diff options
Diffstat (limited to 'drivers/staging/erofs/inode.c')
| -rw-r--r-- | drivers/staging/erofs/inode.c | 58 |
1 files changed, 40 insertions, 18 deletions
diff --git a/drivers/staging/erofs/inode.c b/drivers/staging/erofs/inode.c index c7d3b815a798..4c3d8bf8d249 100644 --- a/drivers/staging/erofs/inode.c +++ b/drivers/staging/erofs/inode.c @@ -20,12 +20,13 @@ static int read_inode(struct inode *inode, void *data) struct erofs_vnode *vi = EROFS_V(inode); struct erofs_inode_v1 *v1 = data; const unsigned int advise = le16_to_cpu(v1->i_advise); + erofs_blk_t nblks = 0; - vi->data_mapping_mode = __inode_data_mapping(advise); + vi->datamode = __inode_data_mapping(advise); - if (unlikely(vi->data_mapping_mode >= EROFS_INODE_LAYOUT_MAX)) { - errln("unknown data mapping mode %u of nid %llu", - vi->data_mapping_mode, vi->nid); + if (unlikely(vi->datamode >= EROFS_INODE_LAYOUT_MAX)) { + errln("unsupported data mapping %u of nid %llu", + vi->datamode, vi->nid); DBG_BUGON(1); return -EIO; } @@ -60,6 +61,10 @@ static int read_inode(struct inode *inode, void *data) le32_to_cpu(v2->i_ctime_nsec); inode->i_size = le64_to_cpu(v2->i_size); + + /* total blocks for compressed files */ + if (is_inode_layout_compression(inode)) + nblks = le32_to_cpu(v2->i_u.compressed_blocks); } else if (__inode_version(advise) == EROFS_INODE_LAYOUT_V1) { struct erofs_sb_info *sbi = EROFS_SB(inode->i_sb); @@ -90,6 +95,8 @@ static int read_inode(struct inode *inode, void *data) sbi->build_time_nsec; inode->i_size = le32_to_cpu(v1->i_size); + if (is_inode_layout_compression(inode)) + nblks = le32_to_cpu(v1->i_u.compressed_blocks); } else { errln("unsupported on-disk inode version %u of nid %llu", __inode_version(advise), vi->nid); @@ -97,8 +104,11 @@ static int read_inode(struct inode *inode, void *data) return -EIO; } - /* measure inode.i_blocks as the generic filesystem */ - inode->i_blocks = ((inode->i_size - 1) >> 9) + 1; + if (!nblks) + /* measure inode.i_blocks as generic filesystems */ + inode->i_blocks = roundup(inode->i_size, EROFS_BLKSIZ) >> 9; + else + inode->i_blocks = nblks << LOG_SECTORS_PER_BLOCK; return 0; } @@ -117,12 +127,9 @@ static int fill_inline_data(struct inode *inode, void *data, { struct erofs_vnode *vi = EROFS_V(inode); struct erofs_sb_info *sbi = EROFS_I_SB(inode); - int mode = vi->data_mapping_mode; - - DBG_BUGON(mode >= EROFS_INODE_LAYOUT_MAX); /* should be inode inline C */ - if (mode != EROFS_INODE_LAYOUT_INLINE) + if (!is_inode_flat_inline(inode)) return 0; /* fast symlink (following ext4) */ @@ -148,7 +155,7 @@ static int fill_inline_data(struct inode *inode, void *data, inode->i_link = lnk; set_inode_fast_symlink(inode); } - return -EAGAIN; + return 0; } static int fill_inode(struct inode *inode, int isdir) @@ -197,25 +204,21 @@ static int fill_inode(struct inode *inode, int isdir) S_ISFIFO(inode->i_mode) || S_ISSOCK(inode->i_mode)) { inode->i_op = &erofs_generic_iops; init_special_inode(inode, inode->i_mode, inode->i_rdev); + goto out_unlock; } else { err = -EIO; goto out_unlock; } if (is_inode_layout_compression(inode)) { -#ifdef CONFIG_EROFS_FS_ZIP - inode->i_mapping->a_ops = - &z_erofs_vle_normalaccess_aops; -#else - err = -ENOTSUPP; -#endif + err = z_erofs_fill_inode(inode); goto out_unlock; } inode->i_mapping->a_ops = &erofs_raw_access_aops; /* fill last page if inline data is available */ - fill_inline_data(inode, data, ofs); + err = fill_inline_data(inode, data, ofs); } out_unlock: @@ -285,7 +288,24 @@ struct inode *erofs_iget(struct super_block *sb, return inode; } +int erofs_getattr(const struct path *path, struct kstat *stat, + u32 request_mask, unsigned int query_flags) +{ + struct inode *const inode = d_inode(path->dentry); + + if (is_inode_layout_compression(inode)) + stat->attributes |= STATX_ATTR_COMPRESSED; + + stat->attributes |= STATX_ATTR_IMMUTABLE; + stat->attributes_mask |= (STATX_ATTR_COMPRESSED | + STATX_ATTR_IMMUTABLE); + + generic_fillattr(inode, stat); + return 0; +} + const struct inode_operations erofs_generic_iops = { + .getattr = erofs_getattr, #ifdef CONFIG_EROFS_FS_XATTR .listxattr = erofs_listxattr, #endif @@ -294,6 +314,7 @@ const struct inode_operations erofs_generic_iops = { const struct inode_operations erofs_symlink_iops = { .get_link = page_get_link, + .getattr = erofs_getattr, #ifdef CONFIG_EROFS_FS_XATTR .listxattr = erofs_listxattr, #endif @@ -302,6 +323,7 @@ const struct inode_operations erofs_symlink_iops = { const struct inode_operations erofs_fast_symlink_iops = { .get_link = simple_get_link, + .getattr = erofs_getattr, #ifdef CONFIG_EROFS_FS_XATTR .listxattr = erofs_listxattr, #endif |