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Diffstat (limited to 'fs/erofs/internal.h')
-rw-r--r--fs/erofs/internal.h54
1 files changed, 25 insertions, 29 deletions
diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h
index efd25f3101f1..06b867d2fc3b 100644
--- a/fs/erofs/internal.h
+++ b/fs/erofs/internal.h
@@ -37,18 +37,17 @@ __printf(2, 3) void _erofs_printk(struct super_block *sb, const char *fmt, ...);
typedef u64 erofs_nid_t;
typedef u64 erofs_off_t;
-/* data type for filesystem-wide blocks number */
-typedef u32 erofs_blk_t;
+typedef u64 erofs_blk_t;
struct erofs_device_info {
char *path;
struct erofs_fscache *fscache;
struct file *file;
struct dax_device *dax_dev;
- u64 dax_part_off;
+ u64 fsoff, dax_part_off;
- u32 blocks;
- u32 mapped_blkaddr;
+ erofs_blk_t blocks;
+ erofs_blk_t uniaddr;
};
enum {
@@ -143,8 +142,8 @@ struct erofs_sb_info {
unsigned char blkszbits; /* filesystem block size in bit shift */
u32 sb_size; /* total superblock size */
- u32 build_time_nsec;
- u64 build_time;
+ u32 fixed_nsec;
+ s64 epoch;
/* what we really care is nid, rather than ino.. */
erofs_nid_t root_nid;
@@ -197,21 +196,17 @@ enum {
EROFS_ZIP_CACHE_READAROUND
};
-enum erofs_kmap_type {
- EROFS_NO_KMAP, /* don't map the buffer */
- EROFS_KMAP, /* use kmap_local_page() to map the buffer */
-};
-
struct erofs_buf {
struct address_space *mapping;
struct file *file;
+ u64 off;
struct page *page;
void *base;
};
#define __EROFS_BUF_INITIALIZER ((struct erofs_buf){ .page = NULL })
-#define erofs_blknr(sb, addr) ((erofs_blk_t)((addr) >> (sb)->s_blocksize_bits))
-#define erofs_blkoff(sb, addr) ((addr) & ((sb)->s_blocksize - 1))
+#define erofs_blknr(sb, pos) ((erofs_blk_t)((pos) >> (sb)->s_blocksize_bits))
+#define erofs_blkoff(sb, pos) ((pos) & ((sb)->s_blocksize - 1))
#define erofs_pos(sb, blk) ((erofs_off_t)(blk) << (sb)->s_blocksize_bits)
#define erofs_iblks(i) (round_up((i)->i_size, i_blocksize(i)) >> (i)->i_blkbits)
@@ -231,6 +226,7 @@ EROFS_FEATURE_FUNCS(ztailpacking, incompat, INCOMPAT_ZTAILPACKING)
EROFS_FEATURE_FUNCS(fragments, incompat, INCOMPAT_FRAGMENTS)
EROFS_FEATURE_FUNCS(dedupe, incompat, INCOMPAT_DEDUPE)
EROFS_FEATURE_FUNCS(xattr_prefixes, incompat, INCOMPAT_XATTR_PREFIXES)
+EROFS_FEATURE_FUNCS(48bit, incompat, INCOMPAT_48BIT)
EROFS_FEATURE_FUNCS(sb_chksum, compat, COMPAT_SB_CHKSUM)
EROFS_FEATURE_FUNCS(xattr_filter, compat, COMPAT_XATTR_FILTER)
@@ -250,6 +246,7 @@ struct erofs_inode {
unsigned char datalayout;
unsigned char inode_isize;
+ bool dot_omitted;
unsigned int xattr_isize;
unsigned int xattr_name_filter;
@@ -257,7 +254,7 @@ struct erofs_inode {
unsigned int *xattr_shared_xattrs;
union {
- erofs_blk_t raw_blkaddr;
+ erofs_blk_t startblk;
struct {
unsigned short chunkformat;
unsigned char chunkbits;
@@ -266,15 +263,13 @@ struct erofs_inode {
struct {
unsigned short z_advise;
unsigned char z_algorithmtype[2];
- unsigned char z_logical_clusterbits;
- unsigned long z_tailextent_headlcn;
+ unsigned char z_lclusterbits;
union {
- struct {
- erofs_off_t z_idataoff;
- unsigned short z_idata_size;
- };
- erofs_off_t z_fragmentoff;
+ u64 z_tailextent_headlcn;
+ u64 z_extents;
};
+ erofs_off_t z_fragmentoff;
+ unsigned short z_idata_size;
};
#endif /* CONFIG_EROFS_FS_ZIP */
};
@@ -320,10 +315,12 @@ static inline struct folio *erofs_grab_folio_nowait(struct address_space *as,
/* The length of extent is full */
#define EROFS_MAP_FULL_MAPPED 0x0008
/* Located in the special packed inode */
-#define EROFS_MAP_FRAGMENT 0x0010
+#define __EROFS_MAP_FRAGMENT 0x0010
/* The extent refers to partial decompressed data */
#define EROFS_MAP_PARTIAL_REF 0x0020
+#define EROFS_MAP_FRAGMENT (EROFS_MAP_MAPPED | __EROFS_MAP_FRAGMENT)
+
struct erofs_map_blocks {
struct erofs_buf buf;
@@ -385,18 +382,17 @@ void *erofs_read_metadata(struct super_block *sb, struct erofs_buf *buf,
erofs_off_t *offset, int *lengthp);
void erofs_unmap_metabuf(struct erofs_buf *buf);
void erofs_put_metabuf(struct erofs_buf *buf);
-void *erofs_bread(struct erofs_buf *buf, erofs_off_t offset,
- enum erofs_kmap_type type);
+void *erofs_bread(struct erofs_buf *buf, erofs_off_t offset, bool need_kmap);
void erofs_init_metabuf(struct erofs_buf *buf, struct super_block *sb);
void *erofs_read_metabuf(struct erofs_buf *buf, struct super_block *sb,
- erofs_off_t offset, enum erofs_kmap_type type);
+ erofs_off_t offset, bool need_kmap);
int erofs_map_dev(struct super_block *sb, struct erofs_map_dev *dev);
int erofs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len);
int erofs_map_blocks(struct inode *inode, struct erofs_map_blocks *map);
void erofs_onlinefolio_init(struct folio *folio);
void erofs_onlinefolio_split(struct folio *folio);
-void erofs_onlinefolio_end(struct folio *folio, int err);
+void erofs_onlinefolio_end(struct folio *folio, int err, bool dirty);
struct inode *erofs_iget(struct super_block *sb, erofs_nid_t nid);
int erofs_getattr(struct mnt_idmap *idmap, const struct path *path,
struct kstat *stat, u32 request_mask,
@@ -446,6 +442,7 @@ int __init erofs_init_shrinker(void);
void erofs_exit_shrinker(void);
int __init z_erofs_init_subsystem(void);
void z_erofs_exit_subsystem(void);
+int z_erofs_init_super(struct super_block *sb);
unsigned long z_erofs_shrink_scan(struct erofs_sb_info *sbi,
unsigned long nr_shrink);
int z_erofs_map_blocks_iter(struct inode *inode, struct erofs_map_blocks *map,
@@ -455,7 +452,6 @@ void z_erofs_put_gbuf(void *ptr);
int z_erofs_gbuf_growsize(unsigned int nrpages);
int __init z_erofs_gbuf_init(void);
void z_erofs_gbuf_exit(void);
-int erofs_init_managed_cache(struct super_block *sb);
int z_erofs_parse_cfgs(struct super_block *sb, struct erofs_super_block *dsb);
#else
static inline void erofs_shrinker_register(struct super_block *sb) {}
@@ -464,7 +460,7 @@ static inline int erofs_init_shrinker(void) { return 0; }
static inline void erofs_exit_shrinker(void) {}
static inline int z_erofs_init_subsystem(void) { return 0; }
static inline void z_erofs_exit_subsystem(void) {}
-static inline int erofs_init_managed_cache(struct super_block *sb) { return 0; }
+static inline int z_erofs_init_super(struct super_block *sb) { return 0; }
#endif /* !CONFIG_EROFS_FS_ZIP */
#ifdef CONFIG_EROFS_FS_BACKED_BY_FILE
generated by cgit v1.2.3 (git 2.39.0) at 2025-08-21 15:57:31 +0300