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Commit b5080f77 authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Christoph Hellwig
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hfsplus: clean up hfsplus_write_inode 



Add a new hfsplus_system_write_inode for writing the special system inodes
and streamline the fastpath write_inode code.

Signed-off-by: default avatarChristoph Hellwig <hch@tuxera.com>
parent fc4fff82

fs/hfsplus/super.c

+37 −43
Original line number Diff line number Diff line
@@ -89,63 +89,57 @@ struct inode *hfsplus_iget(struct super_block *sb, unsigned long ino) 
	return inode;

}



static int hfsplus_write_inode(struct inode *inode,

		struct writeback_control *wbc)

static int hfsplus_system_write_inode(struct inode *inode)

{

	struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb);

	struct hfsplus_vh *vhdr;

	int ret = 0;

	struct hfsplus_vh *vhdr = sbi->s_vhdr;

	struct hfsplus_fork_raw *fork;

	struct hfs_btree *tree = NULL;



	dprint(DBG_INODE, "hfsplus_write_inode: %lu\n", inode->i_ino);

	hfsplus_ext_write_extent(inode);

	if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID) {

		return hfsplus_cat_write_inode(inode);

	}

	vhdr = sbi->s_vhdr;

	switch (inode->i_ino) {

	case HFSPLUS_ROOT_CNID:

		ret = hfsplus_cat_write_inode(inode);

		break;

	case HFSPLUS_EXT_CNID:

		if (vhdr->ext_file.total_size != cpu_to_be64(inode->i_size)) {

			sbi->flags |= HFSPLUS_SB_WRITEBACKUP;

			inode->i_sb->s_dirt = 1;

		}

		hfsplus_inode_write_fork(inode, &vhdr->ext_file);

		hfs_btree_write(sbi->ext_tree);

		fork = &vhdr->ext_file;

		tree = sbi->ext_tree;

		break;

	case HFSPLUS_CAT_CNID:

		if (vhdr->cat_file.total_size != cpu_to_be64(inode->i_size)) {

			sbi->flags |= HFSPLUS_SB_WRITEBACKUP;

			inode->i_sb->s_dirt = 1;

		}

		hfsplus_inode_write_fork(inode, &vhdr->cat_file);

		hfs_btree_write(sbi->cat_tree);

		fork = &vhdr->cat_file;

		tree = sbi->cat_tree;

		break;

	case HFSPLUS_ALLOC_CNID:

		if (vhdr->alloc_file.total_size != cpu_to_be64(inode->i_size)) {

			sbi->flags |= HFSPLUS_SB_WRITEBACKUP;

			inode->i_sb->s_dirt = 1;

		}

		hfsplus_inode_write_fork(inode, &vhdr->alloc_file);

		fork = &vhdr->alloc_file;

		break;

	case HFSPLUS_START_CNID:

		if (vhdr->start_file.total_size != cpu_to_be64(inode->i_size)) {

			sbi->flags |= HFSPLUS_SB_WRITEBACKUP;

			inode->i_sb->s_dirt = 1;

		}

		hfsplus_inode_write_fork(inode, &vhdr->start_file);

		fork = &vhdr->start_file;

		break;

	case HFSPLUS_ATTR_CNID:

		if (vhdr->attr_file.total_size != cpu_to_be64(inode->i_size)) {

		fork = &vhdr->attr_file;

		tree = sbi->attr_tree;

	default:

		return -EIO;

	}



	if (fork->total_size != cpu_to_be64(inode->i_size)) {

		sbi->flags |= HFSPLUS_SB_WRITEBACKUP;

		inode->i_sb->s_dirt = 1;

	}

		hfsplus_inode_write_fork(inode, &vhdr->attr_file);

		hfs_btree_write(sbi->attr_tree);

		break;

	hfsplus_inode_write_fork(inode, fork);

	if (tree)

		hfs_btree_write(tree);

	return 0;

}

	return ret;



static int hfsplus_write_inode(struct inode *inode,

		struct writeback_control *wbc)

{

	dprint(DBG_INODE, "hfsplus_write_inode: %lu\n", inode->i_ino);



	hfsplus_ext_write_extent(inode);



	if (inode->i_ino >= HFSPLUS_FIRSTUSER_CNID ||

	    inode->i_ino == HFSPLUS_ROOT_CNID)

		return hfsplus_cat_write_inode(inode);

	else

		return hfsplus_system_write_inode(inode);

}



static void hfsplus_evict_inode(struct inode *inode)