diff options
| -rw-r--r-- | fs/cramfs/inode.c | 88 |
1 files changed, 38 insertions, 50 deletions
diff --git a/fs/cramfs/inode.c b/fs/cramfs/inode.c index dd3634e4c967..a53b130b366c 100644 --- a/fs/cramfs/inode.c +++ b/fs/cramfs/inode.c @@ -39,66 +39,55 @@ static DEFINE_MUTEX(read_mutex); #define CRAMINO(x) (((x)->offset && (x)->size)?(x)->offset<<2:1) #define OFFSET(x) ((x)->i_ino) - -static int cramfs_iget5_test(struct inode *inode, void *opaque) -{ - struct cramfs_inode *cramfs_inode = opaque; - return inode->i_ino == CRAMINO(cramfs_inode) && inode->i_ino != 1; -} - -static int cramfs_iget5_set(struct inode *inode, void *opaque) +static void setup_inode(struct inode *inode, struct cramfs_inode * cramfs_inode) { - struct cramfs_inode *cramfs_inode = opaque; - inode->i_ino = CRAMINO(cramfs_inode); - return 0; + static struct timespec zerotime; + inode->i_mode = cramfs_inode->mode; + inode->i_uid = cramfs_inode->uid; + inode->i_size = cramfs_inode->size; + inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1; + inode->i_gid = cramfs_inode->gid; + /* Struct copy intentional */ + inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime; + /* inode->i_nlink is left 1 - arguably wrong for directories, + but it's the best we can do without reading the directory + contents. 1 yields the right result in GNU find, even + without -noleaf option. */ + if (S_ISREG(inode->i_mode)) { + inode->i_fop = &generic_ro_fops; + inode->i_data.a_ops = &cramfs_aops; + } else if (S_ISDIR(inode->i_mode)) { + inode->i_op = &cramfs_dir_inode_operations; + inode->i_fop = &cramfs_directory_operations; + } else if (S_ISLNK(inode->i_mode)) { + inode->i_op = &page_symlink_inode_operations; + inode->i_data.a_ops = &cramfs_aops; + } else { + init_special_inode(inode, inode->i_mode, + old_decode_dev(cramfs_inode->size)); + } } static struct inode *get_cramfs_inode(struct super_block *sb, struct cramfs_inode * cramfs_inode) { - struct inode *inode = iget5_locked(sb, CRAMINO(cramfs_inode), - cramfs_iget5_test, cramfs_iget5_set, - cramfs_inode); - static struct timespec zerotime; - - if (inode && (inode->i_state & I_NEW)) { - inode->i_mode = cramfs_inode->mode; - inode->i_uid = cramfs_inode->uid; - inode->i_size = cramfs_inode->size; - inode->i_blocks = (cramfs_inode->size - 1) / 512 + 1; - inode->i_gid = cramfs_inode->gid; - /* Struct copy intentional */ - inode->i_mtime = inode->i_atime = inode->i_ctime = zerotime; - /* inode->i_nlink is left 1 - arguably wrong for directories, - but it's the best we can do without reading the directory - contents. 1 yields the right result in GNU find, even - without -noleaf option. */ - if (S_ISREG(inode->i_mode)) { - inode->i_fop = &generic_ro_fops; - inode->i_data.a_ops = &cramfs_aops; - } else if (S_ISDIR(inode->i_mode)) { - inode->i_op = &cramfs_dir_inode_operations; - inode->i_fop = &cramfs_directory_operations; - } else if (S_ISLNK(inode->i_mode)) { - inode->i_op = &page_symlink_inode_operations; - inode->i_data.a_ops = &cramfs_aops; - } else { - init_special_inode(inode, inode->i_mode, - old_decode_dev(cramfs_inode->size)); + struct inode *inode; + if (CRAMINO(cramfs_inode) == 1) { + inode = new_inode(sb); + if (inode) { + inode->i_ino = 1; + setup_inode(inode, cramfs_inode); + } + } else { + inode = iget_locked(sb, CRAMINO(cramfs_inode)); + if (inode) { + setup_inode(inode, cramfs_inode); + unlock_new_inode(inode); } - unlock_new_inode(inode); } return inode; } -static void cramfs_drop_inode(struct inode *inode) -{ - if (inode->i_ino == 1) - generic_delete_inode(inode); - else - generic_drop_inode(inode); -} - /* * We have our own block cache: don't fill up the buffer cache * with the rom-image, because the way the filesystem is set @@ -542,7 +531,6 @@ static const struct super_operations cramfs_ops = { .put_super = cramfs_put_super, .remount_fs = cramfs_remount, .statfs = cramfs_statfs, - .drop_inode = cramfs_drop_inode, }; static int cramfs_get_sb(struct file_system_type *fs_type, |