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 */ 160dcd3c94SGao Xiang static struct page *erofs_read_inode(struct inode *inode, 170dcd3c94SGao Xiang 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; 250dcd3c94SGao Xiang struct page *page; 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 370dcd3c94SGao Xiang page = erofs_get_meta_page(sb, blkaddr); 380dcd3c94SGao Xiang if (IS_ERR(page)) { 390dcd3c94SGao Xiang erofs_err(sb, "failed to get inode (nid: %llu) page, err %ld", 400dcd3c94SGao Xiang vi->nid, PTR_ERR(page)); 410dcd3c94SGao Xiang return page; 420dcd3c94SGao Xiang } 430dcd3c94SGao Xiang 440dcd3c94SGao Xiang dic = page_address(page) + *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); 650dcd3c94SGao Xiang /* check if the inode acrosses page boundary */ 660dcd3c94SGao Xiang if (*ofs + vi->inode_isize <= PAGE_SIZE) { 670dcd3c94SGao Xiang *ofs += vi->inode_isize; 680dcd3c94SGao Xiang die = (struct erofs_inode_extended *)dic; 690dcd3c94SGao Xiang } else { 700dcd3c94SGao Xiang const unsigned int gotten = PAGE_SIZE - *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); 780dcd3c94SGao Xiang unlock_page(page); 790dcd3c94SGao Xiang put_page(page); 800dcd3c94SGao Xiang 810dcd3c94SGao Xiang page = erofs_get_meta_page(sb, blkaddr + 1); 820dcd3c94SGao Xiang if (IS_ERR(page)) { 830dcd3c94SGao Xiang erofs_err(sb, "failed to get inode payload page (nid: %llu), err %ld", 840dcd3c94SGao Xiang vi->nid, PTR_ERR(page)); 850dcd3c94SGao Xiang kfree(copied); 860dcd3c94SGao Xiang return page; 870dcd3c94SGao Xiang } 880dcd3c94SGao Xiang *ofs = vi->inode_isize - gotten; 890dcd3c94SGao Xiang memcpy((u8 *)copied + gotten, page_address(page), *ofs); 900dcd3c94SGao Xiang die = copied; 910dcd3c94SGao Xiang } 928a765682SGao Xiang vi->xattr_isize = erofs_xattr_ibody_size(die->i_xattr_icount); 9347e4937aSGao Xiang 948a765682SGao Xiang inode->i_mode = le16_to_cpu(die->i_mode); 958a765682SGao Xiang switch (inode->i_mode & S_IFMT) { 968a765682SGao Xiang case S_IFREG: 978a765682SGao Xiang case S_IFDIR: 988a765682SGao Xiang case S_IFLNK: 998a765682SGao Xiang vi->raw_blkaddr = le32_to_cpu(die->i_u.raw_blkaddr); 1008a765682SGao Xiang break; 1018a765682SGao Xiang case S_IFCHR: 1028a765682SGao Xiang case S_IFBLK: 10347e4937aSGao Xiang inode->i_rdev = 1048a765682SGao Xiang new_decode_dev(le32_to_cpu(die->i_u.rdev)); 1058a765682SGao Xiang break; 1068a765682SGao Xiang case S_IFIFO: 1078a765682SGao Xiang case S_IFSOCK: 10847e4937aSGao Xiang inode->i_rdev = 0; 1098a765682SGao Xiang break; 1108a765682SGao Xiang default: 11147e4937aSGao Xiang goto bogusimode; 1128a765682SGao Xiang } 1138a765682SGao Xiang i_uid_write(inode, le32_to_cpu(die->i_uid)); 1148a765682SGao Xiang i_gid_write(inode, le32_to_cpu(die->i_gid)); 1158a765682SGao Xiang set_nlink(inode, le32_to_cpu(die->i_nlink)); 11647e4937aSGao Xiang 117d3938ee2SGao Xiang /* extended inode has its own timestamp */ 118d3938ee2SGao Xiang inode->i_ctime.tv_sec = le64_to_cpu(die->i_ctime); 119d3938ee2SGao Xiang inode->i_ctime.tv_nsec = le32_to_cpu(die->i_ctime_nsec); 12047e4937aSGao Xiang 1218a765682SGao Xiang inode->i_size = le64_to_cpu(die->i_size); 12247e4937aSGao Xiang 12347e4937aSGao Xiang /* total blocks for compressed files */ 1248a765682SGao Xiang if (erofs_inode_is_data_compressed(vi->datalayout)) 1258a765682SGao Xiang nblks = le32_to_cpu(die->i_u.compressed_blocks); 126c5aa903aSGao Xiang else if (vi->datalayout == EROFS_INODE_CHUNK_BASED) 127c5aa903aSGao Xiang /* fill chunked inode summary info */ 128c5aa903aSGao Xiang vi->chunkformat = le16_to_cpu(die->i_u.c.format); 1290dcd3c94SGao Xiang kfree(copied); 1301266b4a7SGao Xiang copied = NULL; 1318a765682SGao Xiang break; 1328a765682SGao Xiang case EROFS_INODE_LAYOUT_COMPACT: 1338a765682SGao Xiang vi->inode_isize = sizeof(struct erofs_inode_compact); 1340dcd3c94SGao Xiang *ofs += vi->inode_isize; 1358a765682SGao Xiang vi->xattr_isize = erofs_xattr_ibody_size(dic->i_xattr_icount); 13647e4937aSGao Xiang 1378a765682SGao Xiang inode->i_mode = le16_to_cpu(dic->i_mode); 1388a765682SGao Xiang switch (inode->i_mode & S_IFMT) { 1398a765682SGao Xiang case S_IFREG: 1408a765682SGao Xiang case S_IFDIR: 1418a765682SGao Xiang case S_IFLNK: 1428a765682SGao Xiang vi->raw_blkaddr = le32_to_cpu(dic->i_u.raw_blkaddr); 1438a765682SGao Xiang break; 1448a765682SGao Xiang case S_IFCHR: 1458a765682SGao Xiang case S_IFBLK: 14647e4937aSGao Xiang inode->i_rdev = 1478a765682SGao Xiang new_decode_dev(le32_to_cpu(dic->i_u.rdev)); 1488a765682SGao Xiang break; 1498a765682SGao Xiang case S_IFIFO: 1508a765682SGao Xiang case S_IFSOCK: 15147e4937aSGao Xiang inode->i_rdev = 0; 1528a765682SGao Xiang break; 1538a765682SGao Xiang default: 15447e4937aSGao Xiang goto bogusimode; 1558a765682SGao Xiang } 1568a765682SGao Xiang i_uid_write(inode, le16_to_cpu(dic->i_uid)); 1578a765682SGao Xiang i_gid_write(inode, le16_to_cpu(dic->i_gid)); 1588a765682SGao Xiang set_nlink(inode, le16_to_cpu(dic->i_nlink)); 15947e4937aSGao Xiang 160d3938ee2SGao Xiang /* use build time for compact inodes */ 161d3938ee2SGao Xiang inode->i_ctime.tv_sec = sbi->build_time; 162d3938ee2SGao Xiang inode->i_ctime.tv_nsec = sbi->build_time_nsec; 16347e4937aSGao Xiang 1648a765682SGao Xiang inode->i_size = le32_to_cpu(dic->i_size); 1658a765682SGao Xiang if (erofs_inode_is_data_compressed(vi->datalayout)) 1668a765682SGao Xiang nblks = le32_to_cpu(dic->i_u.compressed_blocks); 167c5aa903aSGao Xiang else if (vi->datalayout == EROFS_INODE_CHUNK_BASED) 168c5aa903aSGao Xiang vi->chunkformat = le16_to_cpu(dic->i_u.c.format); 1698a765682SGao Xiang break; 1708a765682SGao Xiang default: 1714f761fa2SGao Xiang erofs_err(inode->i_sb, 1724f761fa2SGao Xiang "unsupported on-disk inode version %u of nid %llu", 1738a765682SGao Xiang erofs_inode_version(ifmt), vi->nid); 1740dcd3c94SGao Xiang err = -EOPNOTSUPP; 1750dcd3c94SGao Xiang goto err_out; 17647e4937aSGao Xiang } 17747e4937aSGao Xiang 178c5aa903aSGao Xiang if (vi->datalayout == EROFS_INODE_CHUNK_BASED) { 179d705117dSGao Xiang if (vi->chunkformat & ~EROFS_CHUNK_FORMAT_ALL) { 180c5aa903aSGao Xiang erofs_err(inode->i_sb, 181c5aa903aSGao Xiang "unsupported chunk format %x of nid %llu", 182c5aa903aSGao Xiang vi->chunkformat, vi->nid); 183c5aa903aSGao Xiang err = -EOPNOTSUPP; 184c5aa903aSGao Xiang goto err_out; 185c5aa903aSGao Xiang } 186c5aa903aSGao Xiang vi->chunkbits = LOG_BLOCK_SIZE + 187c5aa903aSGao Xiang (vi->chunkformat & EROFS_CHUNK_FORMAT_BLKBITS_MASK); 188c5aa903aSGao Xiang } 189d3938ee2SGao Xiang inode->i_mtime.tv_sec = inode->i_ctime.tv_sec; 190d3938ee2SGao Xiang inode->i_atime.tv_sec = inode->i_ctime.tv_sec; 191d3938ee2SGao Xiang inode->i_mtime.tv_nsec = inode->i_ctime.tv_nsec; 192d3938ee2SGao Xiang inode->i_atime.tv_nsec = inode->i_ctime.tv_nsec; 193d3938ee2SGao Xiang 19406252e9cSGao Xiang inode->i_flags &= ~S_DAX; 195*e6242465SGao Xiang if (test_opt(&sbi->opt, DAX_ALWAYS) && S_ISREG(inode->i_mode) && 19606252e9cSGao Xiang vi->datalayout == EROFS_INODE_FLAT_PLAIN) 19706252e9cSGao Xiang inode->i_flags |= S_DAX; 19847e4937aSGao Xiang if (!nblks) 19947e4937aSGao Xiang /* measure inode.i_blocks as generic filesystems */ 20047e4937aSGao Xiang inode->i_blocks = roundup(inode->i_size, EROFS_BLKSIZ) >> 9; 20147e4937aSGao Xiang else 20247e4937aSGao Xiang inode->i_blocks = nblks << LOG_SECTORS_PER_BLOCK; 2030dcd3c94SGao Xiang return page; 20447e4937aSGao Xiang 20547e4937aSGao Xiang bogusimode: 2064f761fa2SGao Xiang erofs_err(inode->i_sb, "bogus i_mode (%o) @ nid %llu", 2074f761fa2SGao Xiang inode->i_mode, vi->nid); 2080dcd3c94SGao Xiang err = -EFSCORRUPTED; 2090dcd3c94SGao Xiang err_out: 21047e4937aSGao Xiang DBG_BUGON(1); 2110dcd3c94SGao Xiang kfree(copied); 2120dcd3c94SGao Xiang unlock_page(page); 2130dcd3c94SGao Xiang put_page(page); 2140dcd3c94SGao Xiang return ERR_PTR(err); 21547e4937aSGao Xiang } 21647e4937aSGao Xiang 217a2c75c81SGao Xiang static int erofs_fill_symlink(struct inode *inode, void *data, 21847e4937aSGao Xiang unsigned int m_pofs) 21947e4937aSGao Xiang { 220a5876e24SGao Xiang struct erofs_inode *vi = EROFS_I(inode); 221a2c75c81SGao Xiang char *lnk; 22247e4937aSGao Xiang 223a2c75c81SGao Xiang /* if it cannot be handled with fast symlink scheme */ 224a2c75c81SGao Xiang if (vi->datalayout != EROFS_INODE_FLAT_INLINE || 225a2c75c81SGao Xiang inode->i_size >= PAGE_SIZE) { 226a2c75c81SGao Xiang inode->i_op = &erofs_symlink_iops; 22747e4937aSGao Xiang return 0; 228a2c75c81SGao Xiang } 22947e4937aSGao Xiang 230e2c71e74SGao Xiang lnk = kmalloc(inode->i_size + 1, GFP_KERNEL); 2318d8a09b0SGao Xiang if (!lnk) 23247e4937aSGao Xiang return -ENOMEM; 23347e4937aSGao Xiang 2340dcd3c94SGao Xiang m_pofs += vi->xattr_isize; 2352d78c209SGao Xiang /* inline symlink data shouldn't cross page boundary as well */ 2368d8a09b0SGao Xiang if (m_pofs + inode->i_size > PAGE_SIZE) { 23747e4937aSGao Xiang kfree(lnk); 2384f761fa2SGao Xiang erofs_err(inode->i_sb, 2394f761fa2SGao Xiang "inline data cross block boundary @ nid %llu", 24047e4937aSGao Xiang vi->nid); 24147e4937aSGao Xiang DBG_BUGON(1); 24247e4937aSGao Xiang return -EFSCORRUPTED; 24347e4937aSGao Xiang } 24447e4937aSGao Xiang 24547e4937aSGao Xiang memcpy(lnk, data + m_pofs, inode->i_size); 24647e4937aSGao Xiang lnk[inode->i_size] = '\0'; 24747e4937aSGao Xiang 24847e4937aSGao Xiang inode->i_link = lnk; 249a2c75c81SGao Xiang inode->i_op = &erofs_fast_symlink_iops; 25047e4937aSGao Xiang return 0; 25147e4937aSGao Xiang } 25247e4937aSGao Xiang 25399634bf3SGao Xiang static int erofs_fill_inode(struct inode *inode, int isdir) 25447e4937aSGao Xiang { 255a5876e24SGao Xiang struct erofs_inode *vi = EROFS_I(inode); 25647e4937aSGao Xiang struct page *page; 25747e4937aSGao Xiang unsigned int ofs; 2580dcd3c94SGao Xiang int err = 0; 25947e4937aSGao Xiang 26047e4937aSGao Xiang trace_erofs_fill_inode(inode, isdir); 26147e4937aSGao Xiang 2620dcd3c94SGao Xiang /* read inode base data from disk */ 2630dcd3c94SGao Xiang page = erofs_read_inode(inode, &ofs); 2640dcd3c94SGao Xiang if (IS_ERR(page)) 26547e4937aSGao Xiang return PTR_ERR(page); 26684947eb6SGao Xiang 26747e4937aSGao Xiang /* setup the new inode */ 268512f9922SPratik Shinde switch (inode->i_mode & S_IFMT) { 269512f9922SPratik Shinde case S_IFREG: 27047e4937aSGao Xiang inode->i_op = &erofs_generic_iops; 271a08e67a0SHuang Jianan if (erofs_inode_is_data_compressed(vi->datalayout)) 27247e4937aSGao Xiang inode->i_fop = &generic_ro_fops; 273a08e67a0SHuang Jianan else 274a08e67a0SHuang Jianan inode->i_fop = &erofs_file_fops; 275512f9922SPratik Shinde break; 276512f9922SPratik Shinde case S_IFDIR: 27747e4937aSGao Xiang inode->i_op = &erofs_dir_iops; 27847e4937aSGao Xiang inode->i_fop = &erofs_dir_fops; 279512f9922SPratik Shinde break; 280512f9922SPratik Shinde case S_IFLNK: 2810dcd3c94SGao Xiang err = erofs_fill_symlink(inode, page_address(page), ofs); 282a2c75c81SGao Xiang if (err) 283a2c75c81SGao Xiang goto out_unlock; 28447e4937aSGao Xiang inode_nohighmem(inode); 285512f9922SPratik Shinde break; 286512f9922SPratik Shinde case S_IFCHR: 287512f9922SPratik Shinde case S_IFBLK: 288512f9922SPratik Shinde case S_IFIFO: 289512f9922SPratik Shinde case S_IFSOCK: 29047e4937aSGao Xiang inode->i_op = &erofs_generic_iops; 29147e4937aSGao Xiang init_special_inode(inode, inode->i_mode, inode->i_rdev); 29247e4937aSGao Xiang goto out_unlock; 293512f9922SPratik Shinde default: 29447e4937aSGao Xiang err = -EFSCORRUPTED; 29547e4937aSGao Xiang goto out_unlock; 29647e4937aSGao Xiang } 29747e4937aSGao Xiang 2988a765682SGao Xiang if (erofs_inode_is_data_compressed(vi->datalayout)) { 29947e4937aSGao Xiang err = z_erofs_fill_inode(inode); 30047e4937aSGao Xiang goto out_unlock; 30147e4937aSGao Xiang } 30247e4937aSGao Xiang inode->i_mapping->a_ops = &erofs_raw_access_aops; 30347e4937aSGao Xiang 30447e4937aSGao Xiang out_unlock: 30547e4937aSGao Xiang unlock_page(page); 30647e4937aSGao Xiang put_page(page); 30747e4937aSGao Xiang return err; 30847e4937aSGao Xiang } 30947e4937aSGao Xiang 31047e4937aSGao Xiang /* 31147e4937aSGao Xiang * erofs nid is 64bits, but i_ino is 'unsigned long', therefore 31247e4937aSGao Xiang * we should do more for 32-bit platform to find the right inode. 31347e4937aSGao Xiang */ 31447e4937aSGao Xiang static int erofs_ilookup_test_actor(struct inode *inode, void *opaque) 31547e4937aSGao Xiang { 31647e4937aSGao Xiang const erofs_nid_t nid = *(erofs_nid_t *)opaque; 31747e4937aSGao Xiang 318a5876e24SGao Xiang return EROFS_I(inode)->nid == nid; 31947e4937aSGao Xiang } 32047e4937aSGao Xiang 32147e4937aSGao Xiang static int erofs_iget_set_actor(struct inode *inode, void *opaque) 32247e4937aSGao Xiang { 32347e4937aSGao Xiang const erofs_nid_t nid = *(erofs_nid_t *)opaque; 32447e4937aSGao Xiang 32547e4937aSGao Xiang inode->i_ino = erofs_inode_hash(nid); 32647e4937aSGao Xiang return 0; 32747e4937aSGao Xiang } 32847e4937aSGao Xiang 32947e4937aSGao Xiang static inline struct inode *erofs_iget_locked(struct super_block *sb, 33047e4937aSGao Xiang erofs_nid_t nid) 33147e4937aSGao Xiang { 33247e4937aSGao Xiang const unsigned long hashval = erofs_inode_hash(nid); 33347e4937aSGao Xiang 33447e4937aSGao Xiang return iget5_locked(sb, hashval, erofs_ilookup_test_actor, 33547e4937aSGao Xiang erofs_iget_set_actor, &nid); 33647e4937aSGao Xiang } 33747e4937aSGao Xiang 33847e4937aSGao Xiang struct inode *erofs_iget(struct super_block *sb, 33947e4937aSGao Xiang erofs_nid_t nid, 34047e4937aSGao Xiang bool isdir) 34147e4937aSGao Xiang { 34247e4937aSGao Xiang struct inode *inode = erofs_iget_locked(sb, nid); 34347e4937aSGao Xiang 3448d8a09b0SGao Xiang if (!inode) 34547e4937aSGao Xiang return ERR_PTR(-ENOMEM); 34647e4937aSGao Xiang 34747e4937aSGao Xiang if (inode->i_state & I_NEW) { 34847e4937aSGao Xiang int err; 349a5876e24SGao Xiang struct erofs_inode *vi = EROFS_I(inode); 35047e4937aSGao Xiang 35147e4937aSGao Xiang vi->nid = nid; 35247e4937aSGao Xiang 35399634bf3SGao Xiang err = erofs_fill_inode(inode, isdir); 3548d8a09b0SGao Xiang if (!err) 35547e4937aSGao Xiang unlock_new_inode(inode); 35647e4937aSGao Xiang else { 35747e4937aSGao Xiang iget_failed(inode); 35847e4937aSGao Xiang inode = ERR_PTR(err); 35947e4937aSGao Xiang } 36047e4937aSGao Xiang } 36147e4937aSGao Xiang return inode; 36247e4937aSGao Xiang } 36347e4937aSGao Xiang 364549c7297SChristian Brauner int erofs_getattr(struct user_namespace *mnt_userns, const struct path *path, 365549c7297SChristian Brauner struct kstat *stat, u32 request_mask, 366549c7297SChristian Brauner unsigned int query_flags) 36747e4937aSGao Xiang { 36847e4937aSGao Xiang struct inode *const inode = d_inode(path->dentry); 36947e4937aSGao Xiang 370a5876e24SGao Xiang if (erofs_inode_is_data_compressed(EROFS_I(inode)->datalayout)) 37147e4937aSGao Xiang stat->attributes |= STATX_ATTR_COMPRESSED; 37247e4937aSGao Xiang 37347e4937aSGao Xiang stat->attributes |= STATX_ATTR_IMMUTABLE; 37447e4937aSGao Xiang stat->attributes_mask |= (STATX_ATTR_COMPRESSED | 37547e4937aSGao Xiang STATX_ATTR_IMMUTABLE); 37647e4937aSGao Xiang 3770d56a451SChristian Brauner generic_fillattr(&init_user_ns, inode, stat); 37847e4937aSGao Xiang return 0; 37947e4937aSGao Xiang } 38047e4937aSGao Xiang 38147e4937aSGao Xiang const struct inode_operations erofs_generic_iops = { 38247e4937aSGao Xiang .getattr = erofs_getattr, 38347e4937aSGao Xiang .listxattr = erofs_listxattr, 38447e4937aSGao Xiang .get_acl = erofs_get_acl, 385eadcd6b5SGao Xiang .fiemap = erofs_fiemap, 38647e4937aSGao Xiang }; 38747e4937aSGao Xiang 38847e4937aSGao Xiang const struct inode_operations erofs_symlink_iops = { 38947e4937aSGao Xiang .get_link = page_get_link, 39047e4937aSGao Xiang .getattr = erofs_getattr, 39147e4937aSGao Xiang .listxattr = erofs_listxattr, 39247e4937aSGao Xiang .get_acl = erofs_get_acl, 39347e4937aSGao Xiang }; 39447e4937aSGao Xiang 39547e4937aSGao Xiang const struct inode_operations erofs_fast_symlink_iops = { 39647e4937aSGao Xiang .get_link = simple_get_link, 39747e4937aSGao Xiang .getattr = erofs_getattr, 39847e4937aSGao Xiang .listxattr = erofs_listxattr, 39947e4937aSGao Xiang .get_acl = erofs_get_acl, 40047e4937aSGao Xiang }; 401