Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 636 insertions, 0 deletions

diff --git a/fs/hfs/inode.c b/fs/hfs/inode.c
new file mode 100644
index 00000000000..75191232609
--- /dev/null
+++ b/fs/hfs/inode.c
@@ -0,0 +1,636 @@
+/*
+ *  linux/fs/hfs/inode.c
+ *
+ * Copyright (C) 1995-1997  Paul H. Hargrove
+ * (C) 2003 Ardis Technologies <roman@ardistech.com>
+ * This file may be distributed under the terms of the GNU General Public License.
+ *
+ * This file contains inode-related functions which do not depend on
+ * which scheme is being used to represent forks.
+ *
+ * Based on the minix file system code, (C) 1991, 1992 by Linus Torvalds
+ */
+
+#include <linux/pagemap.h>
+#include <linux/version.h>
+#include <linux/mpage.h>
+
+#include "hfs_fs.h"
+#include "btree.h"
+
+static struct file_operations hfs_file_operations;
+static struct inode_operations hfs_file_inode_operations;
+
+/*================ Variable-like macros ================*/
+
+#define HFS_VALID_MODE_BITS  (S_IFREG | S_IFDIR | S_IRWXUGO)
+
+static int hfs_writepage(struct page *page, struct writeback_control *wbc)
+{
+        return block_write_full_page(page, hfs_get_block, wbc);
+}
+
+static int hfs_readpage(struct file *file, struct page *page)
+{
+        return block_read_full_page(page, hfs_get_block);
+}
+
+static int hfs_prepare_write(struct file *file, struct page *page, unsigned from, unsigned to)
+{
+        return cont_prepare_write(page, from, to, hfs_get_block,
+                                  &HFS_I(page->mapping->host)->phys_size);
+}
+
+static sector_t hfs_bmap(struct address_space *mapping, sector_t block)
+{
+        return generic_block_bmap(mapping, block, hfs_get_block);
+}
+
+static 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;
+                if (res && node) {
+                        hfs_bnode_unhash(node);
+                        hfs_bnode_free(node);
+                }
+                spin_unlock(&tree->hash_lock);
+        } else {
+                nidx = page->index << (PAGE_CACHE_SHIFT - tree->node_size_shift);
+                i = 1 << (PAGE_CACHE_SHIFT - tree->node_size_shift);
+                spin_lock(&tree->hash_lock);
+                do {
+                        node = hfs_bnode_findhash(tree, nidx++);
+                        if (!node)
+                                continue;
+                        if (atomic_read(&node->refcnt)) {
+                                res = 0;
+                                break;
+                        }
+                        hfs_bnode_unhash(node);
+                        hfs_bnode_free(node);
+                } while (--i && nidx < tree->node_count);
+                spin_unlock(&tree->hash_lock);
+        }
+        //printk("releasepage: %lu,%x = %d\n", page->index, mask, res);
+        return res ? try_to_free_buffers(page) : 0;
+}
+
+static int hfs_get_blocks(struct inode *inode, sector_t iblock, unsigned long max_blocks,
+                          struct buffer_head *bh_result, int create)
+{
+        int ret;
+
+        ret = hfs_get_block(inode, iblock, bh_result, create);
+        if (!ret)
+                bh_result->b_size = (1 << inode->i_blkbits);
+        return ret;
+}
+
+static ssize_t hfs_direct_IO(int rw, struct kiocb *iocb,
+                const struct iovec *iov, loff_t offset, unsigned long nr_segs)
+{
+        struct file *file = iocb->ki_filp;
+        struct inode *inode = file->f_dentry->d_inode->i_mapping->host;
+
+        return blockdev_direct_IO(rw, iocb, inode, inode->i_sb->s_bdev, iov,
+                                  offset, nr_segs, hfs_get_blocks, NULL);
+}
+
+static int hfs_writepages(struct address_space *mapping,
+                          struct writeback_control *wbc)
+{
+        return mpage_writepages(mapping, wbc, hfs_get_block);
+}
+
+struct address_space_operations hfs_btree_aops = {
+        .readpage       = hfs_readpage,
+        .writepage      = hfs_writepage,
+        .sync_page      = block_sync_page,
+        .prepare_write  = hfs_prepare_write,
+        .commit_write   = generic_commit_write,
+        .bmap           = hfs_bmap,
+        .releasepage    = hfs_releasepage,
+};
+
+struct address_space_operations hfs_aops = {
+        .readpage       = hfs_readpage,
+        .writepage      = hfs_writepage,
+        .sync_page      = block_sync_page,
+        .prepare_write  = hfs_prepare_write,
+        .commit_write   = generic_commit_write,
+        .bmap           = hfs_bmap,
+        .direct_IO      = hfs_direct_IO,
+        .writepages     = hfs_writepages,
+};
+
+/*
+ * hfs_new_inode
+ */
+struct inode *hfs_new_inode(struct inode *dir, struct qstr *name, int mode)
+{
+        struct super_block *sb = dir->i_sb;
+        struct inode *inode = new_inode(sb);
+        if (!inode)
+                return NULL;
+
+        init_MUTEX(&HFS_I(inode)->extents_lock);
+        INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
+        hfs_cat_build_key((btree_key *)&HFS_I(inode)->cat_key, dir->i_ino, name);
+        inode->i_ino = HFS_SB(sb)->next_id++;
+        inode->i_mode = mode;
+        inode->i_uid = current->fsuid;
+        inode->i_gid = current->fsgid;
+        inode->i_nlink = 1;
+        inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME_SEC;
+        inode->i_blksize = HFS_SB(sb)->alloc_blksz;
+        HFS_I(inode)->flags = 0;
+        HFS_I(inode)->rsrc_inode = NULL;
+        HFS_I(inode)->fs_blocks = 0;
+        if (S_ISDIR(mode)) {
+                inode->i_size = 2;
+                HFS_SB(sb)->folder_count++;
+                if (dir->i_ino == HFS_ROOT_CNID)
+                        HFS_SB(sb)->root_dirs++;
+                inode->i_op = &hfs_dir_inode_operations;
+                inode->i_fop = &hfs_dir_operations;
+                inode->i_mode |= S_IRWXUGO;
+                inode->i_mode &= ~HFS_SB(inode->i_sb)->s_dir_umask;
+        } else if (S_ISREG(mode)) {
+                HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
+                HFS_SB(sb)->file_count++;
+                if (dir->i_ino == HFS_ROOT_CNID)
+                        HFS_SB(sb)->root_files++;
+                inode->i_op = &hfs_file_inode_operations;
+                inode->i_fop = &hfs_file_operations;
+                inode->i_mapping->a_ops = &hfs_aops;
+                inode->i_mode |= S_IRUGO|S_IXUGO;
+                if (mode & S_IWUSR)
+                        inode->i_mode |= S_IWUGO;
+                inode->i_mode &= ~HFS_SB(inode->i_sb)->s_file_umask;
+                HFS_I(inode)->phys_size = 0;
+                HFS_I(inode)->alloc_blocks = 0;
+                HFS_I(inode)->first_blocks = 0;
+                HFS_I(inode)->cached_start = 0;
+                HFS_I(inode)->cached_blocks = 0;
+                memset(HFS_I(inode)->first_extents, 0, sizeof(hfs_extent_rec));
+                memset(HFS_I(inode)->cached_extents, 0, sizeof(hfs_extent_rec));
+        }
+        insert_inode_hash(inode);
+        mark_inode_dirty(inode);
+        set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
+        sb->s_dirt = 1;
+
+        return inode;
+}
+
+void hfs_delete_inode(struct inode *inode)
+{
+        struct super_block *sb = inode->i_sb;
+
+        dprint(DBG_INODE, "delete_inode: %lu\n", inode->i_ino);
+        if (S_ISDIR(inode->i_mode)) {
+                HFS_SB(sb)->folder_count--;
+                if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
+                        HFS_SB(sb)->root_dirs--;
+                set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
+                sb->s_dirt = 1;
+                return;
+        }
+        HFS_SB(sb)->file_count--;
+        if (HFS_I(inode)->cat_key.ParID == cpu_to_be32(HFS_ROOT_CNID))
+                HFS_SB(sb)->root_files--;
+        if (S_ISREG(inode->i_mode)) {
+                if (!inode->i_nlink) {
+                        inode->i_size = 0;
+                        hfs_file_truncate(inode);
+                }
+        }
+        set_bit(HFS_FLG_MDB_DIRTY, &HFS_SB(sb)->flags);
+        sb->s_dirt = 1;
+}
+
+void hfs_inode_read_fork(struct inode *inode, struct hfs_extent *ext,
+                         __be32 __log_size, __be32 phys_size, u32 clump_size)
+{
+        struct super_block *sb = inode->i_sb;
+        u32 log_size = be32_to_cpu(__log_size);
+        u16 count;
+        int i;
+
+        memcpy(HFS_I(inode)->first_extents, ext, sizeof(hfs_extent_rec));
+        for (count = 0, i = 0; i < 3; i++)
+                count += be16_to_cpu(ext[i].count);
+        HFS_I(inode)->first_blocks = count;
+
+        inode->i_size = HFS_I(inode)->phys_size = log_size;
+        HFS_I(inode)->fs_blocks = (log_size + sb->s_blocksize - 1) >> sb->s_blocksize_bits;
+        inode_set_bytes(inode, HFS_I(inode)->fs_blocks << sb->s_blocksize_bits);
+        HFS_I(inode)->alloc_blocks = be32_to_cpu(phys_size) /
+                                     HFS_SB(sb)->alloc_blksz;
+        HFS_I(inode)->clump_blocks = clump_size / HFS_SB(sb)->alloc_blksz;
+        if (!HFS_I(inode)->clump_blocks)
+                HFS_I(inode)->clump_blocks = HFS_SB(sb)->clumpablks;
+}
+
+struct hfs_iget_data {
+        struct hfs_cat_key *key;
+        hfs_cat_rec *rec;
+};
+
+static int hfs_test_inode(struct inode *inode, void *data)
+{
+        struct hfs_iget_data *idata = data;
+        hfs_cat_rec *rec;
+
+        rec = idata->rec;
+        switch (rec->type) {
+        case HFS_CDR_DIR:
+                return inode->i_ino == be32_to_cpu(rec->dir.DirID);
+        case HFS_CDR_FIL:
+                return inode->i_ino == be32_to_cpu(rec->file.FlNum);
+        default:
+                BUG();
+                return 1;
+        }
+}
+
+/*
+ * hfs_read_inode
+ */
+static int hfs_read_inode(struct inode *inode, void *data)
+{
+        struct hfs_iget_data *idata = data;
+        struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
+        hfs_cat_rec *rec;
+
+        HFS_I(inode)->flags = 0;
+        HFS_I(inode)->rsrc_inode = NULL;
+        init_MUTEX(&HFS_I(inode)->extents_lock);
+        INIT_LIST_HEAD(&HFS_I(inode)->open_dir_list);
+
+        /* Initialize the inode */
+        inode->i_uid = hsb->s_uid;
+        inode->i_gid = hsb->s_gid;
+        inode->i_nlink = 1;
+        inode->i_blksize = HFS_SB(inode->i_sb)->alloc_blksz;
+
+        if (idata->key)
+                HFS_I(inode)->cat_key = *idata->key;
+        else
+                HFS_I(inode)->flags |= HFS_FLG_RSRC;
+        HFS_I(inode)->tz_secondswest = sys_tz.tz_minuteswest * 60;
+
+        rec = idata->rec;
+        switch (rec->type) {
+        case HFS_CDR_FIL:
+                if (!HFS_IS_RSRC(inode)) {
+                        hfs_inode_read_fork(inode, rec->file.ExtRec, rec->file.LgLen,
+                                            rec->file.PyLen, be16_to_cpu(rec->file.ClpSize));
+                } else {
+                        hfs_inode_read_fork(inode, rec->file.RExtRec, rec->file.RLgLen,
+                                            rec->file.RPyLen, be16_to_cpu(rec->file.ClpSize));
+                }
+
+                inode->i_ino = be32_to_cpu(rec->file.FlNum);
+                inode->i_mode = S_IRUGO | S_IXUGO;
+                if (!(rec->file.Flags & HFS_FIL_LOCK))
+                        inode->i_mode |= S_IWUGO;
+                inode->i_mode &= ~hsb->s_file_umask;
+                inode->i_mode |= S_IFREG;
+                inode->i_ctime = inode->i_atime = inode->i_mtime =
+                                hfs_m_to_utime(rec->file.MdDat);
+                inode->i_op = &hfs_file_inode_operations;
+                inode->i_fop = &hfs_file_operations;
+                inode->i_mapping->a_ops = &hfs_aops;
+                break;
+        case HFS_CDR_DIR:
+                inode->i_ino = be32_to_cpu(rec->dir.DirID);
+                inode->i_size = be16_to_cpu(rec->dir.Val) + 2;
+                HFS_I(inode)->fs_blocks = 0;
+                inode->i_mode = S_IFDIR | (S_IRWXUGO & ~hsb->s_dir_umask);
+                inode->i_ctime = inode->i_atime = inode->i_mtime =
+                                hfs_m_to_utime(rec->dir.MdDat);
+                inode->i_op = &hfs_dir_inode_operations;
+                inode->i_fop = &hfs_dir_operations;
+                break;
+        default:
+                make_bad_inode(inode);
+        }
+        return 0;
+}
+
+/*
+ * __hfs_iget()
+ *
+ * Given the MDB for a HFS filesystem, a 'key' and an 'entry' in
+ * the catalog B-tree and the 'type' of the desired file return the
+ * inode for that file/directory or NULL.  Note that 'type' indicates
+ * whether we want the actual file or directory, or the corresponding
+ * metadata (AppleDouble header file or CAP metadata file).
+ */
+struct inode *hfs_iget(struct super_block *sb, struct hfs_cat_key *key, hfs_cat_rec *rec)
+{
+        struct hfs_iget_data data = { key, rec };
+        struct inode *inode;
+        u32 cnid;
+
+        switch (rec->type) {
+        case HFS_CDR_DIR:
+                cnid = be32_to_cpu(rec->dir.DirID);
+                break;
+        case HFS_CDR_FIL:
+                cnid = be32_to_cpu(rec->file.FlNum);
+                break;
+        default:
+                return NULL;
+        }
+        inode = iget5_locked(sb, cnid, hfs_test_inode, hfs_read_inode, &data);
+        if (inode && (inode->i_state & I_NEW))
+                unlock_new_inode(inode);
+        return inode;
+}
+
+void hfs_inode_write_fork(struct inode *inode, struct hfs_extent *ext,
+                          __be32 *log_size, __be32 *phys_size)
+{
+        memcpy(ext, HFS_I(inode)->first_extents, sizeof(hfs_extent_rec));
+
+        if (log_size)
+                *log_size = cpu_to_be32(inode->i_size);
+        if (phys_size)
+                *phys_size = cpu_to_be32(HFS_I(inode)->alloc_blocks *
+                                         HFS_SB(inode->i_sb)->alloc_blksz);
+}
+
+int hfs_write_inode(struct inode *inode, int unused)
+{
+        struct inode *main_inode = inode;
+        struct hfs_find_data fd;
+        hfs_cat_rec rec;
+
+        dprint(DBG_INODE, "hfs_write_inode: %lu\n", inode->i_ino);
+        hfs_ext_write_extent(inode);
+
+        if (inode->i_ino < HFS_FIRSTUSER_CNID) {
+                switch (inode->i_ino) {
+                case HFS_ROOT_CNID:
+                        break;
+                case HFS_EXT_CNID:
+                        hfs_btree_write(HFS_SB(inode->i_sb)->ext_tree);
+                        return 0;
+                case HFS_CAT_CNID:
+                        hfs_btree_write(HFS_SB(inode->i_sb)->cat_tree);
+                        return 0;
+                default:
+                        BUG();
+                        return -EIO;
+                }
+        }
+
+        if (HFS_IS_RSRC(inode))
+                main_inode = HFS_I(inode)->rsrc_inode;
+
+        if (!main_inode->i_nlink)
+                return 0;
+
+        if (hfs_find_init(HFS_SB(main_inode->i_sb)->cat_tree, &fd))
+                /* panic? */
+                return -EIO;
+
+        fd.search_key->cat = HFS_I(main_inode)->cat_key;
+        if (hfs_brec_find(&fd))
+                /* panic? */
+                goto out;
+
+        if (S_ISDIR(main_inode->i_mode)) {
+                if (fd.entrylength < sizeof(struct hfs_cat_dir))
+                        /* panic? */;
+                hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
+                           sizeof(struct hfs_cat_dir));
+                if (rec.type != HFS_CDR_DIR ||
+                    be32_to_cpu(rec.dir.DirID) != inode->i_ino) {
+                }
+
+                rec.dir.MdDat = hfs_u_to_mtime(inode->i_mtime);
+                rec.dir.Val = cpu_to_be16(inode->i_size - 2);
+
+                hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
+                            sizeof(struct hfs_cat_dir));
+        } else if (HFS_IS_RSRC(inode)) {
+                hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
+                               sizeof(struct hfs_cat_file));
+                hfs_inode_write_fork(inode, rec.file.RExtRec,
+                                     &rec.file.RLgLen, &rec.file.RPyLen);
+                hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
+                                sizeof(struct hfs_cat_file));
+        } else {
+                if (fd.entrylength < sizeof(struct hfs_cat_file))
+                        /* panic? */;
+                hfs_bnode_read(fd.bnode, &rec, fd.entryoffset,
+                           sizeof(struct hfs_cat_file));
+                if (rec.type != HFS_CDR_FIL ||
+                    be32_to_cpu(rec.file.FlNum) != inode->i_ino) {
+                }
+
+                if (inode->i_mode & S_IWUSR)
+                        rec.file.Flags &= ~HFS_FIL_LOCK;
+                else
+                        rec.file.Flags |= HFS_FIL_LOCK;
+                hfs_inode_write_fork(inode, rec.file.ExtRec, &rec.file.LgLen, &rec.file.PyLen);
+                rec.file.MdDat = hfs_u_to_mtime(inode->i_mtime);
+
+                hfs_bnode_write(fd.bnode, &rec, fd.entryoffset,
+                            sizeof(struct hfs_cat_file));
+        }
+out:
+        hfs_find_exit(&fd);
+        return 0;
+}
+
+static struct dentry *hfs_file_lookup(struct inode *dir, struct dentry *dentry,
+                                      struct nameidata *nd)
+{
+        struct inode *inode = NULL;
+        hfs_cat_rec rec;
+        struct hfs_find_data fd;
+        int res;
+
+        if (HFS_IS_RSRC(dir) || strcmp(dentry->d_name.name, "rsrc"))
+                goto out;
+
+        inode = HFS_I(dir)->rsrc_inode;
+        if (inode)
+                goto out;
+
+        inode = new_inode(dir->i_sb);
+        if (!inode)
+                return ERR_PTR(-ENOMEM);
+
+        hfs_find_init(HFS_SB(dir->i_sb)->cat_tree, &fd);
+        fd.search_key->cat = HFS_I(dir)->cat_key;
+        res = hfs_brec_read(&fd, &rec, sizeof(rec));
+        if (!res) {
+                struct hfs_iget_data idata = { NULL, &rec };
+                hfs_read_inode(inode, &idata);
+        }
+        hfs_find_exit(&fd);
+        if (res) {
+                iput(inode);
+                return ERR_PTR(res);
+        }
+        HFS_I(inode)->rsrc_inode = dir;
+        HFS_I(dir)->rsrc_inode = inode;
+        igrab(dir);
+        hlist_add_head(&inode->i_hash, &HFS_SB(dir->i_sb)->rsrc_inodes);
+        mark_inode_dirty(inode);
+out:
+        d_add(dentry, inode);
+        return NULL;
+}
+
+void hfs_clear_inode(struct inode *inode)
+{
+        if (HFS_IS_RSRC(inode) && HFS_I(inode)->rsrc_inode) {
+                HFS_I(HFS_I(inode)->rsrc_inode)->rsrc_inode = NULL;
+                iput(HFS_I(inode)->rsrc_inode);
+        }
+}
+
+static int hfs_permission(struct inode *inode, int mask,
+                          struct nameidata *nd)
+{
+        if (S_ISREG(inode->i_mode) && mask & MAY_EXEC)
+                return 0;
+        return generic_permission(inode, mask, NULL);
+}
+
+static int hfs_file_open(struct inode *inode, struct file *file)
+{
+        if (HFS_IS_RSRC(inode))
+                inode = HFS_I(inode)->rsrc_inode;
+        if (atomic_read(&file->f_count) != 1)
+                return 0;
+        atomic_inc(&HFS_I(inode)->opencnt);
+        return 0;
+}
+
+static int hfs_file_release(struct inode *inode, struct file *file)
+{
+        //struct super_block *sb = inode->i_sb;
+
+        if (HFS_IS_RSRC(inode))
+                inode = HFS_I(inode)->rsrc_inode;
+        if (atomic_read(&file->f_count) != 0)
+                return 0;
+        if (atomic_dec_and_test(&HFS_I(inode)->opencnt)) {
+                down(&inode->i_sem);
+                hfs_file_truncate(inode);
+                //if (inode->i_flags & S_DEAD) {
+                //      hfs_delete_cat(inode->i_ino, HFSPLUS_SB(sb).hidden_dir, NULL);
+                //      hfs_delete_inode(inode);
+                //}
+                up(&inode->i_sem);
+        }
+        return 0;
+}
+
+/*
+ * hfs_notify_change()
+ *
+ * Based very closely on fs/msdos/inode.c by Werner Almesberger
+ *
+ * This is the notify_change() field in the super_operations structure
+ * for HFS file systems.  The purpose is to take that changes made to
+ * an inode and apply then in a filesystem-dependent manner.  In this
+ * case the process has a few of tasks to do:
+ *  1) prevent changes to the i_uid and i_gid fields.
+ *  2) map file permissions to the closest allowable permissions
+ *  3) Since multiple Linux files can share the same on-disk inode under
+ *     HFS (for instance the data and resource forks of a file) a change
+ *     to permissions must be applied to all other in-core inodes which
+ *     correspond to the same HFS file.
+ */
+
+int hfs_inode_setattr(struct dentry *dentry, struct iattr * attr)
+{
+        struct inode *inode = dentry->d_inode;
+        struct hfs_sb_info *hsb = HFS_SB(inode->i_sb);
+        int error;
+
+        error = inode_change_ok(inode, attr); /* basic permission checks */
+        if (error)
+                return error;
+
+        /* no uig/gid changes and limit which mode bits can be set */
+        if (((attr->ia_valid & ATTR_UID) &&
+             (attr->ia_uid != hsb->s_uid)) ||
+            ((attr->ia_valid & ATTR_GID) &&
+             (attr->ia_gid != hsb->s_gid)) ||
+            ((attr->ia_valid & ATTR_MODE) &&
+             ((S_ISDIR(inode->i_mode) &&
+               (attr->ia_mode != inode->i_mode)) ||
+              (attr->ia_mode & ~HFS_VALID_MODE_BITS)))) {
+                return hsb->s_quiet ? 0 : error;
+        }
+
+        if (attr->ia_valid & ATTR_MODE) {
+                /* Only the 'w' bits can ever change and only all together. */
+                if (attr->ia_mode & S_IWUSR)
+                        attr->ia_mode = inode->i_mode | S_IWUGO;
+                else
+                        attr->ia_mode = inode->i_mode & ~S_IWUGO;
+                attr->ia_mode &= S_ISDIR(inode->i_mode) ? ~hsb->s_dir_umask: ~hsb->s_file_umask;
+        }
+        error = inode_setattr(inode, attr);
+        if (error)
+                return error;
+
+        return 0;
+}
+
+
+static struct file_operations hfs_file_operations = {
+        .llseek         = generic_file_llseek,
+        .read           = generic_file_read,
+        .write          = generic_file_write,
+        .mmap           = generic_file_mmap,
+        .sendfile       = generic_file_sendfile,
+        .fsync          = file_fsync,
+        .open           = hfs_file_open,
+        .release        = hfs_file_release,
+};
+
+static struct inode_operations hfs_file_inode_operations = {
+        .lookup         = hfs_file_lookup,
+        .truncate       = hfs_file_truncate,
+        .setattr        = hfs_inode_setattr,
+        .permission     = hfs_permission,
+        .setxattr       = hfs_setxattr,
+        .getxattr       = hfs_getxattr,
+        .listxattr      = hfs_listxattr,
+};