diff options
Diffstat (limited to 'fs/ext4/ext4.h')
| -rw-r--r-- | fs/ext4/ext4.h | 67 |
1 files changed, 29 insertions, 38 deletions
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 2163c1e69f2a..01d52b98f9a7 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -32,7 +32,11 @@ #include <linux/percpu_counter.h> #include <linux/ratelimit.h> #include <crypto/hash.h> -#include <linux/fscrypto.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__ @@ -679,6 +683,16 @@ struct fsxattr { #define EXT4_IOC_FSGETXATTR FS_IOC_FSGETXATTR #define EXT4_IOC_FSSETXATTR FS_IOC_FSSETXATTR +#define EXT4_IOC_SHUTDOWN _IOR ('X', 125, __u32) + +/* + * Flags for going down operation + */ +#define EXT4_GOING_FLAGS_DEFAULT 0x0 /* going down */ +#define EXT4_GOING_FLAGS_LOGFLUSH 0x1 /* flush log but not data */ +#define EXT4_GOING_FLAGS_NOLOGFLUSH 0x2 /* don't flush log nor data */ + + #if defined(__KERNEL__) && defined(CONFIG_COMPAT) /* * ioctl commands in 32 bit emulation @@ -1343,11 +1357,6 @@ struct ext4_super_block { /* Number of quota types we support */ #define EXT4_MAXQUOTAS 3 -#ifdef CONFIG_EXT4_FS_ENCRYPTION -#define EXT4_KEY_DESC_PREFIX "ext4:" -#define EXT4_KEY_DESC_PREFIX_SIZE 5 -#endif - /* * fourth extended-fs super-block data in memory */ @@ -1404,8 +1413,7 @@ struct ext4_sb_info { struct journal_s *s_journal; struct list_head s_orphan; struct mutex s_orphan_lock; - unsigned long s_resize_flags; /* Flags indicating if there - is a resizer */ + unsigned long s_ext4_flags; /* Ext4 superblock flags */ unsigned long s_commit_interval; u32 s_max_batch_time; u32 s_min_batch_time; @@ -1517,12 +1525,6 @@ struct ext4_sb_info { /* Barrier between changing inodes' journal flags and writepages ops. */ struct percpu_rw_semaphore s_journal_flag_rwsem; - - /* Encryption support */ -#ifdef CONFIG_EXT4_FS_ENCRYPTION - u8 key_prefix[EXT4_KEY_DESC_PREFIX_SIZE]; - u8 key_prefix_size; -#endif }; static inline struct ext4_sb_info *EXT4_SB(struct super_block *sb) @@ -1845,6 +1847,18 @@ static inline bool ext4_has_incompat_features(struct super_block *sb) } /* + * Superblock flags + */ +#define EXT4_FLAGS_RESIZING 0 +#define EXT4_FLAGS_SHUTDOWN 1 + +static inline int ext4_forced_shutdown(struct ext4_sb_info *sbi) +{ + return test_bit(EXT4_FLAGS_SHUTDOWN, &sbi->s_ext4_flags); +} + + +/* * Default values for user and/or group using reserved blocks */ #define EXT4_DEF_RESUID 0 @@ -2320,28 +2334,6 @@ static inline int ext4_fname_setup_filename(struct inode *dir, } static inline void ext4_fname_free_filename(struct ext4_filename *fname) { } -#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_ioctl_set_policy fscrypt_notsupp_ioctl_set_policy -#define fscrypt_ioctl_get_policy fscrypt_notsupp_ioctl_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 /* dir.c */ @@ -3034,7 +3026,7 @@ extern int ext4_inline_data_fiemap(struct inode *inode, extern int ext4_try_to_evict_inline_data(handle_t *handle, struct inode *inode, int needed); -extern void ext4_inline_data_truncate(struct inode *inode, int *has_inline); +extern int ext4_inline_data_truncate(struct inode *inode, int *has_inline); extern int ext4_convert_inline_data(struct inode *inode); @@ -3228,7 +3220,6 @@ static inline void ext4_inode_resume_unlocked_dio(struct inode *inode) EXT4_WQ_HASH_SZ]) extern wait_queue_head_t ext4__ioend_wq[EXT4_WQ_HASH_SZ]; -#define EXT4_RESIZING 0 extern int ext4_resize_begin(struct super_block *sb); extern void ext4_resize_end(struct super_block *sb); |