--- /dev/null
+/*
+ * QNX6 file system, Linux implementation.
+ *
+ * Version : 1.0.0
+ *
+ * History :
+ *
+ * 01-02-2012 by Kai Bankett (chaosman@ontika.net) : first release.
+ * 16-02-2012 pagemap extension by Al Viro
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/highuid.h>
+#include <linux/pagemap.h>
+#include <linux/buffer_head.h>
+#include <linux/writeback.h>
+#include <linux/statfs.h>
+#include <linux/parser.h>
+#include <linux/seq_file.h>
+#include <linux/mount.h>
+#include <linux/crc32.h>
+#include <linux/mpage.h>
+#include "qnx6.h"
+
+static const struct super_operations qnx6_sops;
+
+static void qnx6_put_super(struct super_block *sb);
+static struct inode *qnx6_alloc_inode(struct super_block *sb);
+static void qnx6_destroy_inode(struct inode *inode);
+static int qnx6_remount(struct super_block *sb, int *flags, char *data);
+static int qnx6_statfs(struct dentry *dentry, struct kstatfs *buf);
+static int qnx6_show_options(struct seq_file *seq, struct dentry *root);
+
+static const struct super_operations qnx6_sops = {
+ .alloc_inode = qnx6_alloc_inode,
+ .destroy_inode = qnx6_destroy_inode,
+ .put_super = qnx6_put_super,
+ .statfs = qnx6_statfs,
+ .remount_fs = qnx6_remount,
+ .show_options = qnx6_show_options,
+};
+
+static int qnx6_show_options(struct seq_file *seq, struct dentry *root)
+{
+ struct super_block *sb = root->d_sb;
+ struct qnx6_sb_info *sbi = QNX6_SB(sb);
+
+ if (sbi->s_mount_opt & QNX6_MOUNT_MMI_FS)
+ seq_puts(seq, ",mmi_fs");
+ return 0;
+}
+
+static int qnx6_remount(struct super_block *sb, int *flags, char *data)
+{
+ sync_filesystem(sb);
+ *flags |= MS_RDONLY;
+ return 0;
+}
+
+static unsigned qnx6_get_devblock(struct super_block *sb, __fs32 block)
+{
+ struct qnx6_sb_info *sbi = QNX6_SB(sb);
+ return fs32_to_cpu(sbi, block) + sbi->s_blks_off;
+}
+
+static unsigned qnx6_block_map(struct inode *inode, unsigned iblock);
+
+static int qnx6_get_block(struct inode *inode, sector_t iblock,
+ struct buffer_head *bh, int create)
+{
+ unsigned phys;
+
+ pr_debug("qnx6_get_block inode=[%ld] iblock=[%ld]\n",
+ inode->i_ino, (unsigned long)iblock);
+
+ phys = qnx6_block_map(inode, iblock);
+ if (phys) {
+ /* logical block is before EOF */
+ map_bh(bh, inode->i_sb, phys);
+ }
+ return 0;
+}
+
+static int qnx6_check_blockptr(__fs32 ptr)
+{
+ if (ptr == ~(__fs32)0) {
+ pr_err("hit unused blockpointer.\n");
+ return 0;
+ }
+ return 1;
+}
+
+static int qnx6_readpage(struct file *file, struct page *page)
+{
+ return mpage_readpage(page, qnx6_get_block);
+}
+
+static int qnx6_readpages(struct file *file, struct address_space *mapping,
+ struct list_head *pages, unsigned nr_pages)
+{
+ return mpage_readpages(mapping, pages, nr_pages, qnx6_get_block);
+}
+
+/*
+ * returns the block number for the no-th element in the tree
+ * inodebits requred as there are multiple inodes in one inode block
+ */
+static unsigned qnx6_block_map(struct inode *inode, unsigned no)
+{
+ struct super_block *s = inode->i_sb;
+ struct qnx6_sb_info *sbi = QNX6_SB(s);
+ struct qnx6_inode_info *ei = QNX6_I(inode);
+ unsigned block = 0;
+ struct buffer_head *bh;
+ __fs32 ptr;
+ int levelptr;
+ int ptrbits = sbi->s_ptrbits;
+ int bitdelta;
+ u32 mask = (1 << ptrbits) - 1;
+ int depth = ei->di_filelevels;
+ int i;
+
+ bitdelta = ptrbits * depth;
+ levelptr = no >> bitdelta;
+
+ if (levelptr > QNX6_NO_DIRECT_POINTERS - 1) {
+ pr_err("Requested file block number (%u) too big.", no);
+ return 0;
+ }
+
+ block = qnx6_get_devblock(s, ei->di_block_ptr[levelptr]);
+
+ for (i = 0; i < depth; i++) {
+ bh = sb_bread(s, block);
+ if (!bh) {
+ pr_err("Error reading block (%u)\n", block);
+ return 0;
+ }
+ bitdelta -= ptrbits;
+ levelptr = (no >> bitdelta) & mask;
+ ptr = ((__fs32 *)bh->b_data)[levelptr];
+
+ if (!qnx6_check_blockptr(ptr))
+ return 0;
+
+ block = qnx6_get_devblock(s, ptr);
+ brelse(bh);
+ }
+ return block;
+}
+
+static int qnx6_statfs(struct dentry *dentry, struct kstatfs *buf)
+{
+ struct super_block *sb = dentry->d_sb;
+ struct qnx6_sb_info *sbi = QNX6_SB(sb);
+ u64 id = huge_encode_dev(sb->s_bdev->bd_dev);
+
+ buf->f_type = sb->s_magic;
+ buf->f_bsize = sb->s_blocksize;
+ buf->f_blocks = fs32_to_cpu(sbi, sbi->sb->sb_num_blocks);
+ buf->f_bfree = fs32_to_cpu(sbi, sbi->sb->sb_free_blocks);
+ buf->f_files = fs32_to_cpu(sbi, sbi->sb->sb_num_inodes);
+ buf->f_ffree = fs32_to_cpu(sbi, sbi->sb->sb_free_inodes);
+ buf->f_bavail = buf->f_bfree;
+ buf->f_namelen = QNX6_LONG_NAME_MAX;
+ buf->f_fsid.val[0] = (u32)id;
+ buf->f_fsid.val[1] = (u32)(id >> 32);
+
+ return 0;
+}
+
+/*
+ * Check the root directory of the filesystem to make sure
+ * it really _is_ a qnx6 filesystem, and to check the size
+ * of the directory entry.
+ */
+static const char *qnx6_checkroot(struct super_block *s)
+{
+ static char match_root[2][3] = {".\0\0", "..\0"};
+ int i, error = 0;
+ struct qnx6_dir_entry *dir_entry;
+ struct inode *root = d_inode(s->s_root);
+ struct address_space *mapping = root->i_mapping;
+ struct page *page = read_mapping_page(mapping, 0, NULL);
+ if (IS_ERR(page))
+ return "error reading root directory";
+ kmap(page);
+ dir_entry = page_address(page);
+ for (i = 0; i < 2; i++) {
+ /* maximum 3 bytes - due to match_root limitation */
+ if (strncmp(dir_entry[i].de_fname, match_root[i], 3))
+ error = 1;
+ }
+ qnx6_put_page(page);
+ if (error)
+ return "error reading root directory.";
+ return NULL;
+}
+
+#ifdef CONFIG_QNX6FS_DEBUG
+void qnx6_superblock_debug(struct qnx6_super_block *sb, struct super_block *s)
+{
+ struct qnx6_sb_info *sbi = QNX6_SB(s);
+
+ pr_debug("magic: %08x\n", fs32_to_cpu(sbi, sb->sb_magic));
+ pr_debug("checksum: %08x\n", fs32_to_cpu(sbi, sb->sb_checksum));
+ pr_debug("serial: %llx\n", fs64_to_cpu(sbi, sb->sb_serial));
+ pr_debug("flags: %08x\n", fs32_to_cpu(sbi, sb->sb_flags));
+ pr_debug("blocksize: %08x\n", fs32_to_cpu(sbi, sb->sb_blocksize));
+ pr_debug("num_inodes: %08x\n", fs32_to_cpu(sbi, sb->sb_num_inodes));
+ pr_debug("free_inodes: %08x\n", fs32_to_cpu(sbi, sb->sb_free_inodes));
+ pr_debug("num_blocks: %08x\n", fs32_to_cpu(sbi, sb->sb_num_blocks));
+ pr_debug("free_blocks: %08x\n", fs32_to_cpu(sbi, sb->sb_free_blocks));
+ pr_debug("inode_levels: %02x\n", sb->Inode.levels);
+}
+#endif
+
+enum {
+ Opt_mmifs,
+ Opt_err
+};
+
+static const match_table_t tokens = {
+ {Opt_mmifs, "mmi_fs"},
+ {Opt_err, NULL}
+};
+
+static int qnx6_parse_options(char *options, struct super_block *sb)
+{
+ char *p;
+ struct qnx6_sb_info *sbi = QNX6_SB(sb);
+ substring_t args[MAX_OPT_ARGS];
+
+ if (!options)
+ return 1;
+
+ while ((p = strsep(&options, ",")) != NULL) {
+ int token;
+ if (!*p)
+ continue;
+
+ token = match_token(p, tokens, args);
+ switch (token) {
+ case Opt_mmifs:
+ set_opt(sbi->s_mount_opt, MMI_FS);
+ break;
+ default:
+ return 0;
+ }
+ }
+ return 1;
+}
+
+static struct buffer_head *qnx6_check_first_superblock(struct super_block *s,
+ int offset, int silent)
+{
+ struct qnx6_sb_info *sbi = QNX6_SB(s);
+ struct buffer_head *bh;
+ struct qnx6_super_block *sb;
+
+ /* Check the superblock signatures
+ start with the first superblock */
+ bh = sb_bread(s, offset);
+ if (!bh) {
+ pr_err("unable to read the first superblock\n");
+ return NULL;
+ }
+ sb = (struct qnx6_super_block *)bh->b_data;
+ if (fs32_to_cpu(sbi, sb->sb_magic) != QNX6_SUPER_MAGIC) {
+ sbi->s_bytesex = BYTESEX_BE;
+ if (fs32_to_cpu(sbi, sb->sb_magic) == QNX6_SUPER_MAGIC) {
+ /* we got a big endian fs */
+ pr_debug("fs got different endianness.\n");
+ return bh;
+ } else
+ sbi->s_bytesex = BYTESEX_LE;
+ if (!silent) {
+ if (offset == 0) {
+ pr_err("wrong signature (magic) in superblock #1.\n");
+ } else {
+ pr_info("wrong signature (magic) at position (0x%lx) - will try alternative position (0x0000).\n",
+ offset * s->s_blocksize);
+ }
+ }
+ brelse(bh);
+ return NULL;
+ }
+ return bh;
+}
+
+static struct inode *qnx6_private_inode(struct super_block *s,
+ struct qnx6_root_node *p);
+
+static int qnx6_fill_super(struct super_block *s, void *data, int silent)
+{
+ struct buffer_head *bh1 = NULL, *bh2 = NULL;
+ struct qnx6_super_block *sb1 = NULL, *sb2 = NULL;
+ struct qnx6_sb_info *sbi;
+ struct inode *root;
+ const char *errmsg;
+ struct qnx6_sb_info *qs;
+ int ret = -EINVAL;
+ u64 offset;
+ int bootblock_offset = QNX6_BOOTBLOCK_SIZE;
+
+ qs = kzalloc(sizeof(struct qnx6_sb_info), GFP_KERNEL);
+ if (!qs)
+ return -ENOMEM;
+ s->s_fs_info = qs;
+
+ /* Superblock always is 512 Byte long */
+ if (!sb_set_blocksize(s, QNX6_SUPERBLOCK_SIZE)) {
+ pr_err("unable to set blocksize\n");
+ goto outnobh;
+ }
+
+ /* parse the mount-options */
+ if (!qnx6_parse_options((char *) data, s)) {
+ pr_err("invalid mount options.\n");
+ goto outnobh;
+ }
+ if (test_opt(s, MMI_FS)) {
+ sb1 = qnx6_mmi_fill_super(s, silent);
+ if (sb1)
+ goto mmi_success;
+ else
+ goto outnobh;
+ }
+ sbi = QNX6_SB(s);
+ sbi->s_bytesex = BYTESEX_LE;
+ /* Check the superblock signatures
+ start with the first superblock */
+ bh1 = qnx6_check_first_superblock(s,
+ bootblock_offset / QNX6_SUPERBLOCK_SIZE, silent);
+ if (!bh1) {
+ /* try again without bootblock offset */
+ bh1 = qnx6_check_first_superblock(s, 0, silent);
+ if (!bh1) {
+ pr_err("unable to read the first superblock\n");
+ goto outnobh;
+ }
+ /* seems that no bootblock at partition start */
+ bootblock_offset = 0;
+ }
+ sb1 = (struct qnx6_super_block *)bh1->b_data;
+
+#ifdef CONFIG_QNX6FS_DEBUG
+ qnx6_superblock_debug(sb1, s);
+#endif
+
+ /* checksum check - start at byte 8 and end at byte 512 */
+ if (fs32_to_cpu(sbi, sb1->sb_checksum) !=
+ crc32_be(0, (char *)(bh1->b_data + 8), 504)) {
+ pr_err("superblock #1 checksum error\n");
+ goto out;
+ }
+
+ /* set new blocksize */
+ if (!sb_set_blocksize(s, fs32_to_cpu(sbi, sb1->sb_blocksize))) {
+ pr_err("unable to set blocksize\n");
+ goto out;
+ }
+ /* blocksize invalidates bh - pull it back in */
+ brelse(bh1);
+ bh1 = sb_bread(s, bootblock_offset >> s->s_blocksize_bits);
+ if (!bh1)
+ goto outnobh;
+ sb1 = (struct qnx6_super_block *)bh1->b_data;
+
+ /* calculate second superblock blocknumber */
+ offset = fs32_to_cpu(sbi, sb1->sb_num_blocks) +
+ (bootblock_offset >> s->s_blocksize_bits) +
+ (QNX6_SUPERBLOCK_AREA >> s->s_blocksize_bits);
+
+ /* set bootblock offset */
+ sbi->s_blks_off = (bootblock_offset >> s->s_blocksize_bits) +
+ (QNX6_SUPERBLOCK_AREA >> s->s_blocksize_bits);
+
+ /* next the second superblock */
+ bh2 = sb_bread(s, offset);
+ if (!bh2) {
+ pr_err("unable to read the second superblock\n");
+ goto out;
+ }
+ sb2 = (struct qnx6_super_block *)bh2->b_data;
+ if (fs32_to_cpu(sbi, sb2->sb_magic) != QNX6_SUPER_MAGIC) {
+ if (!silent)
+ pr_err("wrong signature (magic) in superblock #2.\n");
+ goto out;
+ }
+
+ /* checksum check - start at byte 8 and end at byte 512 */
+ if (fs32_to_cpu(sbi, sb2->sb_checksum) !=
+ crc32_be(0, (char *)(bh2->b_data + 8), 504)) {
+ pr_err("superblock #2 checksum error\n");
+ goto out;
+ }
+
+ if (fs64_to_cpu(sbi, sb1->sb_serial) >=
+ fs64_to_cpu(sbi, sb2->sb_serial)) {
+ /* superblock #1 active */
+ sbi->sb_buf = bh1;
+ sbi->sb = (struct qnx6_super_block *)bh1->b_data;
+ brelse(bh2);
+ pr_info("superblock #1 active\n");
+ } else {
+ /* superblock #2 active */
+ sbi->sb_buf = bh2;
+ sbi->sb = (struct qnx6_super_block *)bh2->b_data;
+ brelse(bh1);
+ pr_info("superblock #2 active\n");
+ }
+mmi_success:
+ /* sanity check - limit maximum indirect pointer levels */
+ if (sb1->Inode.levels > QNX6_PTR_MAX_LEVELS) {
+ pr_err("too many inode levels (max %i, sb %i)\n",
+ QNX6_PTR_MAX_LEVELS, sb1->Inode.levels);
+ goto out;
+ }
+ if (sb1->Longfile.levels > QNX6_PTR_MAX_LEVELS) {
+ pr_err("too many longfilename levels (max %i, sb %i)\n",
+ QNX6_PTR_MAX_LEVELS, sb1->Longfile.levels);
+ goto out;
+ }
+ s->s_op = &qnx6_sops;
+ s->s_magic = QNX6_SUPER_MAGIC;
+ s->s_flags |= MS_RDONLY; /* Yup, read-only yet */
+
+ /* ease the later tree level calculations */
+ sbi = QNX6_SB(s);
+ sbi->s_ptrbits = ilog2(s->s_blocksize / 4);
+ sbi->inodes = qnx6_private_inode(s, &sb1->Inode);
+ if (!sbi->inodes)
+ goto out;
+ sbi->longfile = qnx6_private_inode(s, &sb1->Longfile);
+ if (!sbi->longfile)
+ goto out1;
+
+ /* prefetch root inode */
+ root = qnx6_iget(s, QNX6_ROOT_INO);
+ if (IS_ERR(root)) {
+ pr_err("get inode failed\n");
+ ret = PTR_ERR(root);
+ goto out2;
+ }
+
+ ret = -ENOMEM;
+ s->s_root = d_make_root(root);
+ if (!s->s_root)
+ goto out2;
+
+ ret = -EINVAL;
+ errmsg = qnx6_checkroot(s);
+ if (errmsg != NULL) {
+ if (!silent)
+ pr_err("%s\n", errmsg);
+ goto out3;
+ }
+ return 0;
+
+out3:
+ dput(s->s_root);
+ s->s_root = NULL;
+out2:
+ iput(sbi->longfile);
+out1:
+ iput(sbi->inodes);
+out:
+ if (bh1)
+ brelse(bh1);
+ if (bh2)
+ brelse(bh2);
+outnobh:
+ kfree(qs);
+ s->s_fs_info = NULL;
+ return ret;
+}
+
+static void qnx6_put_super(struct super_block *sb)
+{
+ struct qnx6_sb_info *qs = QNX6_SB(sb);
+ brelse(qs->sb_buf);
+ iput(qs->longfile);
+ iput(qs->inodes);
+ kfree(qs);
+ sb->s_fs_info = NULL;
+ return;
+}
+
+static sector_t qnx6_bmap(struct address_space *mapping, sector_t block)
+{
+ return generic_block_bmap(mapping, block, qnx6_get_block);
+}
+static const struct address_space_operations qnx6_aops = {
+ .readpage = qnx6_readpage,
+ .readpages = qnx6_readpages,
+ .bmap = qnx6_bmap
+};
+
+static struct inode *qnx6_private_inode(struct super_block *s,
+ struct qnx6_root_node *p)
+{
+ struct inode *inode = new_inode(s);
+ if (inode) {
+ struct qnx6_inode_info *ei = QNX6_I(inode);
+ struct qnx6_sb_info *sbi = QNX6_SB(s);
+ inode->i_size = fs64_to_cpu(sbi, p->size);
+ memcpy(ei->di_block_ptr, p->ptr, sizeof(p->ptr));
+ ei->di_filelevels = p->levels;
+ inode->i_mode = S_IFREG | S_IRUSR; /* probably wrong */
+ inode->i_mapping->a_ops = &qnx6_aops;
+ }
+ return inode;
+}
+
+struct inode *qnx6_iget(struct super_block *sb, unsigned ino)
+{
+ struct qnx6_sb_info *sbi = QNX6_SB(sb);
+ struct qnx6_inode_entry *raw_inode;
+ struct inode *inode;
+ struct qnx6_inode_info *ei;
+ struct address_space *mapping;
+ struct page *page;
+ u32 n, offs;
+
+ inode = iget_locked(sb, ino);
+ if (!inode)
+ return ERR_PTR(-ENOMEM);
+ if (!(inode->i_state & I_NEW))
+ return inode;
+
+ ei = QNX6_I(inode);
+
+ inode->i_mode = 0;
+
+ if (ino == 0) {
+ pr_err("bad inode number on dev %s: %u is out of range\n",
+ sb->s_id, ino);
+ iget_failed(inode);
+ return ERR_PTR(-EIO);
+ }
+ n = (ino - 1) >> (PAGE_CACHE_SHIFT - QNX6_INODE_SIZE_BITS);
+ offs = (ino - 1) & (~PAGE_CACHE_MASK >> QNX6_INODE_SIZE_BITS);
+ mapping = sbi->inodes->i_mapping;
+ page = read_mapping_page(mapping, n, NULL);
+ if (IS_ERR(page)) {
+ pr_err("major problem: unable to read inode from dev %s\n",
+ sb->s_id);
+ iget_failed(inode);
+ return ERR_CAST(page);
+ }
+ kmap(page);
+ raw_inode = ((struct qnx6_inode_entry *)page_address(page)) + offs;
+
+ inode->i_mode = fs16_to_cpu(sbi, raw_inode->di_mode);
+ i_uid_write(inode, (uid_t)fs32_to_cpu(sbi, raw_inode->di_uid));
+ i_gid_write(inode, (gid_t)fs32_to_cpu(sbi, raw_inode->di_gid));
+ inode->i_size = fs64_to_cpu(sbi, raw_inode->di_size);
+ inode->i_mtime.tv_sec = fs32_to_cpu(sbi, raw_inode->di_mtime);
+ inode->i_mtime.tv_nsec = 0;
+ inode->i_atime.tv_sec = fs32_to_cpu(sbi, raw_inode->di_atime);
+ inode->i_atime.tv_nsec = 0;
+ inode->i_ctime.tv_sec = fs32_to_cpu(sbi, raw_inode->di_ctime);
+ inode->i_ctime.tv_nsec = 0;
+
+ /* calc blocks based on 512 byte blocksize */
+ inode->i_blocks = (inode->i_size + 511) >> 9;
+
+ memcpy(&ei->di_block_ptr, &raw_inode->di_block_ptr,
+ sizeof(raw_inode->di_block_ptr));
+ ei->di_filelevels = raw_inode->di_filelevels;
+
+ if (S_ISREG(inode->i_mode)) {
+ inode->i_fop = &generic_ro_fops;
+ inode->i_mapping->a_ops = &qnx6_aops;
+ } else if (S_ISDIR(inode->i_mode)) {
+ inode->i_op = &qnx6_dir_inode_operations;
+ inode->i_fop = &qnx6_dir_operations;
+ inode->i_mapping->a_ops = &qnx6_aops;
+ } else if (S_ISLNK(inode->i_mode)) {
+ inode->i_op = &page_symlink_inode_operations;
+ inode->i_mapping->a_ops = &qnx6_aops;
+ } else
+ init_special_inode(inode, inode->i_mode, 0);
+ qnx6_put_page(page);
+ unlock_new_inode(inode);
+ return inode;
+}
+
+static struct kmem_cache *qnx6_inode_cachep;
+
+static struct inode *qnx6_alloc_inode(struct super_block *sb)
+{
+ struct qnx6_inode_info *ei;
+ ei = kmem_cache_alloc(qnx6_inode_cachep, GFP_KERNEL);
+ if (!ei)
+ return NULL;
+ return &ei->vfs_inode;
+}
+
+static void qnx6_i_callback(struct rcu_head *head)
+{
+ struct inode *inode = container_of(head, struct inode, i_rcu);
+ kmem_cache_free(qnx6_inode_cachep, QNX6_I(inode));
+}
+
+static void qnx6_destroy_inode(struct inode *inode)
+{
+ call_rcu(&inode->i_rcu, qnx6_i_callback);
+}
+
+static void init_once(void *foo)
+{
+ struct qnx6_inode_info *ei = (struct qnx6_inode_info *) foo;
+
+ inode_init_once(&ei->vfs_inode);
+}
+
+static int init_inodecache(void)
+{
+ qnx6_inode_cachep = kmem_cache_create("qnx6_inode_cache",
+ sizeof(struct qnx6_inode_info),
+ 0, (SLAB_RECLAIM_ACCOUNT|
+ SLAB_MEM_SPREAD),
+ init_once);
+ if (!qnx6_inode_cachep)
+ return -ENOMEM;
+ return 0;
+}
+
+static void destroy_inodecache(void)
+{
+ /*
+ * Make sure all delayed rcu free inodes are flushed before we
+ * destroy cache.
+ */
+ rcu_barrier();
+ kmem_cache_destroy(qnx6_inode_cachep);
+}
+
+static struct dentry *qnx6_mount(struct file_system_type *fs_type,
+ int flags, const char *dev_name, void *data)
+{
+ return mount_bdev(fs_type, flags, dev_name, data, qnx6_fill_super);
+}
+
+static struct file_system_type qnx6_fs_type = {
+ .owner = THIS_MODULE,
+ .name = "qnx6",
+ .mount = qnx6_mount,
+ .kill_sb = kill_block_super,
+ .fs_flags = FS_REQUIRES_DEV,
+};
+MODULE_ALIAS_FS("qnx6");
+
+static int __init init_qnx6_fs(void)
+{
+ int err;
+
+ err = init_inodecache();
+ if (err)
+ return err;
+
+ err = register_filesystem(&qnx6_fs_type);
+ if (err) {
+ destroy_inodecache();
+ return err;
+ }
+
+ pr_info("QNX6 filesystem 1.0.0 registered.\n");
+ return 0;
+}
+
+static void __exit exit_qnx6_fs(void)
+{
+ unregister_filesystem(&qnx6_fs_type);
+ destroy_inodecache();
+}
+
+module_init(init_qnx6_fs)
+module_exit(exit_qnx6_fs)
+MODULE_LICENSE("GPL");
Code Review / kvmfornfv.git / blobdiff