SetModificationTime(×pec);
node.SetFlags(parent->Flags() & EXT2_INODE_INHERITED);
if (volume->HasExtentsFeature()
&& (inode->IsDirectory() || inode->IsFile())) {
node.SetFlag(EXT2_INODE_EXTENTS);
ExtentStream stream(volume, &node.extent_stream, 0);
stream.Init();
ASSERT(stream.Check());
}
if (sizeof(ext2_inode) < volume->InodeSize())
node.SetExtraInodeSize(sizeof(ext2_inode) - EXT2_INODE_NORMAL_SIZE);
TRACE("Inode::Create(): Updating ID\n");
inode->fID = id;
if (inode->IsDirectory()) {
TRACE("Inode::Create(): Initializing directory\n");
status = inode->InitDirectory(transaction, parent);
if (status != B_OK) {
ERROR("Inode::Create(): InitDirectory() failed\n");
delete inode;
return status;
}
}
// TODO: Maybe it can be better
/*if (volume->HasExtendedAttributes()) {
TRACE("Inode::Create(): Initializing extended attributes\n");
uint32 blockGroup = 0;
uint32 pos = 0;
uint32 allocated;
status = volume->AllocateBlocks(transaction, 1, 1, blockGroup, pos,
allocated);
if (status != B_OK)
return status;
// Clear the new block
uint32 blockNum = volume->FirstDataBlock() + pos +
volume->BlocksPerGroup() * blockGroup;
CachedBlock cached(volume);
cached.SetToWritable(transaction, blockNum, true);
node.SetExtendedAttributesBlock(blockNum);
}*/
TRACE("Inode::Create(): Saving inode\n");
status = inode->WriteBack(transaction);
if (status != B_OK) {
delete inode;
return status;
}
TRACE("Inode::Create(): Creating vnode\n");
Vnode vnode;
status = vnode.Publish(transaction, inode, vnodeOps, publishFlags);
if (status != B_OK)
return status;
if (!inode->IsSymLink()) {
// Vnode::Publish doesn't publish symlinks
if (!inode->IsDirectory()) {
status = inode->EnableFileCache();
if (status != B_OK)
return status;
}
inode->WriteLockInTransaction(transaction);
}
if (_created)
*_created = true;
if (_id != NULL)
*_id = id;
if (_inode != NULL)
*_inode = inode;
if (_id != NULL || _inode != NULL)
vnode.Keep();
TRACE("Inode::Create(): Deleting entries iterator\n");
DirectoryIterator* iterator = entriesDeleter.Detach();
TRACE("Inode::Create(): Entries iterator: %p\n", entries);
delete iterator;
TRACE("Inode::Create(): Done\n");
return B_OK;
}
static status_t
ext2_rename(fs_volume* _volume, fs_vnode* _oldDir, const char* oldName,
fs_vnode* _newDir, const char* newName)
{
TRACE("ext2_rename()\n");
Volume* volume = (Volume*)_volume->private_volume;
Inode* oldDirectory = (Inode*)_oldDir->private_node;
Inode* newDirectory = (Inode*)_newDir->private_node;
if (oldDirectory == newDirectory && strcmp(oldName, newName) == 0)
return B_OK;
Transaction transaction(volume->GetJournal());
oldDirectory->WriteLockInTransaction(transaction);
if (oldDirectory != newDirectory)
newDirectory->WriteLockInTransaction(transaction);
status_t status = oldDirectory->CheckPermissions(W_OK);
if (status == B_OK)
status = newDirectory->CheckPermissions(W_OK);
if (status != B_OK)
return status;
HTree oldHTree(volume, oldDirectory);
DirectoryIterator* oldIterator;
status = oldHTree.Lookup(oldName, &oldIterator);
if (status != B_OK)
return status;
ObjectDeleter<DirectoryIterator> oldIteratorDeleter(oldIterator);
ino_t oldID;
status = oldIterator->FindEntry(oldName, &oldID);
if (status != B_OK)
return status;
if (oldDirectory != newDirectory) {
TRACE("ext2_rename(): Different parent directories\n");
CachedBlock cached(volume);
ino_t parentID = newDirectory->ID();
ino_t oldDirID = oldDirectory->ID();
do {
Vnode vnode(volume, parentID);
Inode* parent;
status = vnode.Get(&parent);
if (status != B_OK)
return B_IO_ERROR;
fsblock_t blockNum;
status = parent->FindBlock(0, blockNum);
if (status != B_OK)
return status;
const HTreeRoot* data = (const HTreeRoot*)cached.SetTo(blockNum);
parentID = data->dotdot.InodeID();
} while (parentID != oldID && parentID != oldDirID
&& parentID != EXT2_ROOT_NODE);
if (parentID == oldID)
return B_BAD_VALUE;
}
HTree newHTree(volume, newDirectory);
DirectoryIterator* newIterator;
status = newHTree.Lookup(newName, &newIterator);
if (status != B_OK)
return status;
ObjectDeleter<DirectoryIterator> newIteratorDeleter(newIterator);
Vnode vnode(volume, oldID);
Inode* inode;
status = vnode.Get(&inode);
if (status != B_OK)
return status;
uint8 fileType;
// TODO: Support all file types?
if (inode->IsDirectory())
fileType = EXT2_TYPE_DIRECTORY;
else if (inode->IsSymLink())
fileType = EXT2_TYPE_SYMLINK;
else
fileType = EXT2_TYPE_FILE;
// Add entry in destination directory
ino_t existentID;
status = newIterator->FindEntry(newName, &existentID);
if (status == B_OK) {
if (existentID == oldID) {
// Remove entry in oldID
// return inode->Unlink();
return B_BAD_VALUE;
}
Vnode vnodeExistent(volume, existentID);
Inode* existent;
if (vnodeExistent.Get(&existent) != B_OK)
return B_NAME_IN_USE;
if (existent->IsDirectory() != inode->IsDirectory()) {
return existent->IsDirectory() ? B_IS_A_DIRECTORY
: B_NOT_A_DIRECTORY;
}
// TODO: Perhaps we have to revert this in case of error?
status = newIterator->ChangeEntry(transaction, oldID, fileType);
if (status != B_OK)
return status;
notify_entry_removed(volume->ID(), newDirectory->ID(), newName,
existentID);
} else if (status == B_ENTRY_NOT_FOUND) {
newIterator->Restart();
status = newIterator->AddEntry(transaction, newName, strlen(newName),
oldID, fileType);
if (status != B_OK)
return status;
} else
return status;
// Remove entry from source folder
status = oldIterator->RemoveEntry(transaction);
if (status != B_OK)
return status;
inode->WriteLockInTransaction(transaction);
if (oldDirectory != newDirectory && inode->IsDirectory()) {
DirectoryIterator inodeIterator(inode);
status = inodeIterator.FindEntry("..");
if (status == B_ENTRY_NOT_FOUND) {
TRACE("Corrupt file system. Missing \"..\" in directory %"
B_PRIdINO "\n", inode->ID());
return B_BAD_DATA;
} else if (status != B_OK)
return status;
inodeIterator.ChangeEntry(transaction, newDirectory->ID(),
(uint8)EXT2_TYPE_DIRECTORY);
}
status = inode->WriteBack(transaction);
if (status != B_OK)
return status;
entry_cache_remove(volume->ID(), oldDirectory->ID(), oldName);
entry_cache_add(volume->ID(), newDirectory->ID(), newName, oldID);
status = transaction.Done();
if (status != B_OK) {
entry_cache_remove(volume->ID(), oldDirectory->ID(), newName);
entry_cache_add(volume->ID(), newDirectory->ID(), oldName, oldID);
return status;
}
notify_entry_moved(volume->ID(), oldDirectory->ID(), oldName,
newDirectory->ID(), newName, oldID);
return B_OK;
}
static status_t
ext2_create_symlink(fs_volume* _volume, fs_vnode* _directory, const char* name,
const char* path, int mode)
{
TRACE("ext2_create_symlink()\n");
Volume* volume = (Volume*)_volume->private_volume;
Inode* directory = (Inode*)_directory->private_node;
if (volume->IsReadOnly())
return B_READ_ONLY_DEVICE;
if (!directory->IsDirectory())
return B_BAD_TYPE;
status_t status = directory->CheckPermissions(W_OK);
if (status != B_OK)
return status;
TRACE("ext2_create_symlink(): Starting transaction\n");
Transaction transaction(volume->GetJournal());
Inode* link;
ino_t id;
status = Inode::Create(transaction, directory, name, S_SYMLINK | 0777,
0, (uint8)EXT2_TYPE_SYMLINK, NULL, &id, &link);
if (status != B_OK)
return status;
// TODO: We have to prepare the link before publishing?
size_t length = strlen(path);
TRACE("ext2_create_symlink(): Path (%s) length: %d\n", path, (int)length);
if (length < EXT2_SHORT_SYMLINK_LENGTH) {
strcpy(link->Node().symlink, path);
link->Node().SetSize((uint32)length);
TRACE("ext2_create_symlink(): Publishing vnode\n");
publish_vnode(volume->FSVolume(), id, link, &gExt2VnodeOps,
link->Mode(), 0);
put_vnode(volume->FSVolume(), id);
} else {
TRACE("ext2_create_symlink(): Publishing vnode\n");
publish_vnode(volume->FSVolume(), id, link, &gExt2VnodeOps,
link->Mode(), 0);
put_vnode(volume->FSVolume(), id);
if (!link->HasFileCache()) {
status = link->CreateFileCache();
if (status != B_OK)
return status;
}
size_t written = length;
status = link->WriteAt(transaction, 0, (const uint8*)path, &written);
if (status == B_OK && written != length)
status = B_IO_ERROR;
}
if (status == B_OK)
status = link->WriteBack(transaction);
entry_cache_add(volume->ID(), directory->ID(), name, id);
status = transaction.Done();
if (status != B_OK) {
entry_cache_remove(volume->ID(), directory->ID(), name);
return status;
}
notify_entry_created(volume->ID(), directory->ID(), name, id);
TRACE("ext2_create_symlink(): Done\n");
return status;
}
status_t
ext2_write_stat(fs_volume* _volume, fs_vnode* _node, const struct stat* stat,
uint32 mask)
{
TRACE("ext2_write_stat\n");
Volume* volume = (Volume*)_volume->private_volume;
if (volume->IsReadOnly())
return B_READ_ONLY_DEVICE;
Inode* inode = (Inode*)_node->private_node;
ext2_inode& node = inode->Node();
bool updateTime = false;
uid_t uid = geteuid();
bool isOwnerOrRoot = uid == 0 || uid == (uid_t)node.UserID();
bool hasWriteAccess = inode->CheckPermissions(W_OK) == B_OK;
TRACE("ext2_write_stat: Starting transaction\n");
Transaction transaction(volume->GetJournal());
inode->WriteLockInTransaction(transaction);
if ((mask & B_STAT_SIZE) != 0 && inode->Size() != stat->st_size) {
if (inode->IsDirectory())
return B_IS_A_DIRECTORY;
if (!inode->IsFile())
return B_BAD_VALUE;
if (!hasWriteAccess)
return B_NOT_ALLOWED;
TRACE("ext2_write_stat: Old size: %ld, new size: %ld\n",
(long)inode->Size(), (long)stat->st_size);
off_t oldSize = inode->Size();
status_t status = inode->Resize(transaction, stat->st_size);
if(status != B_OK)
return status;
if ((mask & B_STAT_SIZE_INSECURE) == 0) {
rw_lock_write_unlock(inode->Lock());
inode->FillGapWithZeros(oldSize, inode->Size());
rw_lock_write_lock(inode->Lock());
}
updateTime = true;
}
if ((mask & B_STAT_MODE) != 0) {
// only the user or root can do that
if (!isOwnerOrRoot)
return B_NOT_ALLOWED;
node.UpdateMode(stat->st_mode, S_IUMSK);
updateTime = true;
}
if ((mask & B_STAT_UID) != 0) {
// only root should be allowed
if (uid != 0)
return B_NOT_ALLOWED;
node.SetUserID(stat->st_uid);
updateTime = true;
}
if ((mask & B_STAT_GID) != 0) {
// only the user or root can do that
if (!isOwnerOrRoot)
return B_NOT_ALLOWED;
node.SetGroupID(stat->st_gid);
updateTime = true;
}
if ((mask & B_STAT_MODIFICATION_TIME) != 0 || updateTime
|| (mask & B_STAT_CHANGE_TIME) != 0) {
// the user or root can do that or any user with write access
if (!isOwnerOrRoot && !hasWriteAccess)
return B_NOT_ALLOWED;
struct timespec newTimespec = { 0, 0};
if ((mask & B_STAT_MODIFICATION_TIME) != 0)
newTimespec = stat->st_mtim;
if ((mask & B_STAT_CHANGE_TIME) != 0
&& stat->st_ctim.tv_sec > newTimespec.tv_sec)
newTimespec = stat->st_ctim;
if (newTimespec.tv_sec == 0)
Inode::_BigtimeToTimespec(real_time_clock_usecs(), &newTimespec);
inode->SetModificationTime(&newTimespec);
}
if ((mask & B_STAT_CREATION_TIME) != 0) {
// the user or root can do that or any user with write access
if (!isOwnerOrRoot && !hasWriteAccess)
return B_NOT_ALLOWED;
inode->SetCreationTime(&stat->st_crtim);
}
status_t status = inode->WriteBack(transaction);
if (status == B_OK)
status = transaction.Done();
if (status == B_OK)
notify_stat_changed(volume->ID(), -1, inode->ID(), mask);
return status;
}