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Diffstat (limited to 'fs/f2fs/f2fs.h')
-rw-r--r--fs/f2fs/f2fs.h326
1 files changed, 287 insertions, 39 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 059ade83bfb1..5355be6b6755 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -116,6 +116,8 @@ typedef u32 block_t; /*
*/
typedef u32 nid_t;
+#define COMPRESS_EXT_NUM 16
+
struct f2fs_mount_info {
unsigned int opt;
int write_io_size_bits; /* Write IO size bits */
@@ -140,6 +142,12 @@ struct f2fs_mount_info {
block_t unusable_cap; /* Amount of space allowed to be
* unusable when disabling checkpoint
*/
+
+ /* For compression */
+ unsigned char compress_algorithm; /* algorithm type */
+ unsigned compress_log_size; /* cluster log size */
+ unsigned char compress_ext_cnt; /* extension count */
+ unsigned char extensions[COMPRESS_EXT_NUM][F2FS_EXTENSION_LEN]; /* extensions */
};
#define F2FS_FEATURE_ENCRYPT 0x0001
@@ -155,6 +163,7 @@ struct f2fs_mount_info {
#define F2FS_FEATURE_VERITY 0x0400
#define F2FS_FEATURE_SB_CHKSUM 0x0800
#define F2FS_FEATURE_CASEFOLD 0x1000
+#define F2FS_FEATURE_COMPRESSION 0x2000
#define __F2FS_HAS_FEATURE(raw_super, mask) \
((raw_super->feature & cpu_to_le32(mask)) != 0)
@@ -712,6 +721,12 @@ struct f2fs_inode_info {
int i_inline_xattr_size; /* inline xattr size */
struct timespec64 i_crtime; /* inode creation time */
struct timespec64 i_disk_time[4];/* inode disk times */
+
+ /* for file compress */
+ u64 i_compr_blocks; /* # of compressed blocks */
+ unsigned char i_compress_algorithm; /* algorithm type */
+ unsigned char i_log_cluster_size; /* log of cluster size */
+ unsigned int i_cluster_size; /* cluster size */
};
static inline void get_extent_info(struct extent_info *ext,
@@ -1018,6 +1033,7 @@ enum need_lock_type {
enum cp_reason_type {
CP_NO_NEEDED,
CP_NON_REGULAR,
+ CP_COMPRESSED,
CP_HARDLINK,
CP_SB_NEED_CP,
CP_WRONG_PINO,
@@ -1056,12 +1072,15 @@ struct f2fs_io_info {
block_t old_blkaddr; /* old block address before Cow */
struct page *page; /* page to be written */
struct page *encrypted_page; /* encrypted page */
+ struct page *compressed_page; /* compressed page */
struct list_head list; /* serialize IOs */
bool submitted; /* indicate IO submission */
int need_lock; /* indicate we need to lock cp_rwsem */
bool in_list; /* indicate fio is in io_list */
bool is_por; /* indicate IO is from recovery or not */
bool retry; /* need to reallocate block address */
+ int compr_blocks; /* # of compressed block addresses */
+ bool encrypted; /* indicate file is encrypted */
enum iostat_type io_type; /* io type */
struct writeback_control *io_wbc; /* writeback control */
struct bio **bio; /* bio for ipu */
@@ -1169,6 +1188,18 @@ enum fsync_mode {
FSYNC_MODE_NOBARRIER, /* fsync behaves nobarrier based on posix */
};
+/*
+ * this value is set in page as a private data which indicate that
+ * the page is atomically written, and it is in inmem_pages list.
+ */
+#define ATOMIC_WRITTEN_PAGE ((unsigned long)-1)
+#define DUMMY_WRITTEN_PAGE ((unsigned long)-2)
+
+#define IS_ATOMIC_WRITTEN_PAGE(page) \
+ (page_private(page) == (unsigned long)ATOMIC_WRITTEN_PAGE)
+#define IS_DUMMY_WRITTEN_PAGE(page) \
+ (page_private(page) == (unsigned long)DUMMY_WRITTEN_PAGE)
+
#ifdef CONFIG_FS_ENCRYPTION
#define DUMMY_ENCRYPTION_ENABLED(sbi) \
(unlikely(F2FS_OPTION(sbi).test_dummy_encryption))
@@ -1176,6 +1207,75 @@ enum fsync_mode {
#define DUMMY_ENCRYPTION_ENABLED(sbi) (0)
#endif
+/* For compression */
+enum compress_algorithm_type {
+ COMPRESS_LZO,
+ COMPRESS_LZ4,
+ COMPRESS_MAX,
+};
+
+#define COMPRESS_DATA_RESERVED_SIZE 4
+struct compress_data {
+ __le32 clen; /* compressed data size */
+ __le32 chksum; /* checksum of compressed data */
+ __le32 reserved[COMPRESS_DATA_RESERVED_SIZE]; /* reserved */
+ u8 cdata[]; /* compressed data */
+};
+
+#define COMPRESS_HEADER_SIZE (sizeof(struct compress_data))
+
+#define F2FS_COMPRESSED_PAGE_MAGIC 0xF5F2C000
+
+/* compress context */
+struct compress_ctx {
+ struct inode *inode; /* inode the context belong to */
+ pgoff_t cluster_idx; /* cluster index number */
+ unsigned int cluster_size; /* page count in cluster */
+ unsigned int log_cluster_size; /* log of cluster size */
+ struct page **rpages; /* pages store raw data in cluster */
+ unsigned int nr_rpages; /* total page number in rpages */
+ struct page **cpages; /* pages store compressed data in cluster */
+ unsigned int nr_cpages; /* total page number in cpages */
+ void *rbuf; /* virtual mapped address on rpages */
+ struct compress_data *cbuf; /* virtual mapped address on cpages */
+ size_t rlen; /* valid data length in rbuf */
+ size_t clen; /* valid data length in cbuf */
+ void *private; /* payload buffer for specified compression algorithm */
+};
+
+/* compress context for write IO path */
+struct compress_io_ctx {
+ u32 magic; /* magic number to indicate page is compressed */
+ struct inode *inode; /* inode the context belong to */
+ struct page **rpages; /* pages store raw data in cluster */
+ unsigned int nr_rpages; /* total page number in rpages */
+ refcount_t ref; /* referrence count of raw page */
+};
+
+/* decompress io context for read IO path */
+struct decompress_io_ctx {
+ u32 magic; /* magic number to indicate page is compressed */
+ struct inode *inode; /* inode the context belong to */
+ pgoff_t cluster_idx; /* cluster index number */
+ unsigned int cluster_size; /* page count in cluster */
+ unsigned int log_cluster_size; /* log of cluster size */
+ struct page **rpages; /* pages store raw data in cluster */
+ unsigned int nr_rpages; /* total page number in rpages */
+ struct page **cpages; /* pages store compressed data in cluster */
+ unsigned int nr_cpages; /* total page number in cpages */
+ struct page **tpages; /* temp pages to pad holes in cluster */
+ void *rbuf; /* virtual mapped address on rpages */
+ struct compress_data *cbuf; /* virtual mapped address on cpages */
+ size_t rlen; /* valid data length in rbuf */
+ size_t clen; /* valid data length in cbuf */
+ refcount_t ref; /* referrence count of compressed page */
+ bool failed; /* indicate IO error during decompression */
+};
+
+#define NULL_CLUSTER ((unsigned int)(~0))
+#define MIN_COMPRESS_LOG_SIZE 2
+#define MAX_COMPRESS_LOG_SIZE 8
+
struct f2fs_sb_info {
struct super_block *sb; /* pointer to VFS super block */
struct proc_dir_entry *s_proc; /* proc entry */
@@ -1291,7 +1391,10 @@ struct f2fs_sb_info {
struct f2fs_mount_info mount_opt; /* mount options */
/* for cleaning operations */
- struct mutex gc_mutex; /* mutex for GC */
+ struct rw_semaphore gc_lock; /*
+ * semaphore for GC, avoid
+ * race between GC and GC or CP
+ */
struct f2fs_gc_kthread *gc_thread; /* GC thread */
unsigned int cur_victim_sec; /* current victim section num */
unsigned int gc_mode; /* current GC state */
@@ -1327,11 +1430,11 @@ struct f2fs_sb_info {
atomic_t inline_xattr; /* # of inline_xattr inodes */
atomic_t inline_inode; /* # of inline_data inodes */
atomic_t inline_dir; /* # of inline_dentry inodes */
- atomic_t aw_cnt; /* # of atomic writes */
+ atomic_t compr_inode; /* # of compressed inodes */
+ atomic_t compr_blocks; /* # of compressed blocks */
atomic_t vw_cnt; /* # of volatile writes */
atomic_t max_aw_cnt; /* max # of atomic writes */
atomic_t max_vw_cnt; /* max # of volatile writes */
- int bg_gc; /* background gc calls */
unsigned int io_skip_bggc; /* skip background gc for in-flight IO */
unsigned int other_skip_bggc; /* skip background gc for other reasons */
unsigned int ndirty_inode[NR_INODE_TYPE]; /* # of dirty inodes */
@@ -1365,6 +1468,8 @@ struct f2fs_sb_info {
/* Precomputed FS UUID checksum for seeding other checksums */
__u32 s_chksum_seed;
+
+ struct workqueue_struct *post_read_wq; /* post read workqueue */
};
struct f2fs_private_dio {
@@ -2222,26 +2327,6 @@ static inline void *f2fs_kmem_cache_alloc(struct kmem_cache *cachep,
return entry;
}
-static inline struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi,
- int npages, bool no_fail)
-{
- struct bio *bio;
-
- if (no_fail) {
- /* No failure on bio allocation */
- bio = bio_alloc(GFP_NOIO, npages);
- if (!bio)
- bio = bio_alloc(GFP_NOIO | __GFP_NOFAIL, npages);
- return bio;
- }
- if (time_to_inject(sbi, FAULT_ALLOC_BIO)) {
- f2fs_show_injection_info(sbi, FAULT_ALLOC_BIO);
- return NULL;
- }
-
- return bio_alloc(GFP_KERNEL, npages);
-}
-
static inline bool is_idle(struct f2fs_sb_info *sbi, int type)
{
if (sbi->gc_mode == GC_URGENT)
@@ -2378,11 +2463,13 @@ static inline void f2fs_change_bit(unsigned int nr, char *addr)
/*
* On-disk inode flags (f2fs_inode::i_flags)
*/
+#define F2FS_COMPR_FL 0x00000004 /* Compress file */
#define F2FS_SYNC_FL 0x00000008 /* Synchronous updates */
#define F2FS_IMMUTABLE_FL 0x00000010 /* Immutable file */
#define F2FS_APPEND_FL 0x00000020 /* writes to file may only append */
#define F2FS_NODUMP_FL 0x00000040 /* do not dump file */
#define F2FS_NOATIME_FL 0x00000080 /* do not update atime */
+#define F2FS_NOCOMP_FL 0x00000400 /* Don't compress */
#define F2FS_INDEX_FL 0x00001000 /* hash-indexed directory */
#define F2FS_DIRSYNC_FL 0x00010000 /* dirsync behaviour (directories only) */
#define F2FS_PROJINHERIT_FL 0x20000000 /* Create with parents projid */
@@ -2391,7 +2478,7 @@ static inline void f2fs_change_bit(unsigned int nr, char *addr)
/* Flags that should be inherited by new inodes from their parent. */
#define F2FS_FL_INHERITED (F2FS_SYNC_FL | F2FS_NODUMP_FL | F2FS_NOATIME_FL | \
F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
- F2FS_CASEFOLD_FL)
+ F2FS_CASEFOLD_FL | F2FS_COMPR_FL | F2FS_NOCOMP_FL)
/* Flags that are appropriate for regular files (all but dir-specific ones). */
#define F2FS_REG_FLMASK (~(F2FS_DIRSYNC_FL | F2FS_PROJINHERIT_FL | \
@@ -2443,6 +2530,8 @@ enum {
FI_PIN_FILE, /* indicate file should not be gced */
FI_ATOMIC_REVOKE_REQUEST, /* request to drop atomic data */
FI_VERITY_IN_PROGRESS, /* building fs-verity Merkle tree */
+ FI_COMPRESSED_FILE, /* indicate file's data can be compressed */
+ FI_MMAP_FILE, /* indicate file was mmapped */
};
static inline void __mark_inode_dirty_flag(struct inode *inode,
@@ -2459,6 +2548,7 @@ static inline void __mark_inode_dirty_flag(struct inode *inode,
case FI_DATA_EXIST:
case FI_INLINE_DOTS:
case FI_PIN_FILE:
+ case FI_COMPRESSED_FILE:
f2fs_mark_inode_dirty_sync(inode, true);
}
}
@@ -2614,16 +2704,27 @@ static inline int f2fs_has_inline_xattr(struct inode *inode)
return is_inode_flag_set(inode, FI_INLINE_XATTR);
}
+static inline int f2fs_compressed_file(struct inode *inode)
+{
+ return S_ISREG(inode->i_mode) &&
+ is_inode_flag_set(inode, FI_COMPRESSED_FILE);
+}
+
static inline unsigned int addrs_per_inode(struct inode *inode)
{
unsigned int addrs = CUR_ADDRS_PER_INODE(inode) -
get_inline_xattr_addrs(inode);
- return ALIGN_DOWN(addrs, 1);
+
+ if (!f2fs_compressed_file(inode))
+ return addrs;
+ return ALIGN_DOWN(addrs, F2FS_I(inode)->i_cluster_size);
}
static inline unsigned int addrs_per_block(struct inode *inode)
{
- return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, 1);
+ if (!f2fs_compressed_file(inode))
+ return DEF_ADDRS_PER_BLOCK;
+ return ALIGN_DOWN(DEF_ADDRS_PER_BLOCK, F2FS_I(inode)->i_cluster_size);
}
static inline void *inline_xattr_addr(struct inode *inode, struct page *page)
@@ -2656,6 +2757,11 @@ static inline int f2fs_has_inline_dots(struct inode *inode)
return is_inode_flag_set(inode, FI_INLINE_DOTS);
}
+static inline int f2fs_is_mmap_file(struct inode *inode)
+{
+ return is_inode_flag_set(inode, FI_MMAP_FILE);
+}
+
static inline bool f2fs_is_pinned_file(struct inode *inode)
{
return is_inode_flag_set(inode, FI_PIN_FILE);
@@ -2783,7 +2889,8 @@ static inline bool f2fs_may_extent_tree(struct inode *inode)
struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
if (!test_opt(sbi, EXTENT_CACHE) ||
- is_inode_flag_set(inode, FI_NO_EXTENT))
+ is_inode_flag_set(inode, FI_NO_EXTENT) ||
+ is_inode_flag_set(inode, FI_COMPRESSED_FILE))
return false;
/*
@@ -2903,7 +3010,8 @@ static inline void verify_blkaddr(struct f2fs_sb_info *sbi,
static inline bool __is_valid_data_blkaddr(block_t blkaddr)
{
- if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR)
+ if (blkaddr == NEW_ADDR || blkaddr == NULL_ADDR ||
+ blkaddr == COMPRESS_ADDR)
return false;
return true;
}
@@ -3001,6 +3109,8 @@ ino_t f2fs_inode_by_name(struct inode *dir, const struct qstr *qstr,
struct page **page);
void f2fs_set_link(struct inode *dir, struct f2fs_dir_entry *de,
struct page *page, struct inode *inode);
+bool f2fs_has_enough_room(struct inode *dir, struct page *ipage,
+ struct fscrypt_name *fname);
void f2fs_update_dentry(nid_t ino, umode_t mode, struct f2fs_dentry_ptr *d,
const struct qstr *name, f2fs_hash_t name_hash,
unsigned int bit_pos);
@@ -3155,6 +3265,8 @@ void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
unsigned int val, int alloc);
void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
+int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
+int f2fs_check_write_pointer(struct f2fs_sb_info *sbi);
int f2fs_build_segment_manager(struct f2fs_sb_info *sbi);
void f2fs_destroy_segment_manager(struct f2fs_sb_info *sbi);
int __init f2fs_create_segment_manager_caches(void);
@@ -3205,10 +3317,13 @@ void f2fs_destroy_checkpoint_caches(void);
/*
* data.c
*/
-int f2fs_init_post_read_processing(void);
-void f2fs_destroy_post_read_processing(void);
+int __init f2fs_init_bioset(void);
+void f2fs_destroy_bioset(void);
+struct bio *f2fs_bio_alloc(struct f2fs_sb_info *sbi, int npages, bool no_fail);
int f2fs_init_bio_entry_cache(void);
void f2fs_destroy_bio_entry_cache(void);
+void f2fs_submit_bio(struct f2fs_sb_info *sbi,
+ struct bio *bio, enum page_type type);
void f2fs_submit_merged_write(struct f2fs_sb_info *sbi, enum page_type type);
void f2fs_submit_merged_write_cond(struct f2fs_sb_info *sbi,
struct inode *inode, struct page *page,
@@ -3245,8 +3360,14 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map,
int create, int flag);
int f2fs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len);
+int f2fs_encrypt_one_page(struct f2fs_io_info *fio);
bool f2fs_should_update_inplace(struct inode *inode, struct f2fs_io_info *fio);
bool f2fs_should_update_outplace(struct inode *inode, struct f2fs_io_info *fio);
+int f2fs_write_single_data_page(struct page *page, int *submitted,
+ struct bio **bio, sector_t *last_block,
+ struct writeback_control *wbc,
+ enum iostat_type io_type,
+ int compr_blocks);
void f2fs_invalidate_page(struct page *page, unsigned int offset,
unsigned int length);
int f2fs_release_page(struct page *page, gfp_t wait);
@@ -3256,6 +3377,10 @@ int f2fs_migrate_page(struct address_space *mapping, struct page *newpage,
#endif
bool f2fs_overwrite_io(struct inode *inode, loff_t pos, size_t len);
void f2fs_clear_page_cache_dirty_tag(struct page *page);
+int f2fs_init_post_read_processing(void);
+void f2fs_destroy_post_read_processing(void);
+int f2fs_init_post_read_wq(struct f2fs_sb_info *sbi);
+void f2fs_destroy_post_read_wq(struct f2fs_sb_info *sbi);
/*
* gc.c
@@ -3302,6 +3427,7 @@ struct f2fs_stat_info {
int nr_discard_cmd;
unsigned int undiscard_blks;
int inline_xattr, inline_inode, inline_dir, append, update, orphans;
+ int compr_inode, compr_blocks;
int aw_cnt, max_aw_cnt, vw_cnt, max_vw_cnt;
unsigned int valid_count, valid_node_count, valid_inode_count, discard_blks;
unsigned int bimodal, avg_vblocks;
@@ -3333,7 +3459,7 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
#define stat_inc_cp_count(si) ((si)->cp_count++)
#define stat_inc_bg_cp_count(si) ((si)->bg_cp_count++)
#define stat_inc_call_count(si) ((si)->call_count++)
-#define stat_inc_bggc_count(sbi) ((sbi)->bg_gc++)
+#define stat_inc_bggc_count(si) ((si)->bg_gc++)
#define stat_io_skip_bggc_count(sbi) ((sbi)->io_skip_bggc++)
#define stat_other_skip_bggc_count(sbi) ((sbi)->other_skip_bggc++)
#define stat_inc_dirty_inode(sbi, type) ((sbi)->ndirty_inode[type]++)
@@ -3372,6 +3498,20 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
if (f2fs_has_inline_dentry(inode)) \
(atomic_dec(&F2FS_I_SB(inode)->inline_dir)); \
} while (0)
+#define stat_inc_compr_inode(inode) \
+ do { \
+ if (f2fs_compressed_file(inode)) \
+ (atomic_inc(&F2FS_I_SB(inode)->compr_inode)); \
+ } while (0)
+#define stat_dec_compr_inode(inode) \
+ do { \
+ if (f2fs_compressed_file(inode)) \
+ (atomic_dec(&F2FS_I_SB(inode)->compr_inode)); \
+ } while (0)
+#define stat_add_compr_blocks(inode, blocks) \
+ (atomic_add(blocks, &F2FS_I_SB(inode)->compr_blocks))
+#define stat_sub_compr_blocks(inode, blocks) \
+ (atomic_sub(blocks, &F2FS_I_SB(inode)->compr_blocks))
#define stat_inc_meta_count(sbi, blkaddr) \
do { \
if (blkaddr < SIT_I(sbi)->sit_base_addr) \
@@ -3389,13 +3529,9 @@ static inline struct f2fs_stat_info *F2FS_STAT(struct f2fs_sb_info *sbi)
((sbi)->block_count[(curseg)->alloc_type]++)
#define stat_inc_inplace_blocks(sbi) \
(atomic_inc(&(sbi)->inplace_count))
-#define stat_inc_atomic_write(inode) \
- (atomic_inc(&F2FS_I_SB(inode)->aw_cnt))
-#define stat_dec_atomic_write(inode) \
- (atomic_dec(&F2FS_I_SB(inode)->aw_cnt))
#define stat_update_max_atomic_write(inode) \
do { \
- int cur = atomic_read(&F2FS_I_SB(inode)->aw_cnt); \
+ int cur = F2FS_I_SB(inode)->atomic_files; \
int max = atomic_read(&F2FS_I_SB(inode)->max_aw_cnt); \
if (cur > max) \
atomic_set(&F2FS_I_SB(inode)->max_aw_cnt, cur); \
@@ -3447,6 +3583,7 @@ int f2fs_build_stats(struct f2fs_sb_info *sbi);
void f2fs_destroy_stats(struct f2fs_sb_info *sbi);
void __init f2fs_create_root_stats(void);
void f2fs_destroy_root_stats(void);
+void f2fs_update_sit_info(struct f2fs_sb_info *sbi);
#else
#define stat_inc_cp_count(si) do { } while (0)
#define stat_inc_bg_cp_count(si) do { } while (0)
@@ -3456,8 +3593,8 @@ void f2fs_destroy_root_stats(void);
#define stat_other_skip_bggc_count(sbi) do { } while (0)
#define stat_inc_dirty_inode(sbi, type) do { } while (0)
#define stat_dec_dirty_inode(sbi, type) do { } while (0)
-#define stat_inc_total_hit(sb) do { } while (0)
-#define stat_inc_rbtree_node_hit(sb) do { } while (0)
+#define stat_inc_total_hit(sbi) do { } while (0)
+#define stat_inc_rbtree_node_hit(sbi) do { } while (0)
#define stat_inc_largest_node_hit(sbi) do { } while (0)
#define stat_inc_cached_node_hit(sbi) do { } while (0)
#define stat_inc_inline_xattr(inode) do { } while (0)
@@ -3466,6 +3603,10 @@ void f2fs_destroy_root_stats(void);
#define stat_dec_inline_inode(inode) do { } while (0)
#define stat_inc_inline_dir(inode) do { } while (0)
#define stat_dec_inline_dir(inode) do { } while (0)
+#define stat_inc_compr_inode(inode) do { } while (0)
+#define stat_dec_compr_inode(inode) do { } while (0)
+#define stat_add_compr_blocks(inode, blocks) do { } while (0)
+#define stat_sub_compr_blocks(inode, blocks) do { } while (0)
#define stat_inc_atomic_write(inode) do { } while (0)
#define stat_dec_atomic_write(inode) do { } while (0)
#define stat_update_max_atomic_write(inode) do { } while (0)
@@ -3485,6 +3626,7 @@ static inline int f2fs_build_stats(struct f2fs_sb_info *sbi) { return 0; }
static inline void f2fs_destroy_stats(struct f2fs_sb_info *sbi) { }
static inline void __init f2fs_create_root_stats(void) { }
static inline void f2fs_destroy_root_stats(void) { }
+static inline void update_sit_info(struct f2fs_sb_info *sbi) {}
#endif
extern const struct file_operations f2fs_dir_operations;
@@ -3513,6 +3655,7 @@ void f2fs_truncate_inline_inode(struct inode *inode,
int f2fs_read_inline_data(struct inode *inode, struct page *page);
int f2fs_convert_inline_page(struct dnode_of_data *dn, struct page *page);
int f2fs_convert_inline_inode(struct inode *inode);
+int f2fs_try_convert_inline_dir(struct inode *dir, struct dentry *dentry);
int f2fs_write_inline_data(struct inode *inode, struct page *page);
bool f2fs_recover_inline_data(struct inode *inode, struct page *npage);
struct f2fs_dir_entry *f2fs_find_in_inline_dir(struct inode *dir,
@@ -3605,7 +3748,85 @@ static inline void f2fs_set_encrypted_inode(struct inode *inode)
*/
static inline bool f2fs_post_read_required(struct inode *inode)
{
- return f2fs_encrypted_file(inode) || fsverity_active(inode);
+ return f2fs_encrypted_file(inode) || fsverity_active(inode) ||
+ f2fs_compressed_file(inode);
+}
+
+/*
+ * compress.c
+ */
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+bool f2fs_is_compressed_page(struct page *page);
+struct page *f2fs_compress_control_page(struct page *page);
+int f2fs_prepare_compress_overwrite(struct inode *inode,
+ struct page **pagep, pgoff_t index, void **fsdata);
+bool f2fs_compress_write_end(struct inode *inode, void *fsdata,
+ pgoff_t index, unsigned copied);
+void f2fs_compress_write_end_io(struct bio *bio, struct page *page);
+bool f2fs_is_compress_backend_ready(struct inode *inode);
+void f2fs_decompress_pages(struct bio *bio, struct page *page, bool verity);
+bool f2fs_cluster_is_empty(struct compress_ctx *cc);
+bool f2fs_cluster_can_merge_page(struct compress_ctx *cc, pgoff_t index);
+void f2fs_compress_ctx_add_page(struct compress_ctx *cc, struct page *page);
+int f2fs_write_multi_pages(struct compress_ctx *cc,
+ int *submitted,
+ struct writeback_control *wbc,
+ enum iostat_type io_type);
+int f2fs_is_compressed_cluster(struct inode *inode, pgoff_t index);
+int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
+ unsigned nr_pages, sector_t *last_block_in_bio,
+ bool is_readahead);
+struct decompress_io_ctx *f2fs_alloc_dic(struct compress_ctx *cc);
+void f2fs_free_dic(struct decompress_io_ctx *dic);
+void f2fs_decompress_end_io(struct page **rpages,
+ unsigned int cluster_size, bool err, bool verity);
+int f2fs_init_compress_ctx(struct compress_ctx *cc);
+void f2fs_destroy_compress_ctx(struct compress_ctx *cc);
+void f2fs_init_compress_info(struct f2fs_sb_info *sbi);
+#else
+static inline bool f2fs_is_compressed_page(struct page *page) { return false; }
+static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
+{
+ if (!f2fs_compressed_file(inode))
+ return true;
+ /* not support compression */
+ return false;
+}
+static inline struct page *f2fs_compress_control_page(struct page *page)
+{
+ WARN_ON_ONCE(1);
+ return ERR_PTR(-EINVAL);
+}
+#endif
+
+static inline void set_compress_context(struct inode *inode)
+{
+ struct f2fs_sb_info *sbi = F2FS_I_SB(inode);
+
+ F2FS_I(inode)->i_compress_algorithm =
+ F2FS_OPTION(sbi).compress_algorithm;
+ F2FS_I(inode)->i_log_cluster_size =
+ F2FS_OPTION(sbi).compress_log_size;
+ F2FS_I(inode)->i_cluster_size =
+ 1 << F2FS_I(inode)->i_log_cluster_size;
+ F2FS_I(inode)->i_flags |= F2FS_COMPR_FL;
+ set_inode_flag(inode, FI_COMPRESSED_FILE);
+ stat_inc_compr_inode(inode);
+}
+
+static inline u64 f2fs_disable_compressed_file(struct inode *inode)
+{
+ struct f2fs_inode_info *fi = F2FS_I(inode);
+
+ if (!f2fs_compressed_file(inode))
+ return 0;
+ if (fi->i_compr_blocks)
+ return fi->i_compr_blocks;
+
+ fi->i_flags &= ~F2FS_COMPR_FL;
+ clear_inode_flag(inode, FI_COMPRESSED_FILE);
+ stat_dec_compr_inode(inode);
+ return 0;
}
#define F2FS_FEATURE_FUNCS(name, flagname) \
@@ -3626,6 +3847,7 @@ F2FS_FEATURE_FUNCS(lost_found, LOST_FOUND);
F2FS_FEATURE_FUNCS(verity, VERITY);
F2FS_FEATURE_FUNCS(sb_chksum, SB_CHKSUM);
F2FS_FEATURE_FUNCS(casefold, CASEFOLD);
+F2FS_FEATURE_FUNCS(compression, COMPRESSION);
#ifdef CONFIG_BLK_DEV_ZONED
static inline bool f2fs_blkz_is_seq(struct f2fs_sb_info *sbi, int devi,
@@ -3707,6 +3929,30 @@ static inline bool f2fs_may_encrypt(struct inode *inode)
#endif
}
+static inline bool f2fs_may_compress(struct inode *inode)
+{
+ if (IS_SWAPFILE(inode) || f2fs_is_pinned_file(inode) ||
+ f2fs_is_atomic_file(inode) ||
+ f2fs_is_volatile_file(inode))
+ return false;
+ return S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode);
+}
+
+static inline void f2fs_i_compr_blocks_update(struct inode *inode,
+ u64 blocks, bool add)
+{
+ int diff = F2FS_I(inode)->i_cluster_size - blocks;
+
+ if (add) {
+ F2FS_I(inode)->i_compr_blocks += diff;
+ stat_add_compr_blocks(inode, diff);
+ } else {
+ F2FS_I(inode)->i_compr_blocks -= diff;
+ stat_sub_compr_blocks(inode, diff);
+ }
+ f2fs_mark_inode_dirty_sync(inode, true);
+}
+
static inline int block_unaligned_IO(struct inode *inode,
struct kiocb *iocb, struct iov_iter *iter)
{
@@ -3738,6 +3984,8 @@ static inline bool f2fs_force_buffered_io(struct inode *inode,
return true;
if (f2fs_is_multi_device(sbi))
return true;
+ if (f2fs_compressed_file(inode))
+ return true;
/*
* for blkzoned device, fallback direct IO to buffered IO, so
* all IOs can be serialized by log-structured write.
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-23 23:31:24 +0000