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Diffstat (limited to 'fs/f2fs/f2fs.h')
-rw-r--r--fs/f2fs/f2fs.h325
1 files changed, 130 insertions, 195 deletions
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index ff79054c6..2effb79b5 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -22,10 +22,11 @@
#include <linux/vmalloc.h>
#include <linux/bio.h>
#include <linux/blkdev.h>
+#include <linux/fscrypto.h>
+#include <crypto/hash.h>
#ifdef CONFIG_F2FS_CHECK_FS
#define f2fs_bug_on(sbi, condition) BUG_ON(condition)
-#define f2fs_down_write(x, y) down_write_nest_lock(x, y)
#else
#define f2fs_bug_on(sbi, condition) \
do { \
@@ -34,7 +35,6 @@
set_sbi_flag(sbi, SBI_NEED_FSCK); \
} \
} while (0)
-#define f2fs_down_write(x, y) down_write(x)
#endif
/*
@@ -84,27 +84,6 @@ struct f2fs_mount_info {
#define F2FS_CLEAR_FEATURE(sb, mask) \
F2FS_SB(sb)->raw_super->feature &= ~cpu_to_le32(mask)
-#define CRCPOLY_LE 0xedb88320
-
-static inline __u32 f2fs_crc32(void *buf, size_t len)
-{
- unsigned char *p = (unsigned char *)buf;
- __u32 crc = F2FS_SUPER_MAGIC;
- int i;
-
- while (len--) {
- crc ^= *p++;
- for (i = 0; i < 8; i++)
- crc = (crc >> 1) ^ ((crc & 1) ? CRCPOLY_LE : 0);
- }
- return crc;
-}
-
-static inline bool f2fs_crc_valid(__u32 blk_crc, void *buf, size_t buf_size)
-{
- return f2fs_crc32(buf, buf_size) == blk_crc;
-}
-
/*
* For checkpoint manager
*/
@@ -183,37 +162,37 @@ struct fsync_inode_entry {
block_t last_inode; /* block address locating the last inode */
};
-#define nats_in_cursum(sum) (le16_to_cpu(sum->n_nats))
-#define sits_in_cursum(sum) (le16_to_cpu(sum->n_sits))
+#define nats_in_cursum(jnl) (le16_to_cpu(jnl->n_nats))
+#define sits_in_cursum(jnl) (le16_to_cpu(jnl->n_sits))
-#define nat_in_journal(sum, i) (sum->nat_j.entries[i].ne)
-#define nid_in_journal(sum, i) (sum->nat_j.entries[i].nid)
-#define sit_in_journal(sum, i) (sum->sit_j.entries[i].se)
-#define segno_in_journal(sum, i) (sum->sit_j.entries[i].segno)
+#define nat_in_journal(jnl, i) (jnl->nat_j.entries[i].ne)
+#define nid_in_journal(jnl, i) (jnl->nat_j.entries[i].nid)
+#define sit_in_journal(jnl, i) (jnl->sit_j.entries[i].se)
+#define segno_in_journal(jnl, i) (jnl->sit_j.entries[i].segno)
-#define MAX_NAT_JENTRIES(sum) (NAT_JOURNAL_ENTRIES - nats_in_cursum(sum))
-#define MAX_SIT_JENTRIES(sum) (SIT_JOURNAL_ENTRIES - sits_in_cursum(sum))
+#define MAX_NAT_JENTRIES(jnl) (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
+#define MAX_SIT_JENTRIES(jnl) (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
-static inline int update_nats_in_cursum(struct f2fs_summary_block *rs, int i)
+static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
{
- int before = nats_in_cursum(rs);
- rs->n_nats = cpu_to_le16(before + i);
+ int before = nats_in_cursum(journal);
+ journal->n_nats = cpu_to_le16(before + i);
return before;
}
-static inline int update_sits_in_cursum(struct f2fs_summary_block *rs, int i)
+static inline int update_sits_in_cursum(struct f2fs_journal *journal, int i)
{
- int before = sits_in_cursum(rs);
- rs->n_sits = cpu_to_le16(before + i);
+ int before = sits_in_cursum(journal);
+ journal->n_sits = cpu_to_le16(before + i);
return before;
}
-static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size,
- int type)
+static inline bool __has_cursum_space(struct f2fs_journal *journal,
+ int size, int type)
{
if (type == NAT_JOURNAL)
- return size <= MAX_NAT_JENTRIES(sum);
- return size <= MAX_SIT_JENTRIES(sum);
+ return size <= MAX_NAT_JENTRIES(journal);
+ return size <= MAX_SIT_JENTRIES(journal);
}
/*
@@ -233,12 +212,9 @@ static inline bool __has_cursum_space(struct f2fs_summary_block *sum, int size,
#define F2FS_IOC_WRITE_CHECKPOINT _IO(F2FS_IOCTL_MAGIC, 7)
#define F2FS_IOC_DEFRAGMENT _IO(F2FS_IOCTL_MAGIC, 8)
-#define F2FS_IOC_SET_ENCRYPTION_POLICY \
- _IOR('f', 19, struct f2fs_encryption_policy)
-#define F2FS_IOC_GET_ENCRYPTION_PWSALT \
- _IOW('f', 20, __u8[16])
-#define F2FS_IOC_GET_ENCRYPTION_POLICY \
- _IOW('f', 21, struct f2fs_encryption_policy)
+#define F2FS_IOC_SET_ENCRYPTION_POLICY FS_IOC_SET_ENCRYPTION_POLICY
+#define F2FS_IOC_GET_ENCRYPTION_POLICY FS_IOC_GET_ENCRYPTION_POLICY
+#define F2FS_IOC_GET_ENCRYPTION_PWSALT FS_IOC_GET_ENCRYPTION_PWSALT
/*
* should be same as XFS_IOC_GOINGDOWN.
@@ -268,25 +244,6 @@ struct f2fs_defragment {
* For INODE and NODE manager
*/
/* for directory operations */
-struct f2fs_str {
- unsigned char *name;
- u32 len;
-};
-
-struct f2fs_filename {
- const struct qstr *usr_fname;
- struct f2fs_str disk_name;
- f2fs_hash_t hash;
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- struct f2fs_str crypto_buf;
-#endif
-};
-
-#define FSTR_INIT(n, l) { .name = n, .len = l }
-#define FSTR_TO_QSTR(f) QSTR_INIT((f)->name, (f)->len)
-#define fname_name(p) ((p)->disk_name.name)
-#define fname_len(p) ((p)->disk_name.len)
-
struct f2fs_dentry_ptr {
struct inode *inode;
const void *bitmap;
@@ -354,6 +311,7 @@ struct extent_node {
struct rb_node rb_node; /* rb node located in rb-tree */
struct list_head list; /* node in global extent list of sbi */
struct extent_info ei; /* extent info */
+ struct extent_tree *et; /* extent tree pointer */
};
struct extent_tree {
@@ -382,6 +340,7 @@ struct f2fs_map_blocks {
block_t m_lblk;
unsigned int m_len;
unsigned int m_flags;
+ pgoff_t *m_next_pgofs; /* point next possible non-hole pgofs */
};
/* for flag in get_data_block */
@@ -389,6 +348,8 @@ struct f2fs_map_blocks {
#define F2FS_GET_BLOCK_DIO 1
#define F2FS_GET_BLOCK_FIEMAP 2
#define F2FS_GET_BLOCK_BMAP 3
+#define F2FS_GET_BLOCK_PRE_DIO 4
+#define F2FS_GET_BLOCK_PRE_AIO 5
/*
* i_advise uses FADVISE_XXX_BIT. We can add additional hints later.
@@ -410,15 +371,6 @@ struct f2fs_map_blocks {
#define file_enc_name(inode) is_file(inode, FADVISE_ENC_NAME_BIT)
#define file_set_enc_name(inode) set_file(inode, FADVISE_ENC_NAME_BIT)
-/* Encryption algorithms */
-#define F2FS_ENCRYPTION_MODE_INVALID 0
-#define F2FS_ENCRYPTION_MODE_AES_256_XTS 1
-#define F2FS_ENCRYPTION_MODE_AES_256_GCM 2
-#define F2FS_ENCRYPTION_MODE_AES_256_CBC 3
-#define F2FS_ENCRYPTION_MODE_AES_256_CTS 4
-
-#include "f2fs_crypto.h"
-
#define DEF_DIR_LEVEL 0
struct f2fs_inode_info {
@@ -442,13 +394,7 @@ struct f2fs_inode_info {
struct list_head dirty_list; /* linked in global dirty list */
struct list_head inmem_pages; /* inmemory pages managed by f2fs */
struct mutex inmem_lock; /* lock for inmemory pages */
-
struct extent_tree *extent_tree; /* cached extent_tree entry */
-
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- /* Encryption params */
- struct f2fs_crypt_info *i_crypt_info;
-#endif
};
static inline void get_extent_info(struct extent_info *ext,
@@ -515,6 +461,7 @@ struct f2fs_nm_info {
nid_t next_scan_nid; /* the next nid to be scanned */
unsigned int ram_thresh; /* control the memory footprint */
unsigned int ra_nid_pages; /* # of nid pages to be readaheaded */
+ unsigned int dirty_nats_ratio; /* control dirty nats ratio threshold */
/* NAT cache management */
struct radix_tree_root nat_root;/* root of the nat entry cache */
@@ -549,6 +496,8 @@ struct dnode_of_data {
unsigned int ofs_in_node; /* data offset in the node page */
bool inode_page_locked; /* inode page is locked or not */
bool node_changed; /* is node block changed */
+ char cur_level; /* level of hole node page */
+ char max_level; /* level of current page located */
block_t data_blkaddr; /* block address of the node block */
};
@@ -679,6 +628,7 @@ enum page_type {
META_FLUSH,
INMEM, /* the below types are used by tracepoints only. */
INMEM_DROP,
+ INMEM_REVOKE,
IPU,
OPU,
};
@@ -687,7 +637,8 @@ struct f2fs_io_info {
struct f2fs_sb_info *sbi; /* f2fs_sb_info pointer */
enum page_type type; /* contains DATA/NODE/META/META_FLUSH */
int rw; /* contains R/RS/W/WS with REQ_META/REQ_PRIO */
- block_t blk_addr; /* block address to be written */
+ block_t new_blkaddr; /* new block address to be written */
+ block_t old_blkaddr; /* old block address before Cow */
struct page *page; /* page to be written */
struct page *encrypted_page; /* encrypted page */
};
@@ -729,6 +680,10 @@ enum {
MAX_TIME,
};
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
+#define F2FS_KEY_DESC_PREFIX "f2fs:"
+#define F2FS_KEY_DESC_PREFIX_SIZE 5
+#endif
struct f2fs_sb_info {
struct super_block *sb; /* pointer to VFS super block */
struct proc_dir_entry *s_proc; /* proc entry */
@@ -736,6 +691,10 @@ struct f2fs_sb_info {
int valid_super_block; /* valid super block no */
int s_flag; /* flags for sbi */
+#ifdef CONFIG_F2FS_FS_ENCRYPTION
+ u8 key_prefix[F2FS_KEY_DESC_PREFIX_SIZE];
+ u8 key_prefix_size;
+#endif
/* for node-related operations */
struct f2fs_nm_info *nm_info; /* node manager */
struct inode *node_inode; /* cache node blocks */
@@ -844,8 +803,22 @@ struct f2fs_sb_info {
struct list_head s_list;
struct mutex umount_mutex;
unsigned int shrinker_run_no;
+
+ /* For write statistics */
+ u64 sectors_written_start;
+ u64 kbytes_written;
+
+ /* Reference to checksum algorithm driver via cryptoapi */
+ struct crypto_shash *s_chksum_driver;
};
+/* For write statistics. Suppose sector size is 512 bytes,
+ * and the return value is in kbytes. s is of struct f2fs_sb_info.
+ */
+#define BD_PART_WRITTEN(s) \
+(((u64)part_stat_read(s->sb->s_bdev->bd_part, sectors[1]) - \
+ s->sectors_written_start) >> 1)
+
static inline void f2fs_update_time(struct f2fs_sb_info *sbi, int type)
{
sbi->last_time[type] = jiffies;
@@ -874,6 +847,29 @@ static inline bool is_idle(struct f2fs_sb_info *sbi)
/*
* Inline functions
*/
+static inline u32 f2fs_crc32(struct f2fs_sb_info *sbi, const void *address,
+ unsigned int length)
+{
+ SHASH_DESC_ON_STACK(shash, sbi->s_chksum_driver);
+ u32 *ctx = (u32 *)shash_desc_ctx(shash);
+ int err;
+
+ shash->tfm = sbi->s_chksum_driver;
+ shash->flags = 0;
+ *ctx = F2FS_SUPER_MAGIC;
+
+ err = crypto_shash_update(shash, address, length);
+ BUG_ON(err);
+
+ return *ctx;
+}
+
+static inline bool f2fs_crc_valid(struct f2fs_sb_info *sbi, __u32 blk_crc,
+ void *buf, size_t buf_size)
+{
+ return f2fs_crc32(sbi, buf, buf_size) == blk_crc;
+}
+
static inline struct f2fs_inode_info *F2FS_I(struct inode *inode)
{
return container_of(inode, struct f2fs_inode_info, vfs_inode);
@@ -1006,7 +1002,7 @@ static inline void f2fs_unlock_op(struct f2fs_sb_info *sbi)
static inline void f2fs_lock_all(struct f2fs_sb_info *sbi)
{
- f2fs_down_write(&sbi->cp_rwsem, &sbi->cp_mutex);
+ down_write(&sbi->cp_rwsem);
}
static inline void f2fs_unlock_all(struct f2fs_sb_info *sbi)
@@ -1306,7 +1302,7 @@ static inline void f2fs_put_page(struct page *page, int unlock)
f2fs_bug_on(F2FS_P_SB(page), !PageLocked(page));
unlock_page(page);
}
- page_cache_release(page);
+ put_page(page);
}
static inline void f2fs_put_dnode(struct dnode_of_data *dn)
@@ -1525,9 +1521,9 @@ static inline int f2fs_has_inline_xattr(struct inode *inode)
return is_inode_flag_set(F2FS_I(inode), FI_INLINE_XATTR);
}
-static inline unsigned int addrs_per_inode(struct f2fs_inode_info *fi)
+static inline unsigned int addrs_per_inode(struct inode *inode)
{
- if (f2fs_has_inline_xattr(&fi->vfs_inode))
+ if (f2fs_has_inline_xattr(inode))
return DEF_ADDRS_PER_INODE - F2FS_INLINE_XATTR_ADDRS;
return DEF_ADDRS_PER_INODE;
}
@@ -1681,10 +1677,10 @@ static inline void *f2fs_kvzalloc(size_t size, gfp_t flags)
(F2FS_I(i)->i_acl_mode) : ((i)->i_mode))
/* get offset of first page in next direct node */
-#define PGOFS_OF_NEXT_DNODE(pgofs, fi) \
- ((pgofs < ADDRS_PER_INODE(fi)) ? ADDRS_PER_INODE(fi) : \
- (pgofs - ADDRS_PER_INODE(fi) + ADDRS_PER_BLOCK) / \
- ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(fi))
+#define PGOFS_OF_NEXT_DNODE(pgofs, inode) \
+ ((pgofs < ADDRS_PER_INODE(inode)) ? ADDRS_PER_INODE(inode) : \
+ (pgofs - ADDRS_PER_INODE(inode) + ADDRS_PER_BLOCK) / \
+ ADDRS_PER_BLOCK * ADDRS_PER_BLOCK + ADDRS_PER_INODE(inode))
/*
* file.c
@@ -1723,10 +1719,10 @@ struct dentry *f2fs_get_parent(struct dentry *child);
extern unsigned char f2fs_filetype_table[F2FS_FT_MAX];
void set_de_type(struct f2fs_dir_entry *, umode_t);
-struct f2fs_dir_entry *find_target_dentry(struct f2fs_filename *,
+struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *,
f2fs_hash_t, int *, struct f2fs_dentry_ptr *);
bool f2fs_fill_dentries(struct dir_context *, struct f2fs_dentry_ptr *,
- unsigned int, struct f2fs_str *);
+ unsigned int, struct fscrypt_str *);
void do_make_empty_dir(struct inode *, struct inode *,
struct f2fs_dentry_ptr *);
struct page *init_inode_metadata(struct inode *, struct inode *,
@@ -1763,6 +1759,7 @@ int f2fs_commit_super(struct f2fs_sb_info *, bool);
int f2fs_sync_fs(struct super_block *, int);
extern __printf(3, 4)
void f2fs_msg(struct super_block *, const char *, const char *, ...);
+int sanity_check_ckpt(struct f2fs_sb_info *sbi);
/*
* hash.c
@@ -1780,6 +1777,7 @@ int need_dentry_mark(struct f2fs_sb_info *, nid_t);
bool is_checkpointed_node(struct f2fs_sb_info *, nid_t);
bool need_inode_block_update(struct f2fs_sb_info *, nid_t);
void get_node_info(struct f2fs_sb_info *, nid_t, struct node_info *);
+pgoff_t get_next_page_offset(struct dnode_of_data *, pgoff_t);
int get_dnode_of_data(struct dnode_of_data *, pgoff_t, int);
int truncate_inode_blocks(struct inode *, pgoff_t);
int truncate_xattr_node(struct inode *, struct page *);
@@ -1811,7 +1809,8 @@ void destroy_node_manager_caches(void);
* segment.c
*/
void register_inmem_page(struct inode *, struct page *);
-int commit_inmem_pages(struct inode *, bool);
+void drop_inmem_pages(struct inode *);
+int commit_inmem_pages(struct inode *);
void f2fs_balance_fs(struct f2fs_sb_info *, bool);
void f2fs_balance_fs_bg(struct f2fs_sb_info *);
int f2fs_issue_flush(struct f2fs_sb_info *);
@@ -1832,16 +1831,17 @@ void write_meta_page(struct f2fs_sb_info *, struct page *);
void write_node_page(unsigned int, struct f2fs_io_info *);
void write_data_page(struct dnode_of_data *, struct f2fs_io_info *);
void rewrite_data_page(struct f2fs_io_info *);
+void __f2fs_replace_block(struct f2fs_sb_info *, struct f2fs_summary *,
+ block_t, block_t, bool, bool);
void f2fs_replace_block(struct f2fs_sb_info *, struct dnode_of_data *,
- block_t, block_t, unsigned char, bool);
+ block_t, block_t, unsigned char, bool, bool);
void allocate_data_block(struct f2fs_sb_info *, struct page *,
block_t, block_t *, struct f2fs_summary *, int);
-void f2fs_wait_on_page_writeback(struct page *, enum page_type);
+void f2fs_wait_on_page_writeback(struct page *, enum page_type, bool);
void f2fs_wait_on_encrypted_page_writeback(struct f2fs_sb_info *, block_t);
void write_data_summaries(struct f2fs_sb_info *, block_t);
void write_node_summaries(struct f2fs_sb_info *, block_t);
-int lookup_journal_in_cursum(struct f2fs_summary_block *,
- int, unsigned int, int);
+int lookup_journal_in_cursum(struct f2fs_journal *, int, unsigned int, int);
void flush_sit_entries(struct f2fs_sb_info *, struct cp_control *);
int build_segment_manager(struct f2fs_sb_info *);
void destroy_segment_manager(struct f2fs_sb_info *);
@@ -1881,11 +1881,16 @@ void destroy_checkpoint_caches(void);
* data.c
*/
void f2fs_submit_merged_bio(struct f2fs_sb_info *, enum page_type, int);
+void f2fs_submit_merged_bio_cond(struct f2fs_sb_info *, struct inode *,
+ struct page *, nid_t, enum page_type, int);
+void f2fs_flush_merged_bios(struct f2fs_sb_info *);
int f2fs_submit_page_bio(struct f2fs_io_info *);
void f2fs_submit_page_mbio(struct f2fs_io_info *);
void set_data_blkaddr(struct dnode_of_data *);
+void f2fs_update_data_blkaddr(struct dnode_of_data *, block_t);
int reserve_new_block(struct dnode_of_data *);
int f2fs_get_block(struct dnode_of_data *, pgoff_t);
+ssize_t f2fs_preallocate_blocks(struct kiocb *, struct iov_iter *);
int f2fs_reserve_block(struct dnode_of_data *, pgoff_t);
struct page *get_read_data_page(struct inode *, pgoff_t, int, bool);
struct page *find_data_page(struct inode *, pgoff_t);
@@ -1902,7 +1907,7 @@ int f2fs_release_page(struct page *, gfp_t);
*/
int start_gc_thread(struct f2fs_sb_info *);
void stop_gc_thread(struct f2fs_sb_info *);
-block_t start_bidx_of_node(unsigned int, struct f2fs_inode_info *);
+block_t start_bidx_of_node(unsigned int, struct inode *);
int f2fs_gc(struct f2fs_sb_info *, bool);
void build_gc_manager(struct f2fs_sb_info *);
@@ -2093,7 +2098,7 @@ int f2fs_convert_inline_inode(struct inode *);
int f2fs_write_inline_data(struct inode *, struct page *);
bool recover_inline_data(struct inode *, struct page *);
struct f2fs_dir_entry *find_in_inline_dir(struct inode *,
- struct f2fs_filename *, struct page **);
+ struct fscrypt_name *, struct page **);
struct f2fs_dir_entry *f2fs_parent_inline_dir(struct inode *, struct page **);
int make_empty_inline_dir(struct inode *inode, struct inode *, struct page *);
int f2fs_add_inline_entry(struct inode *, const struct qstr *, struct inode *,
@@ -2102,7 +2107,7 @@ void f2fs_delete_inline_entry(struct f2fs_dir_entry *, struct page *,
struct inode *, struct inode *);
bool f2fs_empty_inline_dir(struct inode *);
int f2fs_read_inline_dir(struct file *, struct dir_context *,
- struct f2fs_str *);
+ struct fscrypt_str *);
int f2fs_inline_data_fiemap(struct inode *,
struct fiemap_extent_info *, __u64, __u64);
@@ -2132,13 +2137,9 @@ void destroy_extent_cache(void);
/*
* crypto support
*/
-static inline int f2fs_encrypted_inode(struct inode *inode)
+static inline bool f2fs_encrypted_inode(struct inode *inode)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
return file_is_encrypt(inode);
-#else
- return 0;
-#endif
}
static inline void f2fs_set_encrypted_inode(struct inode *inode)
@@ -2150,20 +2151,12 @@ static inline void f2fs_set_encrypted_inode(struct inode *inode)
static inline bool f2fs_bio_encrypted(struct bio *bio)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
- return unlikely(bio->bi_private != NULL);
-#else
- return false;
-#endif
+ return bio->bi_private != NULL;
}
static inline int f2fs_sb_has_crypto(struct super_block *sb)
{
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
return F2FS_HAS_FEATURE(sb, F2FS_FEATURE_ENCRYPT);
-#else
- return 0;
-#endif
}
static inline bool f2fs_may_encrypt(struct inode *inode)
@@ -2177,86 +2170,28 @@ static inline bool f2fs_may_encrypt(struct inode *inode)
#endif
}
-/* crypto_policy.c */
-int f2fs_is_child_context_consistent_with_parent(struct inode *,
- struct inode *);
-int f2fs_inherit_context(struct inode *, struct inode *, struct page *);
-int f2fs_process_policy(const struct f2fs_encryption_policy *, struct inode *);
-int f2fs_get_policy(struct inode *, struct f2fs_encryption_policy *);
-
-/* crypt.c */
-extern struct kmem_cache *f2fs_crypt_info_cachep;
-bool f2fs_valid_contents_enc_mode(uint32_t);
-uint32_t f2fs_validate_encryption_key_size(uint32_t, uint32_t);
-struct f2fs_crypto_ctx *f2fs_get_crypto_ctx(struct inode *);
-void f2fs_release_crypto_ctx(struct f2fs_crypto_ctx *);
-struct page *f2fs_encrypt(struct inode *, struct page *);
-int f2fs_decrypt(struct f2fs_crypto_ctx *, struct page *);
-int f2fs_decrypt_one(struct inode *, struct page *);
-void f2fs_end_io_crypto_work(struct f2fs_crypto_ctx *, struct bio *);
-
-/* crypto_key.c */
-void f2fs_free_encryption_info(struct inode *, struct f2fs_crypt_info *);
-int _f2fs_get_encryption_info(struct inode *inode);
-
-/* crypto_fname.c */
-bool f2fs_valid_filenames_enc_mode(uint32_t);
-u32 f2fs_fname_crypto_round_up(u32, u32);
-int f2fs_fname_crypto_alloc_buffer(struct inode *, u32, struct f2fs_str *);
-int f2fs_fname_disk_to_usr(struct inode *, f2fs_hash_t *,
- const struct f2fs_str *, struct f2fs_str *);
-int f2fs_fname_usr_to_disk(struct inode *, const struct qstr *,
- struct f2fs_str *);
-
-#ifdef CONFIG_F2FS_FS_ENCRYPTION
-void f2fs_restore_and_release_control_page(struct page **);
-void f2fs_restore_control_page(struct page *);
-
-int __init f2fs_init_crypto(void);
-int f2fs_crypto_initialize(void);
-void f2fs_exit_crypto(void);
-
-int f2fs_has_encryption_key(struct inode *);
-
-static inline int f2fs_get_encryption_info(struct inode *inode)
-{
- struct f2fs_crypt_info *ci = F2FS_I(inode)->i_crypt_info;
-
- if (!ci ||
- (ci->ci_keyring_key &&
- (ci->ci_keyring_key->flags & ((1 << KEY_FLAG_INVALIDATED) |
- (1 << KEY_FLAG_REVOKED) |
- (1 << KEY_FLAG_DEAD)))))
- return _f2fs_get_encryption_info(inode);
- return 0;
-}
-
-void f2fs_fname_crypto_free_buffer(struct f2fs_str *);
-int f2fs_fname_setup_filename(struct inode *, const struct qstr *,
- int lookup, struct f2fs_filename *);
-void f2fs_fname_free_filename(struct f2fs_filename *);
-#else
-static inline void f2fs_restore_and_release_control_page(struct page **p) { }
-static inline void f2fs_restore_control_page(struct page *p) { }
-
-static inline int __init f2fs_init_crypto(void) { return 0; }
-static inline void f2fs_exit_crypto(void) { }
-
-static inline int f2fs_has_encryption_key(struct inode *i) { return 0; }
-static inline int f2fs_get_encryption_info(struct inode *i) { return 0; }
-static inline void f2fs_fname_crypto_free_buffer(struct f2fs_str *p) { }
-
-static inline int f2fs_fname_setup_filename(struct inode *dir,
- const struct qstr *iname,
- int lookup, struct f2fs_filename *fname)
-{
- memset(fname, 0, sizeof(struct f2fs_filename));
- fname->usr_fname = iname;
- fname->disk_name.name = (unsigned char *)iname->name;
- fname->disk_name.len = iname->len;
- return 0;
-}
-
-static inline void f2fs_fname_free_filename(struct f2fs_filename *fname) { }
+#ifndef CONFIG_F2FS_FS_ENCRYPTION
+#define fscrypt_set_d_op(i)
+#define fscrypt_get_ctx fscrypt_notsupp_get_ctx
+#define fscrypt_release_ctx fscrypt_notsupp_release_ctx
+#define fscrypt_encrypt_page fscrypt_notsupp_encrypt_page
+#define fscrypt_decrypt_page fscrypt_notsupp_decrypt_page
+#define fscrypt_decrypt_bio_pages fscrypt_notsupp_decrypt_bio_pages
+#define fscrypt_pullback_bio_page fscrypt_notsupp_pullback_bio_page
+#define fscrypt_restore_control_page fscrypt_notsupp_restore_control_page
+#define fscrypt_zeroout_range fscrypt_notsupp_zeroout_range
+#define fscrypt_process_policy fscrypt_notsupp_process_policy
+#define fscrypt_get_policy fscrypt_notsupp_get_policy
+#define fscrypt_has_permitted_context fscrypt_notsupp_has_permitted_context
+#define fscrypt_inherit_context fscrypt_notsupp_inherit_context
+#define fscrypt_get_encryption_info fscrypt_notsupp_get_encryption_info
+#define fscrypt_put_encryption_info fscrypt_notsupp_put_encryption_info
+#define fscrypt_setup_filename fscrypt_notsupp_setup_filename
+#define fscrypt_free_filename fscrypt_notsupp_free_filename
+#define fscrypt_fname_encrypted_size fscrypt_notsupp_fname_encrypted_size
+#define fscrypt_fname_alloc_buffer fscrypt_notsupp_fname_alloc_buffer
+#define fscrypt_fname_free_buffer fscrypt_notsupp_fname_free_buffer
+#define fscrypt_fname_disk_to_usr fscrypt_notsupp_fname_disk_to_usr
+#define fscrypt_fname_usr_to_disk fscrypt_notsupp_fname_usr_to_disk
#endif
#endif
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-28 05:29:47 +0000