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Diffstat (limited to 'fs/ext4/ext4.h')
-rw-r--r--fs/ext4/ext4.h84
1 files changed, 23 insertions, 61 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 9ebde0cd632e..4e091eae38b1 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* ext4.h
*
@@ -33,17 +34,15 @@
#include <linux/percpu_counter.h>
#include <linux/ratelimit.h>
#include <crypto/hash.h>
-#ifdef CONFIG_EXT4_FS_ENCRYPTION
-#include <linux/fscrypt_supp.h>
-#else
-#include <linux/fscrypt_notsupp.h>
-#endif
#include <linux/falloc.h>
#include <linux/percpu-rwsem.h>
#ifdef __KERNEL__
#include <linux/compat.h>
#endif
+#define __FS_HAS_ENCRYPTION IS_ENABLED(CONFIG_EXT4_FS_ENCRYPTION)
+#include <linux/fscrypt.h>
+
/*
* The fourth extended filesystem constants/structures
*/
@@ -545,8 +544,8 @@ struct ext4_new_group_data {
__u64 inode_table;
__u32 blocks_count;
__u16 reserved_blocks;
- __u16 unused;
- __u32 free_blocks_count;
+ __u16 mdata_blocks;
+ __u32 free_clusters_count;
};
/* Indexes used to index group tables in ext4_new_group_data */
@@ -644,43 +643,6 @@ enum {
#define EXT4_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
#define EXT4_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
-#ifndef FS_IOC_FSGETXATTR
-/* Until the uapi changes get merged for project quota... */
-
-#define FS_IOC_FSGETXATTR _IOR('X', 31, struct fsxattr)
-#define FS_IOC_FSSETXATTR _IOW('X', 32, struct fsxattr)
-
-/*
- * Structure for FS_IOC_FSGETXATTR and FS_IOC_FSSETXATTR.
- */
-struct fsxattr {
- __u32 fsx_xflags; /* xflags field value (get/set) */
- __u32 fsx_extsize; /* extsize field value (get/set)*/
- __u32 fsx_nextents; /* nextents field value (get) */
- __u32 fsx_projid; /* project identifier (get/set) */
- unsigned char fsx_pad[12];
-};
-
-/*
- * Flags for the fsx_xflags field
- */
-#define FS_XFLAG_REALTIME 0x00000001 /* data in realtime volume */
-#define FS_XFLAG_PREALLOC 0x00000002 /* preallocated file extents */
-#define FS_XFLAG_IMMUTABLE 0x00000008 /* file cannot be modified */
-#define FS_XFLAG_APPEND 0x00000010 /* all writes append */
-#define FS_XFLAG_SYNC 0x00000020 /* all writes synchronous */
-#define FS_XFLAG_NOATIME 0x00000040 /* do not update access time */
-#define FS_XFLAG_NODUMP 0x00000080 /* do not include in backups */
-#define FS_XFLAG_RTINHERIT 0x00000100 /* create with rt bit set */
-#define FS_XFLAG_PROJINHERIT 0x00000200 /* create with parents projid */
-#define FS_XFLAG_NOSYMLINKS 0x00000400 /* disallow symlink creation */
-#define FS_XFLAG_EXTSIZE 0x00000800 /* extent size allocator hint */
-#define FS_XFLAG_EXTSZINHERIT 0x00001000 /* inherit inode extent size */
-#define FS_XFLAG_NODEFRAG 0x00002000 /* do not defragment */
-#define FS_XFLAG_FILESTREAM 0x00004000 /* use filestream allocator */
-#define FS_XFLAG_HASATTR 0x80000000 /* no DIFLAG for this */
-#endif /* !defined(FS_IOC_FSGETXATTR) */
-
#define EXT4_IOC_FSGETXATTR FS_IOC_FSGETXATTR
#define EXT4_IOC_FSSETXATTR FS_IOC_FSSETXATTR
@@ -838,13 +800,11 @@ static inline void ext4_decode_extra_time(struct timespec *time, __le32 extra)
{
if (unlikely(sizeof(time->tv_sec) > 4 &&
(extra & cpu_to_le32(EXT4_EPOCH_MASK)))) {
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4,20,0)
+
+#if 1
/* Handle legacy encoding of pre-1970 dates with epoch
- * bits 1,1. We assume that by kernel version 4.20,
- * everyone will have run fsck over the affected
- * filesystems to correct the problem. (This
- * backwards compatibility may be removed before this
- * time, at the discretion of the ext4 developers.)
+ * bits 1,1. (This backwards compatibility may be removed
+ * at the discretion of the ext4 developers.)
*/
u64 extra_bits = le32_to_cpu(extra) & EXT4_EPOCH_MASK;
if (extra_bits == 3 && ((time->tv_sec) & 0x80000000) != 0)
@@ -961,7 +921,7 @@ struct ext4_inode_info {
/*
* i_block_group is the number of the block group which contains
* this file's inode. Constant across the lifetime of the inode,
- * it is ued for making block allocation decisions - we try to
+ * it is used for making block allocation decisions - we try to
* place a file's data blocks near its inode block, and new inodes
* near to their parent directory's inode.
*/
@@ -1049,10 +1009,8 @@ struct ext4_inode_info {
ext4_group_t i_last_alloc_group;
/* allocation reservation info for delalloc */
- /* In case of bigalloc, these refer to clusters rather than blocks */
+ /* In case of bigalloc, this refer to clusters rather than blocks */
unsigned int i_reserved_data_blocks;
- unsigned int i_reserved_meta_blocks;
- unsigned int i_allocated_meta_blocks;
ext4_lblk_t i_da_metadata_calc_last_lblock;
int i_da_metadata_calc_len;
@@ -1396,8 +1354,6 @@ struct ext4_sb_info {
int s_first_ino;
unsigned int s_inode_readahead_blks;
unsigned int s_inode_goal;
- spinlock_t s_next_gen_lock;
- u32 s_next_generation;
u32 s_hash_seed[4];
int s_def_hash_version;
int s_hash_unsigned; /* 3 if hash should be signed, 0 if not */
@@ -1530,6 +1486,7 @@ struct ext4_sb_info {
/* Barrier between changing inodes' journal flags and writepages ops. */
struct percpu_rw_semaphore s_journal_flag_rwsem;
+ struct dax_device *s_daxdev;
};
static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb)
@@ -1569,6 +1526,7 @@ enum {
nolocking */
EXT4_STATE_MAY_INLINE_DATA, /* may have in-inode data */
EXT4_STATE_EXT_PRECACHED, /* extents have been precached */
+ EXT4_STATE_LUSTRE_EA_INODE, /* Lustre-style ea_inode */
};
#define EXT4_INODE_BIT_FNS(name, field, offset) \
@@ -2022,7 +1980,8 @@ static inline __le16 ext4_rec_len_to_disk(unsigned len, unsigned blocksize)
#define is_dx(dir) (ext4_has_feature_dir_index((dir)->i_sb) && \
ext4_test_inode_flag((dir), EXT4_INODE_INDEX))
-#define EXT4_DIR_LINK_MAX(dir) (!is_dx(dir) && (dir)->i_nlink >= EXT4_LINK_MAX)
+#define EXT4_DIR_LINK_MAX(dir) unlikely((dir)->i_nlink >= EXT4_LINK_MAX && \
+ !(ext4_has_feature_dir_nlink((dir)->i_sb) && is_dx(dir)))
#define EXT4_DIR_LINK_EMPTY(dir) ((dir)->i_nlink == 2 || (dir)->i_nlink == 1)
/* Legal values for the dx_root hash_version field: */
@@ -2462,6 +2421,8 @@ extern void ext4_process_freed_data(struct super_block *sb, tid_t commit_tid);
int ext4_inode_is_fast_symlink(struct inode *inode);
struct buffer_head *ext4_getblk(handle_t *, struct inode *, ext4_lblk_t, int);
struct buffer_head *ext4_bread(handle_t *, struct inode *, ext4_lblk_t, int);
+int ext4_bread_batch(struct inode *inode, ext4_lblk_t block, int bh_count,
+ bool wait, struct buffer_head **bhs);
int ext4_get_block_unwritten(struct inode *inode, sector_t iblock,
struct buffer_head *bh_result, int create);
int ext4_get_block(struct inode *inode, sector_t iblock,
@@ -2514,9 +2475,6 @@ extern void ext4_da_update_reserve_space(struct inode *inode,
int used, int quota_claim);
extern int ext4_issue_zeroout(struct inode *inode, ext4_lblk_t lblk,
ext4_fsblk_t pblk, ext4_lblk_t len);
-extern int ext4_get_next_extent(struct inode *inode, ext4_lblk_t lblk,
- unsigned int map_len,
- struct extent_status *result);
/* indirect.c */
extern int ext4_ind_map_blocks(handle_t *handle, struct inode *inode,
@@ -3047,6 +3005,10 @@ extern struct buffer_head *ext4_get_first_inline_block(struct inode *inode,
extern int ext4_inline_data_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo,
int *has_inline, __u64 start, __u64 len);
+
+struct iomap;
+extern int ext4_inline_data_iomap(struct inode *inode, struct iomap *iomap);
+
extern int ext4_try_to_evict_inline_data(handle_t *handle,
struct inode *inode,
int needed);
@@ -3074,7 +3036,7 @@ extern int ext4_handle_dirty_dirent_node(handle_t *handle,
struct inode *inode,
struct buffer_head *bh);
#define S_SHIFT 12
-static const unsigned char ext4_type_by_mode[S_IFMT >> S_SHIFT] = {
+static const unsigned char ext4_type_by_mode[(S_IFMT >> S_SHIFT) + 1] = {
[S_IFREG >> S_SHIFT] = EXT4_FT_REG_FILE,
[S_IFDIR >> S_SHIFT] = EXT4_FT_DIR,
[S_IFCHR >> S_SHIFT] = EXT4_FT_CHRDEV,
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-07 01:45:18 +0000