ext4.h (25c6d98fc4c245d164cf688815a7b259257ead2a) ext4.h (02f310fcf47fa9311d6ba2946a8d19e7d7d11f37)
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * ext4.h
4 *
5 * Copyright (C) 1992, 1993, 1994, 1995
6 * Remy Card (card@masi.ibp.fr)
7 * Laboratoire MASI - Institut Blaise Pascal
8 * Universite Pierre et Marie Curie (Paris VI)

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1029 * Extended attributes can be read independently of the main file
1030 * data. Taking i_mutex even when reading would cause contention
1031 * between readers of EAs and writers of regular file data, so
1032 * instead we synchronize on xattr_sem when reading or changing
1033 * EAs.
1034 */
1035 struct rw_semaphore xattr_sem;
1036
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * ext4.h
4 *
5 * Copyright (C) 1992, 1993, 1994, 1995
6 * Remy Card (card@masi.ibp.fr)
7 * Laboratoire MASI - Institut Blaise Pascal
8 * Universite Pierre et Marie Curie (Paris VI)

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1029 * Extended attributes can be read independently of the main file
1030 * data. Taking i_mutex even when reading would cause contention
1031 * between readers of EAs and writers of regular file data, so
1032 * instead we synchronize on xattr_sem when reading or changing
1033 * EAs.
1034 */
1035 struct rw_semaphore xattr_sem;
1036
1037 struct list_head i_orphan; /* unlinked but open inodes */
1037 /*
1038 * Inodes with EXT4_STATE_ORPHAN_FILE use i_orphan_idx. Otherwise
1039 * i_orphan is used.
1040 */
1041 union {
1042 struct list_head i_orphan; /* unlinked but open inodes */
1043 unsigned int i_orphan_idx; /* Index in orphan file */
1044 };
1038
1039 /* Fast commit related info */
1040
1041 struct list_head i_fc_list; /*
1042 * inodes that need fast commit
1043 * protected by sbi->s_fc_lock.
1044 */
1045

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1423 __u8 s_mkfs_time_hi;
1424 __u8 s_lastcheck_hi;
1425 __u8 s_first_error_time_hi;
1426 __u8 s_last_error_time_hi;
1427 __u8 s_first_error_errcode;
1428 __u8 s_last_error_errcode;
1429 __le16 s_encoding; /* Filename charset encoding */
1430 __le16 s_encoding_flags; /* Filename charset encoding flags */
1045
1046 /* Fast commit related info */
1047
1048 struct list_head i_fc_list; /*
1049 * inodes that need fast commit
1050 * protected by sbi->s_fc_lock.
1051 */
1052

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1430 __u8 s_mkfs_time_hi;
1431 __u8 s_lastcheck_hi;
1432 __u8 s_first_error_time_hi;
1433 __u8 s_last_error_time_hi;
1434 __u8 s_first_error_errcode;
1435 __u8 s_last_error_errcode;
1436 __le16 s_encoding; /* Filename charset encoding */
1437 __le16 s_encoding_flags; /* Filename charset encoding flags */
1431 __le32 s_reserved[95]; /* Padding to the end of the block */
1438 __le32 s_orphan_file_inum; /* Inode for tracking orphan inodes */
1439 __le32 s_reserved[94]; /* Padding to the end of the block */
1432 __le32 s_checksum; /* crc32c(superblock) */
1433};
1434
1435#define EXT4_S_ERR_LEN (EXT4_S_ERR_END - EXT4_S_ERR_START)
1436
1437#ifdef __KERNEL__
1438
1439#ifdef CONFIG_FS_ENCRYPTION

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1444
1445/* Number of quota types we support */
1446#define EXT4_MAXQUOTAS 3
1447
1448#define EXT4_ENC_UTF8_12_1 1
1449
1450/* Types of ext4 journal triggers */
1451enum ext4_journal_trigger_type {
1440 __le32 s_checksum; /* crc32c(superblock) */
1441};
1442
1443#define EXT4_S_ERR_LEN (EXT4_S_ERR_END - EXT4_S_ERR_START)
1444
1445#ifdef __KERNEL__
1446
1447#ifdef CONFIG_FS_ENCRYPTION

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1452
1453/* Number of quota types we support */
1454#define EXT4_MAXQUOTAS 3
1455
1456#define EXT4_ENC_UTF8_12_1 1
1457
1458/* Types of ext4 journal triggers */
1459enum ext4_journal_trigger_type {
1460 EXT4_JTR_ORPHAN_FILE,
1452 EXT4_JTR_NONE /* This must be the last entry for indexing to work! */
1453};
1454
1455#define EXT4_JOURNAL_TRIGGER_COUNT EXT4_JTR_NONE
1456
1457struct ext4_journal_trigger {
1458 struct jbd2_buffer_trigger_type tr_triggers;
1459 struct super_block *sb;
1460};
1461
1462static inline struct ext4_journal_trigger *EXT4_TRIGGER(
1463 struct jbd2_buffer_trigger_type *trigger)
1464{
1465 return container_of(trigger, struct ext4_journal_trigger, tr_triggers);
1466}
1467
1461 EXT4_JTR_NONE /* This must be the last entry for indexing to work! */
1462};
1463
1464#define EXT4_JOURNAL_TRIGGER_COUNT EXT4_JTR_NONE
1465
1466struct ext4_journal_trigger {
1467 struct jbd2_buffer_trigger_type tr_triggers;
1468 struct super_block *sb;
1469};
1470
1471static inline struct ext4_journal_trigger *EXT4_TRIGGER(
1472 struct jbd2_buffer_trigger_type *trigger)
1473{
1474 return container_of(trigger, struct ext4_journal_trigger, tr_triggers);
1475}
1476
1477#define EXT4_ORPHAN_BLOCK_MAGIC 0x0b10ca04
1478
1479/* Structure at the tail of orphan block */
1480struct ext4_orphan_block_tail {
1481 __le32 ob_magic;
1482 __le32 ob_checksum;
1483};
1484
1485static inline int ext4_inodes_per_orphan_block(struct super_block *sb)
1486{
1487 return (sb->s_blocksize - sizeof(struct ext4_orphan_block_tail)) /
1488 sizeof(u32);
1489}
1490
1491struct ext4_orphan_block {
1492 int ob_free_entries; /* Number of free orphan entries in block */
1493 struct buffer_head *ob_bh; /* Buffer for orphan block */
1494};
1495
1468/*
1496/*
1497 * Info about orphan file.
1498 */
1499struct ext4_orphan_info {
1500 spinlock_t of_lock;
1501 int of_blocks; /* Number of orphan blocks in a file */
1502 __u32 of_csum_seed; /* Checksum seed for orphan file */
1503 struct ext4_orphan_block *of_binfo; /* Array with info about orphan
1504 * file blocks */
1505};
1506
1507/*
1469 * fourth extended-fs super-block data in memory
1470 */
1471struct ext4_sb_info {
1472 unsigned long s_desc_size; /* Size of a group descriptor in bytes */
1473 unsigned long s_inodes_per_block;/* Number of inodes per block */
1474 unsigned long s_blocks_per_group;/* Number of blocks in a group */
1475 unsigned long s_clusters_per_group; /* Number of clusters in a group */
1476 unsigned long s_inodes_per_group;/* Number of inodes in a group */

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1514 struct proc_dir_entry *s_proc;
1515 struct kobject s_kobj;
1516 struct completion s_kobj_unregister;
1517 struct super_block *s_sb;
1518 struct buffer_head *s_mmp_bh;
1519
1520 /* Journaling */
1521 struct journal_s *s_journal;
1508 * fourth extended-fs super-block data in memory
1509 */
1510struct ext4_sb_info {
1511 unsigned long s_desc_size; /* Size of a group descriptor in bytes */
1512 unsigned long s_inodes_per_block;/* Number of inodes per block */
1513 unsigned long s_blocks_per_group;/* Number of blocks in a group */
1514 unsigned long s_clusters_per_group; /* Number of clusters in a group */
1515 unsigned long s_inodes_per_group;/* Number of inodes in a group */

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1553 struct proc_dir_entry *s_proc;
1554 struct kobject s_kobj;
1555 struct completion s_kobj_unregister;
1556 struct super_block *s_sb;
1557 struct buffer_head *s_mmp_bh;
1558
1559 /* Journaling */
1560 struct journal_s *s_journal;
1522 struct list_head s_orphan;
1523 struct mutex s_orphan_lock;
1524 unsigned long s_ext4_flags; /* Ext4 superblock flags */
1561 unsigned long s_ext4_flags; /* Ext4 superblock flags */
1562 struct mutex s_orphan_lock; /* Protects on disk list changes */
1563 struct list_head s_orphan; /* List of orphaned inodes in on disk
1564 list */
1565 struct ext4_orphan_info s_orphan_info;
1525 unsigned long s_commit_interval;
1526 u32 s_max_batch_time;
1527 u32 s_min_batch_time;
1528 struct block_device *s_journal_bdev;
1529#ifdef CONFIG_QUOTA
1530 /* Names of quota files with journalled quota */
1531 char __rcu *s_qf_names[EXT4_MAXQUOTAS];
1532 int s_jquota_fmt; /* Format of quota to use */

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1854 EXT4_STATE_DA_ALLOC_CLOSE, /* Alloc DA blks on close */
1855 EXT4_STATE_EXT_MIGRATE, /* Inode is migrating */
1856 EXT4_STATE_NEWENTRY, /* File just added to dir */
1857 EXT4_STATE_MAY_INLINE_DATA, /* may have in-inode data */
1858 EXT4_STATE_EXT_PRECACHED, /* extents have been precached */
1859 EXT4_STATE_LUSTRE_EA_INODE, /* Lustre-style ea_inode */
1860 EXT4_STATE_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
1861 EXT4_STATE_FC_COMMITTING, /* Fast commit ongoing */
1566 unsigned long s_commit_interval;
1567 u32 s_max_batch_time;
1568 u32 s_min_batch_time;
1569 struct block_device *s_journal_bdev;
1570#ifdef CONFIG_QUOTA
1571 /* Names of quota files with journalled quota */
1572 char __rcu *s_qf_names[EXT4_MAXQUOTAS];
1573 int s_jquota_fmt; /* Format of quota to use */

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1895 EXT4_STATE_DA_ALLOC_CLOSE, /* Alloc DA blks on close */
1896 EXT4_STATE_EXT_MIGRATE, /* Inode is migrating */
1897 EXT4_STATE_NEWENTRY, /* File just added to dir */
1898 EXT4_STATE_MAY_INLINE_DATA, /* may have in-inode data */
1899 EXT4_STATE_EXT_PRECACHED, /* extents have been precached */
1900 EXT4_STATE_LUSTRE_EA_INODE, /* Lustre-style ea_inode */
1901 EXT4_STATE_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
1902 EXT4_STATE_FC_COMMITTING, /* Fast commit ongoing */
1903 EXT4_STATE_ORPHAN_FILE, /* Inode orphaned in orphan file */
1862};
1863
1864#define EXT4_INODE_BIT_FNS(name, field, offset) \
1865static inline int ext4_test_inode_##name(struct inode *inode, int bit) \
1866{ \
1867 return test_bit(bit + (offset), &EXT4_I(inode)->i_##field); \
1868} \
1869static inline void ext4_set_inode_##name(struct inode *inode, int bit) \

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1955 * The reason why "FAST_COMMIT" is a compat feature is that, FS becomes
1956 * incompatible only if fast commit blocks are present in the FS. Since we
1957 * clear the journal (and thus the fast commit blocks), we don't mark FS as
1958 * incompatible. We also have a JBD2 incompat feature, which gets set when
1959 * there are fast commit blocks present in the journal.
1960 */
1961#define EXT4_FEATURE_COMPAT_FAST_COMMIT 0x0400
1962#define EXT4_FEATURE_COMPAT_STABLE_INODES 0x0800
1904};
1905
1906#define EXT4_INODE_BIT_FNS(name, field, offset) \
1907static inline int ext4_test_inode_##name(struct inode *inode, int bit) \
1908{ \
1909 return test_bit(bit + (offset), &EXT4_I(inode)->i_##field); \
1910} \
1911static inline void ext4_set_inode_##name(struct inode *inode, int bit) \

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1997 * The reason why "FAST_COMMIT" is a compat feature is that, FS becomes
1998 * incompatible only if fast commit blocks are present in the FS. Since we
1999 * clear the journal (and thus the fast commit blocks), we don't mark FS as
2000 * incompatible. We also have a JBD2 incompat feature, which gets set when
2001 * there are fast commit blocks present in the journal.
2002 */
2003#define EXT4_FEATURE_COMPAT_FAST_COMMIT 0x0400
2004#define EXT4_FEATURE_COMPAT_STABLE_INODES 0x0800
2005#define EXT4_FEATURE_COMPAT_ORPHAN_FILE 0x1000 /* Orphan file exists */
1963
1964#define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
1965#define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
1966#define EXT4_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
1967#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008
1968#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
1969#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
1970#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040

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1975 * METADATA_CSUM is set, group descriptor checksums use the same algorithm as
1976 * all other data structures' checksums. However, the METADATA_CSUM and
1977 * GDT_CSUM bits are mutually exclusive.
1978 */
1979#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
1980#define EXT4_FEATURE_RO_COMPAT_READONLY 0x1000
1981#define EXT4_FEATURE_RO_COMPAT_PROJECT 0x2000
1982#define EXT4_FEATURE_RO_COMPAT_VERITY 0x8000
2006
2007#define EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER 0x0001
2008#define EXT4_FEATURE_RO_COMPAT_LARGE_FILE 0x0002
2009#define EXT4_FEATURE_RO_COMPAT_BTREE_DIR 0x0004
2010#define EXT4_FEATURE_RO_COMPAT_HUGE_FILE 0x0008
2011#define EXT4_FEATURE_RO_COMPAT_GDT_CSUM 0x0010
2012#define EXT4_FEATURE_RO_COMPAT_DIR_NLINK 0x0020
2013#define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE 0x0040

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2018 * METADATA_CSUM is set, group descriptor checksums use the same algorithm as
2019 * all other data structures' checksums. However, the METADATA_CSUM and
2020 * GDT_CSUM bits are mutually exclusive.
2021 */
2022#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM 0x0400
2023#define EXT4_FEATURE_RO_COMPAT_READONLY 0x1000
2024#define EXT4_FEATURE_RO_COMPAT_PROJECT 0x2000
2025#define EXT4_FEATURE_RO_COMPAT_VERITY 0x8000
2026#define EXT4_FEATURE_RO_COMPAT_ORPHAN_PRESENT 0x10000 /* Orphan file may be
2027 non-empty */
1983
1984#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
1985#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
1986#define EXT4_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
1987#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
1988#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010
1989#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */
1990#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080

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2058EXT4_FEATURE_COMPAT_FUNCS(imagic_inodes, IMAGIC_INODES)
2059EXT4_FEATURE_COMPAT_FUNCS(journal, HAS_JOURNAL)
2060EXT4_FEATURE_COMPAT_FUNCS(xattr, EXT_ATTR)
2061EXT4_FEATURE_COMPAT_FUNCS(resize_inode, RESIZE_INODE)
2062EXT4_FEATURE_COMPAT_FUNCS(dir_index, DIR_INDEX)
2063EXT4_FEATURE_COMPAT_FUNCS(sparse_super2, SPARSE_SUPER2)
2064EXT4_FEATURE_COMPAT_FUNCS(fast_commit, FAST_COMMIT)
2065EXT4_FEATURE_COMPAT_FUNCS(stable_inodes, STABLE_INODES)
2028
2029#define EXT4_FEATURE_INCOMPAT_COMPRESSION 0x0001
2030#define EXT4_FEATURE_INCOMPAT_FILETYPE 0x0002
2031#define EXT4_FEATURE_INCOMPAT_RECOVER 0x0004 /* Needs recovery */
2032#define EXT4_FEATURE_INCOMPAT_JOURNAL_DEV 0x0008 /* Journal device */
2033#define EXT4_FEATURE_INCOMPAT_META_BG 0x0010
2034#define EXT4_FEATURE_INCOMPAT_EXTENTS 0x0040 /* extents support */
2035#define EXT4_FEATURE_INCOMPAT_64BIT 0x0080

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2103EXT4_FEATURE_COMPAT_FUNCS(imagic_inodes, IMAGIC_INODES)
2104EXT4_FEATURE_COMPAT_FUNCS(journal, HAS_JOURNAL)
2105EXT4_FEATURE_COMPAT_FUNCS(xattr, EXT_ATTR)
2106EXT4_FEATURE_COMPAT_FUNCS(resize_inode, RESIZE_INODE)
2107EXT4_FEATURE_COMPAT_FUNCS(dir_index, DIR_INDEX)
2108EXT4_FEATURE_COMPAT_FUNCS(sparse_super2, SPARSE_SUPER2)
2109EXT4_FEATURE_COMPAT_FUNCS(fast_commit, FAST_COMMIT)
2110EXT4_FEATURE_COMPAT_FUNCS(stable_inodes, STABLE_INODES)
2111EXT4_FEATURE_COMPAT_FUNCS(orphan_file, ORPHAN_FILE)
2066
2067EXT4_FEATURE_RO_COMPAT_FUNCS(sparse_super, SPARSE_SUPER)
2068EXT4_FEATURE_RO_COMPAT_FUNCS(large_file, LARGE_FILE)
2069EXT4_FEATURE_RO_COMPAT_FUNCS(btree_dir, BTREE_DIR)
2070EXT4_FEATURE_RO_COMPAT_FUNCS(huge_file, HUGE_FILE)
2071EXT4_FEATURE_RO_COMPAT_FUNCS(gdt_csum, GDT_CSUM)
2072EXT4_FEATURE_RO_COMPAT_FUNCS(dir_nlink, DIR_NLINK)
2073EXT4_FEATURE_RO_COMPAT_FUNCS(extra_isize, EXTRA_ISIZE)
2074EXT4_FEATURE_RO_COMPAT_FUNCS(quota, QUOTA)
2075EXT4_FEATURE_RO_COMPAT_FUNCS(bigalloc, BIGALLOC)
2076EXT4_FEATURE_RO_COMPAT_FUNCS(metadata_csum, METADATA_CSUM)
2077EXT4_FEATURE_RO_COMPAT_FUNCS(readonly, READONLY)
2078EXT4_FEATURE_RO_COMPAT_FUNCS(project, PROJECT)
2079EXT4_FEATURE_RO_COMPAT_FUNCS(verity, VERITY)
2112
2113EXT4_FEATURE_RO_COMPAT_FUNCS(sparse_super, SPARSE_SUPER)
2114EXT4_FEATURE_RO_COMPAT_FUNCS(large_file, LARGE_FILE)
2115EXT4_FEATURE_RO_COMPAT_FUNCS(btree_dir, BTREE_DIR)
2116EXT4_FEATURE_RO_COMPAT_FUNCS(huge_file, HUGE_FILE)
2117EXT4_FEATURE_RO_COMPAT_FUNCS(gdt_csum, GDT_CSUM)
2118EXT4_FEATURE_RO_COMPAT_FUNCS(dir_nlink, DIR_NLINK)
2119EXT4_FEATURE_RO_COMPAT_FUNCS(extra_isize, EXTRA_ISIZE)
2120EXT4_FEATURE_RO_COMPAT_FUNCS(quota, QUOTA)
2121EXT4_FEATURE_RO_COMPAT_FUNCS(bigalloc, BIGALLOC)
2122EXT4_FEATURE_RO_COMPAT_FUNCS(metadata_csum, METADATA_CSUM)
2123EXT4_FEATURE_RO_COMPAT_FUNCS(readonly, READONLY)
2124EXT4_FEATURE_RO_COMPAT_FUNCS(project, PROJECT)
2125EXT4_FEATURE_RO_COMPAT_FUNCS(verity, VERITY)
2126EXT4_FEATURE_RO_COMPAT_FUNCS(orphan_present, ORPHAN_PRESENT)
2080
2081EXT4_FEATURE_INCOMPAT_FUNCS(compression, COMPRESSION)
2082EXT4_FEATURE_INCOMPAT_FUNCS(filetype, FILETYPE)
2083EXT4_FEATURE_INCOMPAT_FUNCS(journal_needs_recovery, RECOVER)
2084EXT4_FEATURE_INCOMPAT_FUNCS(journal_dev, JOURNAL_DEV)
2085EXT4_FEATURE_INCOMPAT_FUNCS(meta_bg, META_BG)
2086EXT4_FEATURE_INCOMPAT_FUNCS(extents, EXTENTS)
2087EXT4_FEATURE_INCOMPAT_FUNCS(64bit, 64BIT)

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2105#define EXT3_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR
2106#define EXT3_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
2107 EXT4_FEATURE_INCOMPAT_RECOVER| \
2108 EXT4_FEATURE_INCOMPAT_META_BG)
2109#define EXT3_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \
2110 EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \
2111 EXT4_FEATURE_RO_COMPAT_BTREE_DIR)
2112
2127
2128EXT4_FEATURE_INCOMPAT_FUNCS(compression, COMPRESSION)
2129EXT4_FEATURE_INCOMPAT_FUNCS(filetype, FILETYPE)
2130EXT4_FEATURE_INCOMPAT_FUNCS(journal_needs_recovery, RECOVER)
2131EXT4_FEATURE_INCOMPAT_FUNCS(journal_dev, JOURNAL_DEV)
2132EXT4_FEATURE_INCOMPAT_FUNCS(meta_bg, META_BG)
2133EXT4_FEATURE_INCOMPAT_FUNCS(extents, EXTENTS)
2134EXT4_FEATURE_INCOMPAT_FUNCS(64bit, 64BIT)

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2152#define EXT3_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR
2153#define EXT3_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
2154 EXT4_FEATURE_INCOMPAT_RECOVER| \
2155 EXT4_FEATURE_INCOMPAT_META_BG)
2156#define EXT3_FEATURE_RO_COMPAT_SUPP (EXT4_FEATURE_RO_COMPAT_SPARSE_SUPER| \
2157 EXT4_FEATURE_RO_COMPAT_LARGE_FILE| \
2158 EXT4_FEATURE_RO_COMPAT_BTREE_DIR)
2159
2113#define EXT4_FEATURE_COMPAT_SUPP EXT4_FEATURE_COMPAT_EXT_ATTR
2160#define EXT4_FEATURE_COMPAT_SUPP (EXT4_FEATURE_COMPAT_EXT_ATTR| \
2161 EXT4_FEATURE_COMPAT_ORPHAN_FILE)
2114#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
2115 EXT4_FEATURE_INCOMPAT_RECOVER| \
2116 EXT4_FEATURE_INCOMPAT_META_BG| \
2117 EXT4_FEATURE_INCOMPAT_EXTENTS| \
2118 EXT4_FEATURE_INCOMPAT_64BIT| \
2119 EXT4_FEATURE_INCOMPAT_FLEX_BG| \
2120 EXT4_FEATURE_INCOMPAT_EA_INODE| \
2121 EXT4_FEATURE_INCOMPAT_MMP | \

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2130 EXT4_FEATURE_RO_COMPAT_DIR_NLINK | \
2131 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE | \
2132 EXT4_FEATURE_RO_COMPAT_BTREE_DIR |\
2133 EXT4_FEATURE_RO_COMPAT_HUGE_FILE |\
2134 EXT4_FEATURE_RO_COMPAT_BIGALLOC |\
2135 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
2136 EXT4_FEATURE_RO_COMPAT_QUOTA |\
2137 EXT4_FEATURE_RO_COMPAT_PROJECT |\
2162#define EXT4_FEATURE_INCOMPAT_SUPP (EXT4_FEATURE_INCOMPAT_FILETYPE| \
2163 EXT4_FEATURE_INCOMPAT_RECOVER| \
2164 EXT4_FEATURE_INCOMPAT_META_BG| \
2165 EXT4_FEATURE_INCOMPAT_EXTENTS| \
2166 EXT4_FEATURE_INCOMPAT_64BIT| \
2167 EXT4_FEATURE_INCOMPAT_FLEX_BG| \
2168 EXT4_FEATURE_INCOMPAT_EA_INODE| \
2169 EXT4_FEATURE_INCOMPAT_MMP | \

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2178 EXT4_FEATURE_RO_COMPAT_DIR_NLINK | \
2179 EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE | \
2180 EXT4_FEATURE_RO_COMPAT_BTREE_DIR |\
2181 EXT4_FEATURE_RO_COMPAT_HUGE_FILE |\
2182 EXT4_FEATURE_RO_COMPAT_BIGALLOC |\
2183 EXT4_FEATURE_RO_COMPAT_METADATA_CSUM|\
2184 EXT4_FEATURE_RO_COMPAT_QUOTA |\
2185 EXT4_FEATURE_RO_COMPAT_PROJECT |\
2138 EXT4_FEATURE_RO_COMPAT_VERITY)
2186 EXT4_FEATURE_RO_COMPAT_VERITY |\
2187 EXT4_FEATURE_RO_COMPAT_ORPHAN_PRESENT)
2139
2140#define EXTN_FEATURE_FUNCS(ver) \
2141static inline bool ext4_has_unknown_ext##ver##_compat_features(struct super_block *sb) \
2142{ \
2143 return ((EXT4_SB(sb)->s_es->s_feature_compat & \
2144 cpu_to_le32(~EXT##ver##_FEATURE_COMPAT_SUPP)) != 0); \
2145} \
2146static inline bool ext4_has_unknown_ext##ver##_ro_compat_features(struct super_block *sb) \

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2180#define EXT4_FLAGS_SHUTDOWN 1
2181#define EXT4_FLAGS_BDEV_IS_DAX 2
2182
2183static inline int ext4_forced_shutdown(struct ext4_sb_info *sbi)
2184{
2185 return test_bit(EXT4_FLAGS_SHUTDOWN, &sbi->s_ext4_flags);
2186}
2187
2188
2189#define EXTN_FEATURE_FUNCS(ver) \
2190static inline bool ext4_has_unknown_ext##ver##_compat_features(struct super_block *sb) \
2191{ \
2192 return ((EXT4_SB(sb)->s_es->s_feature_compat & \
2193 cpu_to_le32(~EXT##ver##_FEATURE_COMPAT_SUPP)) != 0); \
2194} \
2195static inline bool ext4_has_unknown_ext##ver##_ro_compat_features(struct super_block *sb) \

--- 33 unchanged lines hidden (view full) ---

2229#define EXT4_FLAGS_SHUTDOWN 1
2230#define EXT4_FLAGS_BDEV_IS_DAX 2
2231
2232static inline int ext4_forced_shutdown(struct ext4_sb_info *sbi)
2233{
2234 return test_bit(EXT4_FLAGS_SHUTDOWN, &sbi->s_ext4_flags);
2235}
2236
2188
2189/*
2190 * Default values for user and/or group using reserved blocks
2191 */
2192#define EXT4_DEF_RESUID 0
2193#define EXT4_DEF_RESGID 0
2194
2195/*
2196 * Default project ID

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3763/* verity.c */
3764extern const struct fsverity_operations ext4_verityops;
3765
3766/* orphan.c */
3767extern int ext4_orphan_add(handle_t *, struct inode *);
3768extern int ext4_orphan_del(handle_t *, struct inode *);
3769extern void ext4_orphan_cleanup(struct super_block *sb,
3770 struct ext4_super_block *es);
2237/*
2238 * Default values for user and/or group using reserved blocks
2239 */
2240#define EXT4_DEF_RESUID 0
2241#define EXT4_DEF_RESGID 0
2242
2243/*
2244 * Default project ID

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3811/* verity.c */
3812extern const struct fsverity_operations ext4_verityops;
3813
3814/* orphan.c */
3815extern int ext4_orphan_add(handle_t *, struct inode *);
3816extern int ext4_orphan_del(handle_t *, struct inode *);
3817extern void ext4_orphan_cleanup(struct super_block *sb,
3818 struct ext4_super_block *es);
3819extern void ext4_release_orphan_info(struct super_block *sb);
3820extern int ext4_init_orphan_info(struct super_block *sb);
3821extern int ext4_orphan_file_empty(struct super_block *sb);
3822extern void ext4_orphan_file_block_trigger(
3823 struct jbd2_buffer_trigger_type *triggers,
3824 struct buffer_head *bh,
3825 void *data, size_t size);
3771
3772/*
3773 * Add new method to test whether block and inode bitmaps are properly
3774 * initialized. With uninit_bg reading the block from disk is not enough
3775 * to mark the bitmap uptodate. We need to also zero-out the bitmap
3776 */
3777#define BH_BITMAP_UPTODATE BH_JBDPrivateStart
3778

--- 65 unchanged lines hidden --- 		3826
3827/*
3828 * Add new method to test whether block and inode bitmaps are properly
3829 * initialized. With uninit_bg reading the block from disk is not enough
3830 * to mark the bitmap uptodate. We need to also zero-out the bitmap
3831 */
3832#define BH_BITMAP_UPTODATE BH_JBDPrivateStart
3833

--- 65 unchanged lines hidden ---