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C++ HFS_SB函数代码示例

本文整理汇总了C++中HFS_SB函数的典型用法代码示例。如果您正苦于以下问题：C++ HFS_SB函数的具体用法？C++ HFS_SB怎么用？C++ HFS_SB使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。


在下文中一共展示了HFS_SB函数的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: hfs_remount

static int hfs_remount(struct super_block *sb, int *flags, char *data)
{
	*flags |= MS_NODIRATIME;
	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
		return 0;
	if (!(*flags & MS_RDONLY)) {
		if (!(HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {
			printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, "
			       "running fsck.hfs is recommended.  leaving read-only.\n");
			sb->s_flags |= MS_RDONLY;
			*flags |= MS_RDONLY;
		} else if (HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_SLOCK)) {
			printk(KERN_WARNING "hfs: filesystem is marked locked, leaving read-only.\n");
			sb->s_flags |= MS_RDONLY;
			*flags |= MS_RDONLY;
		}
	}
	return 0;
}
开发者ID:325116067，项目名称:semc-qsd8x50，代码行数:19，代码来源:super.c

示例2: hfs_mdb_put

/*
 * hfs_mdb_put()
 *
 * Release the resources associated with the in-core MDB.  */
void hfs_mdb_put(struct super_block *sb)
{
	if (!HFS_SB(sb))
		return;
	/* free the B-trees */
	hfs_btree_close(HFS_SB(sb)->ext_tree);
	hfs_btree_close(HFS_SB(sb)->cat_tree);

	/* free the buffers holding the primary and alternate MDBs */
	brelse(HFS_SB(sb)->mdb_bh);
	brelse(HFS_SB(sb)->alt_mdb_bh);

	if (HFS_SB(sb)->nls_io)
		unload_nls(HFS_SB(sb)->nls_io);
	if (HFS_SB(sb)->nls_disk)
		unload_nls(HFS_SB(sb)->nls_disk);

	kfree(HFS_SB(sb));
	sb->s_fs_info = NULL;
}
开发者ID:458941968，项目名称:mini2440-kernel-2.6.29，代码行数:24，代码来源:mdb.c

示例3: hfs_releasepage

int hfs_releasepage(struct page *page, int mask)
{
	struct inode *inode = page->mapping->host;
	struct super_block *sb = inode->i_sb;
	struct hfs_btree *tree;
	struct hfs_bnode *node;
	u32 nidx;
	int i, res = 1;

	switch (inode->i_ino) {
	case HFS_EXT_CNID:
		tree = HFS_SB(sb)->ext_tree;
		break;
	case HFS_CAT_CNID:
		tree = HFS_SB(sb)->cat_tree;
		break;
	default:
		BUG();
		return 0;
	}
	if (tree->node_size >= PAGE_CACHE_SIZE) {
		nidx = page->index >> (tree->node_size_shift - PAGE_CACHE_SHIFT);
		spin_lock(&tree->hash_lock);
		node = hfs_bnode_findhash(tree, nidx);
		if (!node)
			;
		else if (atomic_read(&node->refcnt))
			res = 0;
		else for (i = 0; i < tree->pages_per_bnode; i++) {
			if (PageActive(node->page[i])) {
				res = 0;
				break;
			}
		}
		if (res && node) {
			hfs_bnode_unhash(node);
			hfs_bnode_free(node);
		}
		spin_unlock(&tree->hash_lock);
	} else {
开发者ID:Antonio-Zhou，项目名称:Linux-2.6.11，代码行数:40，代码来源:inode.c

示例4: hfs_mdb_put

/*
 * hfs_mdb_put()
 *
 * Release the resources associated with the in-core MDB.  */
void hfs_mdb_put(struct super_block *sb)
{
	if (!HFS_SB(sb))
		return;
	/* free the B-trees */
	hfs_btree_close(HFS_SB(sb)->ext_tree);
	hfs_btree_close(HFS_SB(sb)->cat_tree);

	/* free the buffers holding the primary and alternate MDBs */
	brelse(HFS_SB(sb)->mdb_bh);
	brelse(HFS_SB(sb)->alt_mdb_bh);

	unload_nls(HFS_SB(sb)->nls_io);
	unload_nls(HFS_SB(sb)->nls_disk);

	free_pages((unsigned long)HFS_SB(sb)->bitmap, PAGE_SIZE < 8192 ? 1 : 0);
	kfree(HFS_SB(sb));
	sb->s_fs_info = NULL;
}
开发者ID:19Dan01，项目名称:linux，代码行数:23，代码来源:mdb.c

示例5: hfs_put_super

/*
 * hfs_put_super()
 *
 * This is the put_super() entry in the super_operations structure for
 * HFS filesystems.  The purpose is to release the resources
 * associated with the superblock sb.
 */
static void hfs_put_super(struct super_block *sb)
{
	struct hfs_mdb *mdb = HFS_SB(sb)->s_mdb;
 
	if (!(sb->s_flags & MS_RDONLY)) {
		hfs_mdb_commit(mdb, 0);
		sb->s_dirt = 0;
	}

	/* release the MDB's resources */
	hfs_mdb_put(mdb, sb->s_flags & MS_RDONLY);

	kfree(sb->s_fs_info);
	sb->s_fs_info = NULL;
}
开发者ID:xricson，项目名称:knoppix，代码行数:22，代码来源:super.c

示例6: hfs_statfs

/*
 * hfs_statfs()
 *
 * This is the statfs() entry in the super_operations structure for
 * HFS filesystems.  The purpose is to return various data about the
 * filesystem.
 *
 * changed f_files/f_ffree to reflect the fs_ablock/free_ablocks.
 */
static int hfs_statfs(struct super_block *sb, struct statfs *buf)
{
	struct hfs_mdb *mdb = HFS_SB(sb)->s_mdb;

	buf->f_type = HFS_SUPER_MAGIC;
	buf->f_bsize = HFS_SECTOR_SIZE;
	buf->f_blocks = mdb->alloc_blksz * mdb->fs_ablocks;
	buf->f_bfree = mdb->alloc_blksz * mdb->free_ablocks;
	buf->f_bavail = buf->f_bfree;
	buf->f_files = mdb->fs_ablocks;  
	buf->f_ffree = mdb->free_ablocks;
	buf->f_namelen = HFS_NAMELEN;

	return 0;
}
开发者ID:hugh712，项目名称:Jollen，代码行数:24，代码来源:super.c

示例7: hfs_put_super

/*
 * hfs_put_super()
 *
 * This is the put_super() entry in the super_operations structure for
 * HFS filesystems.  The purpose is to release the resources
 * associated with the superblock sb.
 */
static void hfs_put_super(struct super_block *sb)
{
	struct hfs_mdb *mdb = HFS_SB(sb)->s_mdb;
 
	if (!(sb->s_flags & MS_RDONLY)) {
		hfs_mdb_commit(mdb, 0);
		sb->s_dirt = 0;
	}

	/* release the MDB's resources */
	hfs_mdb_put(mdb, sb->s_flags & MS_RDONLY);

	/* restore default blocksize for the device */
	set_blocksize(sb->s_dev, BLOCK_SIZE);
}
开发者ID:hugh712，项目名称:Jollen，代码行数:22，代码来源:super.c

示例8: hfs_write_super

/*
 * hfs_write_super()
 *
 * Description:
 *   This function is called by the VFS only. When the filesystem
 *   is mounted r/w it updates the MDB on disk.
 * Input Variable(s):
 *   struct super_block *sb: Pointer to the hfs superblock
 * Output Variable(s):
 *   NONE
 * Returns:
 *   void
 * Preconditions:
 *   'sb' points to a "valid" (struct super_block).
 * Postconditions:
 *   The MDB is marked 'unsuccessfully unmounted' by clearing bit 8 of drAtrb
 *   (hfs_put_super() must set this flag!). Some MDB fields are updated
 *   and the MDB buffer is written to disk by calling hfs_mdb_commit().
 */
static void hfs_write_super(struct super_block *sb)
{
	struct hfs_mdb *mdb = HFS_SB(sb)->s_mdb;

	/* is this a valid hfs superblock? */
	if (!sb || sb->s_magic != HFS_SUPER_MAGIC) {
		return;
	}

	if (!(sb->s_flags & MS_RDONLY)) {
		/* sync everything to the buffers */
		hfs_mdb_commit(mdb, 0);
	}
	sb->s_dirt = 0;
}
开发者ID:hugh712，项目名称:Jollen，代码行数:34，代码来源:super.c

示例9: hfs_remount

static int hfs_remount(struct super_block *sb, int *flags, char *data)
{
	*flags |= MS_NODIRATIME;
	if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
		return 0;
	if (!(*flags & MS_RDONLY)) {
		if (!(HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_UNMNT))) {
			printk(KERN_WARNING "hfs: filesystem was not cleanly unmounted, "
			       "running fsck.hfs is recommended.  leaving read-only.\n");
        /* Foxconn removed start pling 05/31/2010 */
        /* Ignore this flag to force writeable */
#if 0
			sb->s_flags |= MS_RDONLY;
			*flags |= MS_RDONLY;
#endif
        /* Foxconn removed end pling 05/31/2010 */
		} else if (HFS_SB(sb)->mdb->drAtrb & cpu_to_be16(HFS_SB_ATTRIB_SLOCK)) {
			printk(KERN_WARNING "hfs: filesystem is marked locked, leaving read-only.\n");
			sb->s_flags |= MS_RDONLY;
			*flags |= MS_RDONLY;
		}
	}
	return 0;
}
开发者ID:hajuuk，项目名称:R7000，代码行数:24，代码来源:super.c

示例10: hfs_mark_mdb_dirty

void hfs_mark_mdb_dirty(struct super_block *sb)
{
	struct hfs_sb_info *sbi = HFS_SB(sb);
	unsigned long delay;

	if (sb->s_flags & MS_RDONLY)
		return;

	spin_lock(&sbi->work_lock);
	if (!sbi->work_queued) {
		delay = msecs_to_jiffies(dirty_writeback_interval * 10);
		queue_delayed_work(system_long_wq, &sbi->mdb_work, delay);
		sbi->work_queued = 1;
	}
	spin_unlock(&sbi->work_lock);
}
开发者ID:19Dan01，项目名称:linux，代码行数:16，代码来源:super.c

示例11: __hfs_getxattr

static ssize_t __hfs_getxattr(struct inode *inode, enum hfs_xattr_type type,
			      void *value, size_t size)
{
	struct hfs_find_data fd;
	hfs_cat_rec rec;
	struct hfs_cat_file *file;
	ssize_t res = 0;

	if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
		return -EOPNOTSUPP;

	if (size) {
		res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
		if (res)
			return res;
		fd.search_key->cat = HFS_I(inode)->cat_key;
		res = hfs_brec_find(&fd);
		if (res)
			goto out;
		hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
				sizeof(struct hfs_cat_file));
	}
	file = &rec.file;

	switch (type) {
	case HFS_TYPE:
		if (size >= 4) {
			memcpy(value, &file->UsrWds.fdType, 4);
			res = 4;
		} else
			res = size ? -ERANGE : 4;
		break;

	case HFS_CREATOR:
		if (size >= 4) {
			memcpy(value, &file->UsrWds.fdCreator, 4);
			res = 4;
		} else
			res = size ? -ERANGE : 4;
		break;
	}

out:
	if (size)
		hfs_find_exit(&fd);
	return res;
}
开发者ID:AshishNamdev，项目名称:linux，代码行数:47，代码来源:attr.c

示例12: __hfs_setxattr

static int __hfs_setxattr(struct inode *inode, enum hfs_xattr_type type,
			  const void *value, size_t size, int flags)
{
	struct hfs_find_data fd;
	hfs_cat_rec rec;
	struct hfs_cat_file *file;
	int res;

	if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
		return -EOPNOTSUPP;

	res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
	if (res)
		return res;
	fd.search_key->cat = HFS_I(inode)->cat_key;
	res = hfs_brec_find(&fd);
	if (res)
		goto out;
	hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
			sizeof(struct hfs_cat_file));
	file = &rec.file;

	switch (type) {
	case HFS_TYPE:
		if (size == 4)
			memcpy(&file->UsrWds.fdType, value, 4);
		else
			res = -ERANGE;
		break;

	case HFS_CREATOR:
		if (size == 4)
			memcpy(&file->UsrWds.fdCreator, value, 4);
		else
			res = -ERANGE;
		break;
	}

	if (!res)
		hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
				sizeof(struct hfs_cat_file));
out:
	hfs_find_exit(&fd);
	return res;
}
开发者ID:AshishNamdev，项目名称:linux，代码行数:45，代码来源:attr.c

示例13: hfs_statfs

/*
 * hfs_statfs()
 *
 * This is the statfs() entry in the super_operations structure for
 * HFS filesystems.  The purpose is to return various data about the
 * filesystem.
 *
 * changed f_files/f_ffree to reflect the fs_ablock/free_ablocks.
 */
static int hfs_statfs(struct super_block *sb, struct kstatfs *buf)
{
	buf->f_type = HFS_SUPER_MAGIC;
	buf->f_bsize = sb->s_blocksize;
	buf->f_blocks = (u32)HFS_SB(sb)->fs_ablocks * HFS_SB(sb)->fs_div;
	buf->f_bfree = (u32)HFS_SB(sb)->free_ablocks * HFS_SB(sb)->fs_div;
	buf->f_bavail = buf->f_bfree;
	buf->f_files = HFS_SB(sb)->fs_ablocks;
	buf->f_ffree = HFS_SB(sb)->free_ablocks;
	buf->f_namelen = HFS_NAMELEN;

	return 0;
}
开发者ID:FelipeFernandes1988，项目名称:Alice-1121-Modem，代码行数:22，代码来源:super.c

示例14: hfs_getxattr

ssize_t hfs_getxattr(struct dentry *dentry, const char *name,
			 void *value, size_t size)
{
	struct inode *inode = dentry->d_inode;
	struct hfs_find_data fd;
	hfs_cat_rec rec;
	struct hfs_cat_file *file;
	ssize_t res = 0;

	if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
		return -EOPNOTSUPP;

	if (size) {
		res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
		if (res)
			return res;
		fd.search_key->cat = HFS_I(inode)->cat_key;
		res = hfs_brec_find(&fd);
		if (res)
			goto out;
		hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
				sizeof(struct hfs_cat_file));
	}
	file = &rec.file;

	if (!strcmp(name, "hfs.type")) {
		if (size >= 4) {
			memcpy(value, &file->UsrWds.fdType, 4);
			res = 4;
		} else
			res = size ? -ERANGE : 4;
	} else if (!strcmp(name, "hfs.creator")) {
		if (size >= 4) {
			memcpy(value, &file->UsrWds.fdCreator, 4);
			res = 4;
		} else
			res = size ? -ERANGE : 4;
	} else
		res = -ENODATA;
out:
	if (size)
		hfs_find_exit(&fd);
	return res;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:44，代码来源:attr.c

示例15: hfs_setxattr

int hfs_setxattr(struct dentry *dentry, const char *name,
		 const void *value, size_t size, int flags)
{
	struct inode *inode = dentry->d_inode;
	struct hfs_find_data fd;
	hfs_cat_rec rec;
	struct hfs_cat_file *file;
	int res;

	if (!S_ISREG(inode->i_mode) || HFS_IS_RSRC(inode))
		return -EOPNOTSUPP;

	res = hfs_find_init(HFS_SB(inode->i_sb)->cat_tree, &fd);
	if (res)
		return res;
	fd.search_key->cat = HFS_I(inode)->cat_key;
	res = hfs_brec_find(&fd);
	if (res)
		goto out;
	hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
			sizeof(struct hfs_cat_file));
	file = &rec.file;

	if (!strcmp(name, "hfs.type")) {
		if (size == 4)
			memcpy(&file->UsrWds.fdType, value, 4);
		else
			res = -ERANGE;
	} else if (!strcmp(name, "hfs.creator")) {
		if (size == 4)
			memcpy(&file->UsrWds.fdCreator, value, 4);
		else
			res = -ERANGE;
	} else
		res = -EOPNOTSUPP;
	if (!res)
		hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
				sizeof(struct hfs_cat_file));
out:
	hfs_find_exit(&fd);
	return res;
}
开发者ID:0xroot，项目名称:Blackphone-BP1-Kernel，代码行数:42，代码来源:attr.c


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