147e4937aSGao Xiang // SPDX-License-Identifier: GPL-2.0-only 247e4937aSGao Xiang /* 347e4937aSGao Xiang * Copyright (C) 2017-2018 HUAWEI, Inc. 4592e7cd0SAlexander A. Klimov * https://www.huawei.com/ 5c5aa903aSGao Xiang * Copyright (C) 2021, Alibaba Cloud 647e4937aSGao Xiang */ 747e4937aSGao Xiang #include "xattr.h" 847e4937aSGao Xiang 947e4937aSGao Xiang #include <trace/events/erofs.h> 1047e4937aSGao Xiang 110dcd3c94SGao Xiang /* 120dcd3c94SGao Xiang * if inode is successfully read, return its inode page (or sometimes 130dcd3c94SGao Xiang * the inode payload page if it's an extended inode) in order to fill 140dcd3c94SGao Xiang * inline data if possible. 150dcd3c94SGao Xiang */ 16*c521e3adSGao Xiang static void *erofs_read_inode(struct erofs_buf *buf, 17*c521e3adSGao Xiang struct inode *inode, unsigned int *ofs) 1847e4937aSGao Xiang { 190dcd3c94SGao Xiang struct super_block *sb = inode->i_sb; 200dcd3c94SGao Xiang struct erofs_sb_info *sbi = EROFS_SB(sb); 21a5876e24SGao Xiang struct erofs_inode *vi = EROFS_I(inode); 220dcd3c94SGao Xiang const erofs_off_t inode_loc = iloc(sbi, vi->nid); 238a765682SGao Xiang 240dcd3c94SGao Xiang erofs_blk_t blkaddr, nblks = 0; 25*c521e3adSGao Xiang void *kaddr; 260dcd3c94SGao Xiang struct erofs_inode_compact *dic; 270dcd3c94SGao Xiang struct erofs_inode_extended *die, *copied = NULL; 280dcd3c94SGao Xiang unsigned int ifmt; 290dcd3c94SGao Xiang int err; 300dcd3c94SGao Xiang 310dcd3c94SGao Xiang blkaddr = erofs_blknr(inode_loc); 320dcd3c94SGao Xiang *ofs = erofs_blkoff(inode_loc); 330dcd3c94SGao Xiang 340dcd3c94SGao Xiang erofs_dbg("%s, reading inode nid %llu at %u of blkaddr %u", 350dcd3c94SGao Xiang __func__, vi->nid, *ofs, blkaddr); 360dcd3c94SGao Xiang 37*c521e3adSGao Xiang kaddr = erofs_read_metabuf(buf, sb, blkaddr, EROFS_KMAP); 38*c521e3adSGao Xiang if (IS_ERR(kaddr)) { 390dcd3c94SGao Xiang erofs_err(sb, "failed to get inode (nid: %llu) page, err %ld", 40*c521e3adSGao Xiang vi->nid, PTR_ERR(kaddr)); 41*c521e3adSGao Xiang return kaddr; 420dcd3c94SGao Xiang } 430dcd3c94SGao Xiang 44*c521e3adSGao Xiang dic = kaddr + *ofs; 450dcd3c94SGao Xiang ifmt = le16_to_cpu(dic->i_format); 4647e4937aSGao Xiang 4724a806d8SGao Xiang if (ifmt & ~EROFS_I_ALL) { 4824a806d8SGao Xiang erofs_err(inode->i_sb, "unsupported i_format %u of nid %llu", 4924a806d8SGao Xiang ifmt, vi->nid); 5024a806d8SGao Xiang err = -EOPNOTSUPP; 5124a806d8SGao Xiang goto err_out; 5224a806d8SGao Xiang } 5324a806d8SGao Xiang 548a765682SGao Xiang vi->datalayout = erofs_inode_datalayout(ifmt); 558a765682SGao Xiang if (vi->datalayout >= EROFS_INODE_DATALAYOUT_MAX) { 564f761fa2SGao Xiang erofs_err(inode->i_sb, "unsupported datalayout %u of nid %llu", 578a765682SGao Xiang vi->datalayout, vi->nid); 580dcd3c94SGao Xiang err = -EOPNOTSUPP; 590dcd3c94SGao Xiang goto err_out; 6047e4937aSGao Xiang } 6147e4937aSGao Xiang 628a765682SGao Xiang switch (erofs_inode_version(ifmt)) { 638a765682SGao Xiang case EROFS_INODE_LAYOUT_EXTENDED: 648a765682SGao Xiang vi->inode_isize = sizeof(struct erofs_inode_extended); 65*c521e3adSGao Xiang /* check if the extended inode acrosses block boundary */ 66*c521e3adSGao Xiang if (*ofs + vi->inode_isize <= EROFS_BLKSIZ) { 670dcd3c94SGao Xiang *ofs += vi->inode_isize; 680dcd3c94SGao Xiang die = (struct erofs_inode_extended *)dic; 690dcd3c94SGao Xiang } else { 70*c521e3adSGao Xiang const unsigned int gotten = EROFS_BLKSIZ - *ofs; 710dcd3c94SGao Xiang 720dcd3c94SGao Xiang copied = kmalloc(vi->inode_isize, GFP_NOFS); 730dcd3c94SGao Xiang if (!copied) { 740dcd3c94SGao Xiang err = -ENOMEM; 750dcd3c94SGao Xiang goto err_out; 760dcd3c94SGao Xiang } 770dcd3c94SGao Xiang memcpy(copied, dic, gotten); 78*c521e3adSGao Xiang kaddr = erofs_read_metabuf(buf, sb, blkaddr + 1, 79*c521e3adSGao Xiang EROFS_KMAP); 80*c521e3adSGao Xiang if (IS_ERR(kaddr)) { 81*c521e3adSGao Xiang erofs_err(sb, "failed to get inode payload block (nid: %llu), err %ld", 82*c521e3adSGao Xiang vi->nid, PTR_ERR(kaddr)); 830dcd3c94SGao Xiang kfree(copied); 84*c521e3adSGao Xiang return kaddr; 850dcd3c94SGao Xiang } 860dcd3c94SGao Xiang *ofs = vi->inode_isize - gotten; 87*c521e3adSGao Xiang memcpy((u8 *)copied + gotten, kaddr, *ofs); 880dcd3c94SGao Xiang die = copied; 890dcd3c94SGao Xiang } 908a765682SGao Xiang vi->xattr_isize = erofs_xattr_ibody_size(die->i_xattr_icount); 9147e4937aSGao Xiang 928a765682SGao Xiang inode->i_mode = le16_to_cpu(die->i_mode); 938a765682SGao Xiang switch (inode->i_mode & S_IFMT) { 948a765682SGao Xiang case S_IFREG: 958a765682SGao Xiang case S_IFDIR: 968a765682SGao Xiang case S_IFLNK: 978a765682SGao Xiang vi->raw_blkaddr = le32_to_cpu(die->i_u.raw_blkaddr); 988a765682SGao Xiang break; 998a765682SGao Xiang case S_IFCHR: 1008a765682SGao Xiang case S_IFBLK: 10147e4937aSGao Xiang inode->i_rdev = 1028a765682SGao Xiang new_decode_dev(le32_to_cpu(die->i_u.rdev)); 1038a765682SGao Xiang break; 1048a765682SGao Xiang case S_IFIFO: 1058a765682SGao Xiang case S_IFSOCK: 10647e4937aSGao Xiang inode->i_rdev = 0; 1078a765682SGao Xiang break; 1088a765682SGao Xiang default: 10947e4937aSGao Xiang goto bogusimode; 1108a765682SGao Xiang } 1118a765682SGao Xiang i_uid_write(inode, le32_to_cpu(die->i_uid)); 1128a765682SGao Xiang i_gid_write(inode, le32_to_cpu(die->i_gid)); 1138a765682SGao Xiang set_nlink(inode, le32_to_cpu(die->i_nlink)); 11447e4937aSGao Xiang 115d3938ee2SGao Xiang /* extended inode has its own timestamp */ 116d3938ee2SGao Xiang inode->i_ctime.tv_sec = le64_to_cpu(die->i_ctime); 117d3938ee2SGao Xiang inode->i_ctime.tv_nsec = le32_to_cpu(die->i_ctime_nsec); 11847e4937aSGao Xiang 1198a765682SGao Xiang inode->i_size = le64_to_cpu(die->i_size); 12047e4937aSGao Xiang 12147e4937aSGao Xiang /* total blocks for compressed files */ 1228a765682SGao Xiang if (erofs_inode_is_data_compressed(vi->datalayout)) 1238a765682SGao Xiang nblks = le32_to_cpu(die->i_u.compressed_blocks); 124c5aa903aSGao Xiang else if (vi->datalayout == EROFS_INODE_CHUNK_BASED) 125c5aa903aSGao Xiang /* fill chunked inode summary info */ 126c5aa903aSGao Xiang vi->chunkformat = le16_to_cpu(die->i_u.c.format); 1270dcd3c94SGao Xiang kfree(copied); 1281266b4a7SGao Xiang copied = NULL; 1298a765682SGao Xiang break; 1308a765682SGao Xiang case EROFS_INODE_LAYOUT_COMPACT: 1318a765682SGao Xiang vi->inode_isize = sizeof(struct erofs_inode_compact); 1320dcd3c94SGao Xiang *ofs += vi->inode_isize; 1338a765682SGao Xiang vi->xattr_isize = erofs_xattr_ibody_size(dic->i_xattr_icount); 13447e4937aSGao Xiang 1358a765682SGao Xiang inode->i_mode = le16_to_cpu(dic->i_mode); 1368a765682SGao Xiang switch (inode->i_mode & S_IFMT) { 1378a765682SGao Xiang case S_IFREG: 1388a765682SGao Xiang case S_IFDIR: 1398a765682SGao Xiang case S_IFLNK: 1408a765682SGao Xiang vi->raw_blkaddr = le32_to_cpu(dic->i_u.raw_blkaddr); 1418a765682SGao Xiang break; 1428a765682SGao Xiang case S_IFCHR: 1438a765682SGao Xiang case S_IFBLK: 14447e4937aSGao Xiang inode->i_rdev = 1458a765682SGao Xiang new_decode_dev(le32_to_cpu(dic->i_u.rdev)); 1468a765682SGao Xiang break; 1478a765682SGao Xiang case S_IFIFO: 1488a765682SGao Xiang case S_IFSOCK: 14947e4937aSGao Xiang inode->i_rdev = 0; 1508a765682SGao Xiang break; 1518a765682SGao Xiang default: 15247e4937aSGao Xiang goto bogusimode; 1538a765682SGao Xiang } 1548a765682SGao Xiang i_uid_write(inode, le16_to_cpu(dic->i_uid)); 1558a765682SGao Xiang i_gid_write(inode, le16_to_cpu(dic->i_gid)); 1568a765682SGao Xiang set_nlink(inode, le16_to_cpu(dic->i_nlink)); 15747e4937aSGao Xiang 158d3938ee2SGao Xiang /* use build time for compact inodes */ 159d3938ee2SGao Xiang inode->i_ctime.tv_sec = sbi->build_time; 160d3938ee2SGao Xiang inode->i_ctime.tv_nsec = sbi->build_time_nsec; 16147e4937aSGao Xiang 1628a765682SGao Xiang inode->i_size = le32_to_cpu(dic->i_size); 1638a765682SGao Xiang if (erofs_inode_is_data_compressed(vi->datalayout)) 1648a765682SGao Xiang nblks = le32_to_cpu(dic->i_u.compressed_blocks); 165c5aa903aSGao Xiang else if (vi->datalayout == EROFS_INODE_CHUNK_BASED) 166c5aa903aSGao Xiang vi->chunkformat = le16_to_cpu(dic->i_u.c.format); 1678a765682SGao Xiang break; 1688a765682SGao Xiang default: 1694f761fa2SGao Xiang erofs_err(inode->i_sb, 1704f761fa2SGao Xiang "unsupported on-disk inode version %u of nid %llu", 1718a765682SGao Xiang erofs_inode_version(ifmt), vi->nid); 1720dcd3c94SGao Xiang err = -EOPNOTSUPP; 1730dcd3c94SGao Xiang goto err_out; 17447e4937aSGao Xiang } 17547e4937aSGao Xiang 176c5aa903aSGao Xiang if (vi->datalayout == EROFS_INODE_CHUNK_BASED) { 177d705117dSGao Xiang if (vi->chunkformat & ~EROFS_CHUNK_FORMAT_ALL) { 178c5aa903aSGao Xiang erofs_err(inode->i_sb, 179c5aa903aSGao Xiang "unsupported chunk format %x of nid %llu", 180c5aa903aSGao Xiang vi->chunkformat, vi->nid); 181c5aa903aSGao Xiang err = -EOPNOTSUPP; 182c5aa903aSGao Xiang goto err_out; 183c5aa903aSGao Xiang } 184c5aa903aSGao Xiang vi->chunkbits = LOG_BLOCK_SIZE + 185c5aa903aSGao Xiang (vi->chunkformat & EROFS_CHUNK_FORMAT_BLKBITS_MASK); 186c5aa903aSGao Xiang } 187d3938ee2SGao Xiang inode->i_mtime.tv_sec = inode->i_ctime.tv_sec; 188d3938ee2SGao Xiang inode->i_atime.tv_sec = inode->i_ctime.tv_sec; 189d3938ee2SGao Xiang inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec; 190d3938ee2SGao Xiang inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec; 191d3938ee2SGao Xiang 19206252e9cSGao Xiang inode->i_flags &= ~S_DAX; 193e6242465SGao Xiang if (test_opt(&sbi->opt, DAX_ALWAYS) && S_ISREG(inode->i_mode) && 19406252e9cSGao Xiang vi->datalayout == EROFS_INODE_FLAT_PLAIN) 19506252e9cSGao Xiang inode->i_flags |= S_DAX; 19647e4937aSGao Xiang if (!nblks) 19747e4937aSGao Xiang /* measure inode.i_blocks as generic filesystems */ 19847e4937aSGao Xiang inode->i_blocks = roundup(inode->i_size, EROFS_BLKSIZ) >> 9; 19947e4937aSGao Xiang else 20047e4937aSGao Xiang inode->i_blocks = nblks << LOG_SECTORS_PER_BLOCK; 201*c521e3adSGao Xiang return kaddr; 20247e4937aSGao Xiang 20347e4937aSGao Xiang bogusimode: 2044f761fa2SGao Xiang erofs_err(inode->i_sb, "bogus i_mode (%o) @ nid %llu", 2054f761fa2SGao Xiang inode->i_mode, vi->nid); 2060dcd3c94SGao Xiang err = -EFSCORRUPTED; 2070dcd3c94SGao Xiang err_out: 20847e4937aSGao Xiang DBG_BUGON(1); 2090dcd3c94SGao Xiang kfree(copied); 210*c521e3adSGao Xiang erofs_put_metabuf(buf); 2110dcd3c94SGao Xiang return ERR_PTR(err); 21247e4937aSGao Xiang } 21347e4937aSGao Xiang 214*c521e3adSGao Xiang static int erofs_fill_symlink(struct inode *inode, void *kaddr, 21547e4937aSGao Xiang unsigned int m_pofs) 21647e4937aSGao Xiang { 217a5876e24SGao Xiang struct erofs_inode *vi = EROFS_I(inode); 218a2c75c81SGao Xiang char *lnk; 21947e4937aSGao Xiang 220a2c75c81SGao Xiang /* if it cannot be handled with fast symlink scheme */ 221a2c75c81SGao Xiang if (vi->datalayout != EROFS_INODE_FLAT_INLINE || 222*c521e3adSGao Xiang inode->i_size >= EROFS_BLKSIZ) { 223a2c75c81SGao Xiang inode->i_op = &erofs_symlink_iops; 22447e4937aSGao Xiang return 0; 225a2c75c81SGao Xiang } 22647e4937aSGao Xiang 227e2c71e74SGao Xiang lnk = kmalloc(inode->i_size + 1, GFP_KERNEL); 2288d8a09b0SGao Xiang if (!lnk) 22947e4937aSGao Xiang return -ENOMEM; 23047e4937aSGao Xiang 2310dcd3c94SGao Xiang m_pofs += vi->xattr_isize; 232*c521e3adSGao Xiang /* inline symlink data shouldn't cross block boundary */ 233*c521e3adSGao Xiang if (m_pofs + inode->i_size > EROFS_BLKSIZ) { 23447e4937aSGao Xiang kfree(lnk); 2354f761fa2SGao Xiang erofs_err(inode->i_sb, 2364f761fa2SGao Xiang "inline data cross block boundary @ nid %llu", 23747e4937aSGao Xiang vi->nid); 23847e4937aSGao Xiang DBG_BUGON(1); 23947e4937aSGao Xiang return -EFSCORRUPTED; 24047e4937aSGao Xiang } 241*c521e3adSGao Xiang memcpy(lnk, kaddr + m_pofs, inode->i_size); 24247e4937aSGao Xiang lnk[inode->i_size] = '\0'; 24347e4937aSGao Xiang 24447e4937aSGao Xiang inode->i_link = lnk; 245a2c75c81SGao Xiang inode->i_op = &erofs_fast_symlink_iops; 24647e4937aSGao Xiang return 0; 24747e4937aSGao Xiang } 24847e4937aSGao Xiang 24999634bf3SGao Xiang static int erofs_fill_inode(struct inode *inode, int isdir) 25047e4937aSGao Xiang { 251a5876e24SGao Xiang struct erofs_inode *vi = EROFS_I(inode); 252*c521e3adSGao Xiang struct erofs_buf buf = __EROFS_BUF_INITIALIZER; 253*c521e3adSGao Xiang void *kaddr; 25447e4937aSGao Xiang unsigned int ofs; 2550dcd3c94SGao Xiang int err = 0; 25647e4937aSGao Xiang 25747e4937aSGao Xiang trace_erofs_fill_inode(inode, isdir); 25847e4937aSGao Xiang 2590dcd3c94SGao Xiang /* read inode base data from disk */ 260*c521e3adSGao Xiang kaddr = erofs_read_inode(&buf, inode, &ofs); 261*c521e3adSGao Xiang if (IS_ERR(kaddr)) 262*c521e3adSGao Xiang return PTR_ERR(kaddr); 26384947eb6SGao Xiang 26447e4937aSGao Xiang /* setup the new inode */ 265512f9922SPratik Shinde switch (inode->i_mode & S_IFMT) { 266512f9922SPratik Shinde case S_IFREG: 26747e4937aSGao Xiang inode->i_op = &erofs_generic_iops; 268a08e67a0SHuang Jianan if (erofs_inode_is_data_compressed(vi->datalayout)) 26947e4937aSGao Xiang inode->i_fop = &generic_ro_fops; 270a08e67a0SHuang Jianan else 271a08e67a0SHuang Jianan inode->i_fop = &erofs_file_fops; 272512f9922SPratik Shinde break; 273512f9922SPratik Shinde case S_IFDIR: 27447e4937aSGao Xiang inode->i_op = &erofs_dir_iops; 27547e4937aSGao Xiang inode->i_fop = &erofs_dir_fops; 276512f9922SPratik Shinde break; 277512f9922SPratik Shinde case S_IFLNK: 278*c521e3adSGao Xiang err = erofs_fill_symlink(inode, kaddr, ofs); 279a2c75c81SGao Xiang if (err) 280a2c75c81SGao Xiang goto out_unlock; 28147e4937aSGao Xiang inode_nohighmem(inode); 282512f9922SPratik Shinde break; 283512f9922SPratik Shinde case S_IFCHR: 284512f9922SPratik Shinde case S_IFBLK: 285512f9922SPratik Shinde case S_IFIFO: 286512f9922SPratik Shinde case S_IFSOCK: 28747e4937aSGao Xiang inode->i_op = &erofs_generic_iops; 28847e4937aSGao Xiang init_special_inode(inode, inode->i_mode, inode->i_rdev); 28947e4937aSGao Xiang goto out_unlock; 290512f9922SPratik Shinde default: 29147e4937aSGao Xiang err = -EFSCORRUPTED; 29247e4937aSGao Xiang goto out_unlock; 29347e4937aSGao Xiang } 29447e4937aSGao Xiang 2958a765682SGao Xiang if (erofs_inode_is_data_compressed(vi->datalayout)) { 29647e4937aSGao Xiang err = z_erofs_fill_inode(inode); 29747e4937aSGao Xiang goto out_unlock; 29847e4937aSGao Xiang } 29947e4937aSGao Xiang inode->i_mapping->a_ops = &erofs_raw_access_aops; 30047e4937aSGao Xiang 30147e4937aSGao Xiang out_unlock: 302*c521e3adSGao Xiang erofs_put_metabuf(&buf); 30347e4937aSGao Xiang return err; 30447e4937aSGao Xiang } 30547e4937aSGao Xiang 30647e4937aSGao Xiang /* 30747e4937aSGao Xiang * erofs nid is 64bits, but i_ino is 'unsigned long', therefore 30847e4937aSGao Xiang * we should do more for 32-bit platform to find the right inode. 30947e4937aSGao Xiang */ 31047e4937aSGao Xiang static int erofs_ilookup_test_actor(struct inode *inode, void *opaque) 31147e4937aSGao Xiang { 31247e4937aSGao Xiang const erofs_nid_t nid = *(erofs_nid_t *)opaque; 31347e4937aSGao Xiang 314a5876e24SGao Xiang return EROFS_I(inode)->nid == nid; 31547e4937aSGao Xiang } 31647e4937aSGao Xiang 31747e4937aSGao Xiang static int erofs_iget_set_actor(struct inode *inode, void *opaque) 31847e4937aSGao Xiang { 31947e4937aSGao Xiang const erofs_nid_t nid = *(erofs_nid_t *)opaque; 32047e4937aSGao Xiang 32147e4937aSGao Xiang inode->i_ino = erofs_inode_hash(nid); 32247e4937aSGao Xiang return 0; 32347e4937aSGao Xiang } 32447e4937aSGao Xiang 32547e4937aSGao Xiang static inline struct inode *erofs_iget_locked(struct super_block *sb, 32647e4937aSGao Xiang erofs_nid_t nid) 32747e4937aSGao Xiang { 32847e4937aSGao Xiang const unsigned long hashval = erofs_inode_hash(nid); 32947e4937aSGao Xiang 33047e4937aSGao Xiang return iget5_locked(sb, hashval, erofs_ilookup_test_actor, 33147e4937aSGao Xiang erofs_iget_set_actor, &nid); 33247e4937aSGao Xiang } 33347e4937aSGao Xiang 33447e4937aSGao Xiang struct inode *erofs_iget(struct super_block *sb, 33547e4937aSGao Xiang erofs_nid_t nid, 33647e4937aSGao Xiang bool isdir) 33747e4937aSGao Xiang { 33847e4937aSGao Xiang struct inode *inode = erofs_iget_locked(sb, nid); 33947e4937aSGao Xiang 3408d8a09b0SGao Xiang if (!inode) 34147e4937aSGao Xiang return ERR_PTR(-ENOMEM); 34247e4937aSGao Xiang 34347e4937aSGao Xiang if (inode->i_state & I_NEW) { 34447e4937aSGao Xiang int err; 345a5876e24SGao Xiang struct erofs_inode *vi = EROFS_I(inode); 34647e4937aSGao Xiang 34747e4937aSGao Xiang vi->nid = nid; 34847e4937aSGao Xiang 34999634bf3SGao Xiang err = erofs_fill_inode(inode, isdir); 3508d8a09b0SGao Xiang if (!err) 35147e4937aSGao Xiang unlock_new_inode(inode); 35247e4937aSGao Xiang else { 35347e4937aSGao Xiang iget_failed(inode); 35447e4937aSGao Xiang inode = ERR_PTR(err); 35547e4937aSGao Xiang } 35647e4937aSGao Xiang } 35747e4937aSGao Xiang return inode; 35847e4937aSGao Xiang } 35947e4937aSGao Xiang 360549c7297SChristian Brauner int erofs_getattr(struct user_namespace *mnt_userns, const struct path *path, 361549c7297SChristian Brauner struct kstat *stat, u32 request_mask, 362549c7297SChristian Brauner unsigned int query_flags) 36347e4937aSGao Xiang { 36447e4937aSGao Xiang struct inode *const inode = d_inode(path->dentry); 36547e4937aSGao Xiang 366a5876e24SGao Xiang if (erofs_inode_is_data_compressed(EROFS_I(inode)->datalayout)) 36747e4937aSGao Xiang stat->attributes |= STATX_ATTR_COMPRESSED; 36847e4937aSGao Xiang 36947e4937aSGao Xiang stat->attributes |= STATX_ATTR_IMMUTABLE; 37047e4937aSGao Xiang stat->attributes_mask |= (STATX_ATTR_COMPRESSED | 37147e4937aSGao Xiang STATX_ATTR_IMMUTABLE); 37247e4937aSGao Xiang 3730d56a451SChristian Brauner generic_fillattr(&init_user_ns, inode, stat); 37447e4937aSGao Xiang return 0; 37547e4937aSGao Xiang } 37647e4937aSGao Xiang 37747e4937aSGao Xiang const struct inode_operations erofs_generic_iops = { 37847e4937aSGao Xiang .getattr = erofs_getattr, 37947e4937aSGao Xiang .listxattr = erofs_listxattr, 38047e4937aSGao Xiang .get_acl = erofs_get_acl, 381eadcd6b5SGao Xiang .fiemap = erofs_fiemap, 38247e4937aSGao Xiang }; 38347e4937aSGao Xiang 38447e4937aSGao Xiang const struct inode_operations erofs_symlink_iops = { 38547e4937aSGao Xiang .get_link = page_get_link, 38647e4937aSGao Xiang .getattr = erofs_getattr, 38747e4937aSGao Xiang .listxattr = erofs_listxattr, 38847e4937aSGao Xiang .get_acl = erofs_get_acl, 38947e4937aSGao Xiang }; 39047e4937aSGao Xiang 39147e4937aSGao Xiang const struct inode_operations erofs_fast_symlink_iops = { 39247e4937aSGao Xiang .get_link = simple_get_link, 39347e4937aSGao Xiang .getattr = erofs_getattr, 39447e4937aSGao Xiang .listxattr = erofs_listxattr, 39547e4937aSGao Xiang .get_acl = erofs_get_acl, 39647e4937aSGao Xiang }; 397