1ae98043fSRyusuke Konishi /* SPDX-License-Identifier: GPL-2.0+ */ 265b4643dSRyusuke Konishi /* 394ee1d91SRyusuke Konishi * NILFS local header file. 465b4643dSRyusuke Konishi * 565b4643dSRyusuke Konishi * Copyright (C) 2005-2008 Nippon Telegraph and Telephone Corporation. 665b4643dSRyusuke Konishi * 74b420ab4SRyusuke Konishi * Written by Koji Sato and Ryusuke Konishi. 865b4643dSRyusuke Konishi */ 965b4643dSRyusuke Konishi 1065b4643dSRyusuke Konishi #ifndef _NILFS_H 1165b4643dSRyusuke Konishi #define _NILFS_H 1265b4643dSRyusuke Konishi 1365b4643dSRyusuke Konishi #include <linux/kernel.h> 1465b4643dSRyusuke Konishi #include <linux/buffer_head.h> 1565b4643dSRyusuke Konishi #include <linux/spinlock.h> 1665b4643dSRyusuke Konishi #include <linux/blkdev.h> 17e63e88bcSRyusuke Konishi #include <linux/nilfs2_api.h> 18e63e88bcSRyusuke Konishi #include <linux/nilfs2_ondisk.h> 1965b4643dSRyusuke Konishi #include "the_nilfs.h" 2065b4643dSRyusuke Konishi #include "bmap.h" 2165b4643dSRyusuke Konishi 22f5974c8fSVyacheslav Dubeyko /** 23f5974c8fSVyacheslav Dubeyko * struct nilfs_inode_info - nilfs inode data in memory 24f5974c8fSVyacheslav Dubeyko * @i_flags: inode flags 25f5974c8fSVyacheslav Dubeyko * @i_state: dynamic state flags 26f5974c8fSVyacheslav Dubeyko * @i_bmap: pointer on i_bmap_data 27f5974c8fSVyacheslav Dubeyko * @i_bmap_data: raw block mapping 28f5974c8fSVyacheslav Dubeyko * @i_xattr: <TODO> 29f5974c8fSVyacheslav Dubeyko * @i_dir_start_lookup: page index of last successful search 30f5974c8fSVyacheslav Dubeyko * @i_cno: checkpoint number for GC inode 31e897be17SRyusuke Konishi * @i_assoc_inode: associated inode (B-tree node cache holder or back pointer) 32f5974c8fSVyacheslav Dubeyko * @i_dirty: list for connecting dirty files 33f5974c8fSVyacheslav Dubeyko * @xattr_sem: semaphore for extended attributes processing 34f5974c8fSVyacheslav Dubeyko * @i_bh: buffer contains disk inode 35f5974c8fSVyacheslav Dubeyko * @i_root: root object of the current filesystem tree 36f5974c8fSVyacheslav Dubeyko * @vfs_inode: VFS inode object 3765b4643dSRyusuke Konishi */ 3865b4643dSRyusuke Konishi struct nilfs_inode_info { 3965b4643dSRyusuke Konishi __u32 i_flags; 4065b4643dSRyusuke Konishi unsigned long i_state; /* Dynamic state flags */ 4165b4643dSRyusuke Konishi struct nilfs_bmap *i_bmap; 4205d0e94bSRyusuke Konishi struct nilfs_bmap i_bmap_data; 4365b4643dSRyusuke Konishi __u64 i_xattr; /* sector_t ??? */ 4465b4643dSRyusuke Konishi __u32 i_dir_start_lookup; 4565b4643dSRyusuke Konishi __u64 i_cno; /* check point number for GC inode */ 46e897be17SRyusuke Konishi struct inode *i_assoc_inode; 4765b4643dSRyusuke Konishi struct list_head i_dirty; /* List for connecting dirty files */ 4865b4643dSRyusuke Konishi 4965b4643dSRyusuke Konishi #ifdef CONFIG_NILFS_XATTR 5065b4643dSRyusuke Konishi /* 5165b4643dSRyusuke Konishi * Extended attributes can be read independently of the main file 5265b4643dSRyusuke Konishi * data. Taking i_sem even when reading would cause contention 5365b4643dSRyusuke Konishi * between readers of EAs and writers of regular file data, so 5465b4643dSRyusuke Konishi * instead we synchronize on xattr_sem when reading or changing 5565b4643dSRyusuke Konishi * EAs. 5665b4643dSRyusuke Konishi */ 5765b4643dSRyusuke Konishi struct rw_semaphore xattr_sem; 5865b4643dSRyusuke Konishi #endif 59076a378bSRyusuke Konishi struct buffer_head *i_bh; /* 60076a378bSRyusuke Konishi * i_bh contains a new or dirty 61076a378bSRyusuke Konishi * disk inode. 62076a378bSRyusuke Konishi */ 634d8d9293SRyusuke Konishi struct nilfs_root *i_root; 6465b4643dSRyusuke Konishi struct inode vfs_inode; 6565b4643dSRyusuke Konishi }; 6665b4643dSRyusuke Konishi 6765b4643dSRyusuke Konishi static inline struct nilfs_inode_info *NILFS_I(const struct inode *inode) 6865b4643dSRyusuke Konishi { 6965b4643dSRyusuke Konishi return container_of(inode, struct nilfs_inode_info, vfs_inode); 7065b4643dSRyusuke Konishi } 7165b4643dSRyusuke Konishi 7265b4643dSRyusuke Konishi static inline struct nilfs_inode_info * 7365b4643dSRyusuke Konishi NILFS_BMAP_I(const struct nilfs_bmap *bmap) 7465b4643dSRyusuke Konishi { 7505d0e94bSRyusuke Konishi return container_of(bmap, struct nilfs_inode_info, i_bmap_data); 7665b4643dSRyusuke Konishi } 7765b4643dSRyusuke Konishi 7865b4643dSRyusuke Konishi /* 7965b4643dSRyusuke Konishi * Dynamic state flags of NILFS on-memory inode (i_state) 8065b4643dSRyusuke Konishi */ 8165b4643dSRyusuke Konishi enum { 8265b4643dSRyusuke Konishi NILFS_I_NEW = 0, /* Inode is newly created */ 8365b4643dSRyusuke Konishi NILFS_I_DIRTY, /* The file is dirty */ 8465b4643dSRyusuke Konishi NILFS_I_QUEUED, /* inode is in dirty_files list */ 85076a378bSRyusuke Konishi NILFS_I_BUSY, /* 86076a378bSRyusuke Konishi * Inode is grabbed by a segment 87076a378bSRyusuke Konishi * constructor 88076a378bSRyusuke Konishi */ 8965b4643dSRyusuke Konishi NILFS_I_COLLECTED, /* All dirty blocks are collected */ 9065b4643dSRyusuke Konishi NILFS_I_UPDATED, /* The file has been written back */ 91b9f66140SAndreas Rohner NILFS_I_INODE_SYNC, /* dsync is not allowed for inode */ 9265b4643dSRyusuke Konishi NILFS_I_BMAP, /* has bmap and btnode_cache */ 9365b4643dSRyusuke Konishi NILFS_I_GCINODE, /* inode for GC, on memory only */ 94e897be17SRyusuke Konishi NILFS_I_BTNC, /* inode for btree node cache */ 956e211930SRyusuke Konishi NILFS_I_SHADOW, /* inode for shadowed page cache */ 9665b4643dSRyusuke Konishi }; 9765b4643dSRyusuke Konishi 9865b4643dSRyusuke Konishi /* 99b2ac86e1SJiro SEKIBA * commit flags for nilfs_commit_super and nilfs_sync_super 100b2ac86e1SJiro SEKIBA */ 101b2ac86e1SJiro SEKIBA enum { 102b2ac86e1SJiro SEKIBA NILFS_SB_COMMIT = 0, /* Commit a super block alternately */ 103b2ac86e1SJiro SEKIBA NILFS_SB_COMMIT_ALL /* Commit both super blocks */ 104b2ac86e1SJiro SEKIBA }; 105b2ac86e1SJiro SEKIBA 106b2ac86e1SJiro SEKIBA /* 10765b4643dSRyusuke Konishi * Macros to check inode numbers 10865b4643dSRyusuke Konishi */ 10965b4643dSRyusuke Konishi #define NILFS_MDT_INO_BITS \ 1104ce5c342SRyusuke Konishi (BIT(NILFS_DAT_INO) | BIT(NILFS_CPFILE_INO) | \ 1114ce5c342SRyusuke Konishi BIT(NILFS_SUFILE_INO) | BIT(NILFS_IFILE_INO) | \ 1124ce5c342SRyusuke Konishi BIT(NILFS_ATIME_INO) | BIT(NILFS_SKETCH_INO)) 11365b4643dSRyusuke Konishi 1144ce5c342SRyusuke Konishi #define NILFS_SYS_INO_BITS (BIT(NILFS_ROOT_INO) | NILFS_MDT_INO_BITS) 11565b4643dSRyusuke Konishi 116e3154e97SRyusuke Konishi #define NILFS_FIRST_INO(sb) (((struct the_nilfs *)sb->s_fs_info)->ns_first_ino) 11765b4643dSRyusuke Konishi 11865b4643dSRyusuke Konishi #define NILFS_MDT_INODE(sb, ino) \ 119e2fec219SRyusuke Konishi ((ino) < NILFS_USER_INO && (NILFS_MDT_INO_BITS & BIT(ino))) 12065b4643dSRyusuke Konishi #define NILFS_VALID_INODE(sb, ino) \ 121e2fec219SRyusuke Konishi ((ino) >= NILFS_FIRST_INO(sb) || \ 122e2fec219SRyusuke Konishi ((ino) < NILFS_USER_INO && (NILFS_SYS_INO_BITS & BIT(ino)))) 12365b4643dSRyusuke Konishi 124*bb76c6c2SRyusuke Konishi #define NILFS_PRIVATE_INODE(ino) ({ \ 125*bb76c6c2SRyusuke Konishi ino_t __ino = (ino); \ 126*bb76c6c2SRyusuke Konishi ((__ino) < NILFS_USER_INO && (__ino) != NILFS_ROOT_INO && \ 127*bb76c6c2SRyusuke Konishi (__ino) != NILFS_SKETCH_INO); }) 128*bb76c6c2SRyusuke Konishi 12965b4643dSRyusuke Konishi /** 13065b4643dSRyusuke Konishi * struct nilfs_transaction_info: context information for synchronization 13165b4643dSRyusuke Konishi * @ti_magic: Magic number 13265b4643dSRyusuke Konishi * @ti_save: Backup of journal_info field of task_struct 13365b4643dSRyusuke Konishi * @ti_flags: Flags 13465b4643dSRyusuke Konishi * @ti_count: Nest level 13565b4643dSRyusuke Konishi */ 13665b4643dSRyusuke Konishi struct nilfs_transaction_info { 13765b4643dSRyusuke Konishi u32 ti_magic; 13865b4643dSRyusuke Konishi void *ti_save; 139076a378bSRyusuke Konishi /* 140076a378bSRyusuke Konishi * This should never be used. If it happens, 141076a378bSRyusuke Konishi * one of other filesystems has a bug. 142076a378bSRyusuke Konishi */ 14365b4643dSRyusuke Konishi unsigned short ti_flags; 14465b4643dSRyusuke Konishi unsigned short ti_count; 14565b4643dSRyusuke Konishi }; 14665b4643dSRyusuke Konishi 14765b4643dSRyusuke Konishi /* ti_magic */ 14865b4643dSRyusuke Konishi #define NILFS_TI_MAGIC 0xd9e392fb 14965b4643dSRyusuke Konishi 15065b4643dSRyusuke Konishi /* ti_flags */ 15165b4643dSRyusuke Konishi #define NILFS_TI_DYNAMIC_ALLOC 0x0001 /* Allocated from slab */ 152076a378bSRyusuke Konishi #define NILFS_TI_SYNC 0x0002 /* 153076a378bSRyusuke Konishi * Force to construct segment at the 154076a378bSRyusuke Konishi * end of transaction. 155076a378bSRyusuke Konishi */ 15665b4643dSRyusuke Konishi #define NILFS_TI_GC 0x0004 /* GC context */ 15765b4643dSRyusuke Konishi #define NILFS_TI_COMMIT 0x0008 /* Change happened or not */ 15865b4643dSRyusuke Konishi #define NILFS_TI_WRITER 0x0010 /* Constructor context */ 15965b4643dSRyusuke Konishi 16065b4643dSRyusuke Konishi 16165b4643dSRyusuke Konishi int nilfs_transaction_begin(struct super_block *, 16265b4643dSRyusuke Konishi struct nilfs_transaction_info *, int); 16347420c79SRyusuke Konishi int nilfs_transaction_commit(struct super_block *); 16447420c79SRyusuke Konishi void nilfs_transaction_abort(struct super_block *); 16565b4643dSRyusuke Konishi 16665b4643dSRyusuke Konishi static inline void nilfs_set_transaction_flag(unsigned int flag) 16765b4643dSRyusuke Konishi { 16865b4643dSRyusuke Konishi struct nilfs_transaction_info *ti = current->journal_info; 16965b4643dSRyusuke Konishi 17065b4643dSRyusuke Konishi ti->ti_flags |= flag; 17165b4643dSRyusuke Konishi } 17265b4643dSRyusuke Konishi 17365b4643dSRyusuke Konishi static inline int nilfs_test_transaction_flag(unsigned int flag) 17465b4643dSRyusuke Konishi { 17565b4643dSRyusuke Konishi struct nilfs_transaction_info *ti = current->journal_info; 17665b4643dSRyusuke Konishi 17765b4643dSRyusuke Konishi if (ti == NULL || ti->ti_magic != NILFS_TI_MAGIC) 17865b4643dSRyusuke Konishi return 0; 17965b4643dSRyusuke Konishi return !!(ti->ti_flags & flag); 18065b4643dSRyusuke Konishi } 18165b4643dSRyusuke Konishi 18265b4643dSRyusuke Konishi static inline int nilfs_doing_gc(void) 18365b4643dSRyusuke Konishi { 18465b4643dSRyusuke Konishi return nilfs_test_transaction_flag(NILFS_TI_GC); 18565b4643dSRyusuke Konishi } 18665b4643dSRyusuke Konishi 18765b4643dSRyusuke Konishi static inline int nilfs_doing_construction(void) 18865b4643dSRyusuke Konishi { 18965b4643dSRyusuke Konishi return nilfs_test_transaction_flag(NILFS_TI_WRITER); 19065b4643dSRyusuke Konishi } 19165b4643dSRyusuke Konishi 19265b4643dSRyusuke Konishi /* 19365b4643dSRyusuke Konishi * function prototype 19465b4643dSRyusuke Konishi */ 19565b4643dSRyusuke Konishi #ifdef CONFIG_NILFS_POSIX_ACL 19665b4643dSRyusuke Konishi #error "NILFS: not yet supported POSIX ACL" 19765b4643dSRyusuke Konishi extern int nilfs_acl_chmod(struct inode *); 19865b4643dSRyusuke Konishi extern int nilfs_init_acl(struct inode *, struct inode *); 19965b4643dSRyusuke Konishi #else 20065b4643dSRyusuke Konishi static inline int nilfs_acl_chmod(struct inode *inode) 20165b4643dSRyusuke Konishi { 20265b4643dSRyusuke Konishi return 0; 20365b4643dSRyusuke Konishi } 20465b4643dSRyusuke Konishi 20565b4643dSRyusuke Konishi static inline int nilfs_init_acl(struct inode *inode, struct inode *dir) 20665b4643dSRyusuke Konishi { 2075924e6ecSRyusuke Konishi if (S_ISLNK(inode->i_mode)) 2085924e6ecSRyusuke Konishi return 0; 2095924e6ecSRyusuke Konishi 21065b4643dSRyusuke Konishi inode->i_mode &= ~current_umask(); 21165b4643dSRyusuke Konishi return 0; 21265b4643dSRyusuke Konishi } 21365b4643dSRyusuke Konishi #endif 21465b4643dSRyusuke Konishi 21565b4643dSRyusuke Konishi #define NILFS_ATIME_DISABLE 21665b4643dSRyusuke Konishi 217b253a3e4SRyusuke Konishi /* Flags that should be inherited by new inodes from their parent. */ 218b253a3e4SRyusuke Konishi #define NILFS_FL_INHERITED \ 219b253a3e4SRyusuke Konishi (FS_SECRM_FL | FS_UNRM_FL | FS_COMPR_FL | FS_SYNC_FL | \ 220b253a3e4SRyusuke Konishi FS_IMMUTABLE_FL | FS_APPEND_FL | FS_NODUMP_FL | FS_NOATIME_FL |\ 221b253a3e4SRyusuke Konishi FS_COMPRBLK_FL | FS_NOCOMP_FL | FS_NOTAIL_FL | FS_DIRSYNC_FL) 222b253a3e4SRyusuke Konishi 223b253a3e4SRyusuke Konishi /* Mask out flags that are inappropriate for the given type of inode. */ 224b253a3e4SRyusuke Konishi static inline __u32 nilfs_mask_flags(umode_t mode, __u32 flags) 225b253a3e4SRyusuke Konishi { 226b253a3e4SRyusuke Konishi if (S_ISDIR(mode)) 227b253a3e4SRyusuke Konishi return flags; 228b253a3e4SRyusuke Konishi else if (S_ISREG(mode)) 229b253a3e4SRyusuke Konishi return flags & ~(FS_DIRSYNC_FL | FS_TOPDIR_FL); 230b253a3e4SRyusuke Konishi else 231b253a3e4SRyusuke Konishi return flags & (FS_NODUMP_FL | FS_NOATIME_FL); 232b253a3e4SRyusuke Konishi } 233b253a3e4SRyusuke Konishi 23465b4643dSRyusuke Konishi /* dir.c */ 2356f133c97SMatthew Wilcox (Oracle) int nilfs_add_link(struct dentry *, struct inode *); 2366f133c97SMatthew Wilcox (Oracle) ino_t nilfs_inode_by_name(struct inode *, const struct qstr *); 2376f133c97SMatthew Wilcox (Oracle) int nilfs_make_empty(struct inode *, struct inode *); 2386f133c97SMatthew Wilcox (Oracle) struct nilfs_dir_entry *nilfs_find_entry(struct inode *, const struct qstr *, 2396f133c97SMatthew Wilcox (Oracle) struct folio **); 2406f133c97SMatthew Wilcox (Oracle) int nilfs_delete_entry(struct nilfs_dir_entry *, struct folio *); 2416f133c97SMatthew Wilcox (Oracle) int nilfs_empty_dir(struct inode *); 2426f133c97SMatthew Wilcox (Oracle) struct nilfs_dir_entry *nilfs_dotdot(struct inode *, struct folio **); 2436f133c97SMatthew Wilcox (Oracle) void nilfs_set_link(struct inode *, struct nilfs_dir_entry *, 2446f133c97SMatthew Wilcox (Oracle) struct folio *, struct inode *); 24565b4643dSRyusuke Konishi 24665b4643dSRyusuke Konishi /* file.c */ 24702c24a82SJosef Bacik extern int nilfs_sync_file(struct file *, loff_t, loff_t, int); 24865b4643dSRyusuke Konishi 24965b4643dSRyusuke Konishi /* ioctl.c */ 2507c7c436eSMiklos Szeredi int nilfs_fileattr_get(struct dentry *dentry, struct fileattr *m); 2518782a9aeSChristian Brauner int nilfs_fileattr_set(struct mnt_idmap *idmap, 2527c7c436eSMiklos Szeredi struct dentry *dentry, struct fileattr *fa); 2537a946193SRyusuke Konishi long nilfs_ioctl(struct file *, unsigned int, unsigned long); 254828b1c50SRyusuke Konishi long nilfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg); 2554f6b8288SRyusuke Konishi int nilfs_ioctl_prepare_clean_segments(struct the_nilfs *, struct nilfs_argv *, 2564f6b8288SRyusuke Konishi void **); 25765b4643dSRyusuke Konishi 25865b4643dSRyusuke Konishi /* inode.c */ 259be667377SRyusuke Konishi void nilfs_inode_add_blocks(struct inode *inode, int n); 260be667377SRyusuke Konishi void nilfs_inode_sub_blocks(struct inode *inode, int n); 261c6e49e3fSAl Viro extern struct inode *nilfs_new_inode(struct inode *, umode_t); 26265b4643dSRyusuke Konishi extern int nilfs_get_block(struct inode *, sector_t, struct buffer_head *, int); 26365b4643dSRyusuke Konishi extern void nilfs_set_inode_flags(struct inode *); 26465b4643dSRyusuke Konishi extern int nilfs_read_inode_common(struct inode *, struct nilfs_inode *); 2659cced6a5SRyusuke Konishi void nilfs_write_inode_common(struct inode *inode, 2669cced6a5SRyusuke Konishi struct nilfs_inode *raw_inode); 267032dbb3bSRyusuke Konishi struct inode *nilfs_ilookup(struct super_block *sb, struct nilfs_root *root, 268032dbb3bSRyusuke Konishi unsigned long ino); 269f1e89c86SRyusuke Konishi struct inode *nilfs_iget_locked(struct super_block *sb, struct nilfs_root *root, 270f1e89c86SRyusuke Konishi unsigned long ino); 2714d8d9293SRyusuke Konishi struct inode *nilfs_iget(struct super_block *sb, struct nilfs_root *root, 2724d8d9293SRyusuke Konishi unsigned long ino); 273263d90ceSRyusuke Konishi extern struct inode *nilfs_iget_for_gc(struct super_block *sb, 274263d90ceSRyusuke Konishi unsigned long ino, __u64 cno); 275e897be17SRyusuke Konishi int nilfs_attach_btree_node_cache(struct inode *inode); 276e897be17SRyusuke Konishi void nilfs_detach_btree_node_cache(struct inode *inode); 2776e211930SRyusuke Konishi struct inode *nilfs_iget_for_shadow(struct inode *inode); 278b9f66140SAndreas Rohner extern void nilfs_update_inode(struct inode *, struct buffer_head *, int); 27965b4643dSRyusuke Konishi extern void nilfs_truncate(struct inode *); 2806fd1e5c9SAl Viro extern void nilfs_evict_inode(struct inode *); 281c1632a0fSChristian Brauner extern int nilfs_setattr(struct mnt_idmap *, struct dentry *, 282549c7297SChristian Brauner struct iattr *); 2832d1b399bSMarco Stornelli extern void nilfs_write_failed(struct address_space *mapping, loff_t to); 2844609e1f1SChristian Brauner int nilfs_permission(struct mnt_idmap *idmap, struct inode *inode, 285549c7297SChristian Brauner int mask); 286bcbc8c64SRyusuke Konishi int nilfs_load_inode_block(struct inode *inode, struct buffer_head **pbh); 28765b4643dSRyusuke Konishi extern int nilfs_inode_dirty(struct inode *); 2880c6c44cbSRyusuke Konishi int nilfs_set_file_dirty(struct inode *inode, unsigned int nr_dirty); 289b9f66140SAndreas Rohner extern int __nilfs_mark_inode_dirty(struct inode *, int); 290aa385729SChristoph Hellwig extern void nilfs_dirty_inode(struct inode *, int flags); 291622daaffSRyusuke Konishi int nilfs_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo, 292622daaffSRyusuke Konishi __u64 start, __u64 len); 293b9f66140SAndreas Rohner static inline int nilfs_mark_inode_dirty(struct inode *inode) 294b9f66140SAndreas Rohner { 295b9f66140SAndreas Rohner return __nilfs_mark_inode_dirty(inode, I_DIRTY); 296b9f66140SAndreas Rohner } 297b9f66140SAndreas Rohner static inline int nilfs_mark_inode_dirty_sync(struct inode *inode) 298b9f66140SAndreas Rohner { 299b9f66140SAndreas Rohner return __nilfs_mark_inode_dirty(inode, I_DIRTY_SYNC); 300b9f66140SAndreas Rohner } 30165b4643dSRyusuke Konishi 30265b4643dSRyusuke Konishi /* super.c */ 30365b4643dSRyusuke Konishi extern struct inode *nilfs_alloc_inode(struct super_block *); 304cae3d4caSRyusuke Konishi 3052987a4cfSJoe Perches __printf(2, 3) 3062987a4cfSJoe Perches void __nilfs_msg(struct super_block *sb, const char *fmt, ...); 307a66dfb0aSRyusuke Konishi extern __printf(3, 4) 308cae3d4caSRyusuke Konishi void __nilfs_error(struct super_block *sb, const char *function, 309cae3d4caSRyusuke Konishi const char *fmt, ...); 310cae3d4caSRyusuke Konishi 311cae3d4caSRyusuke Konishi #ifdef CONFIG_PRINTK 312cae3d4caSRyusuke Konishi 313a66dfb0aSRyusuke Konishi #define nilfs_msg(sb, level, fmt, ...) \ 3142987a4cfSJoe Perches __nilfs_msg(sb, level fmt, ##__VA_ARGS__) 315cae3d4caSRyusuke Konishi #define nilfs_error(sb, fmt, ...) \ 316cae3d4caSRyusuke Konishi __nilfs_error(sb, __func__, fmt, ##__VA_ARGS__) 317cae3d4caSRyusuke Konishi 318cae3d4caSRyusuke Konishi #else 319cae3d4caSRyusuke Konishi 320a66dfb0aSRyusuke Konishi #define nilfs_msg(sb, level, fmt, ...) \ 321d6517debSRyusuke Konishi do { \ 3222987a4cfSJoe Perches no_printk(level fmt, ##__VA_ARGS__); \ 323d6517debSRyusuke Konishi (void)(sb); \ 324d6517debSRyusuke Konishi } while (0) 325cae3d4caSRyusuke Konishi #define nilfs_error(sb, fmt, ...) \ 326cae3d4caSRyusuke Konishi do { \ 327cae3d4caSRyusuke Konishi no_printk(fmt, ##__VA_ARGS__); \ 328cae3d4caSRyusuke Konishi __nilfs_error(sb, "", " "); \ 329cae3d4caSRyusuke Konishi } while (0) 330cae3d4caSRyusuke Konishi 331cae3d4caSRyusuke Konishi #endif /* CONFIG_PRINTK */ 332cae3d4caSRyusuke Konishi 333a1d0747aSJoe Perches #define nilfs_crit(sb, fmt, ...) \ 334a1d0747aSJoe Perches nilfs_msg(sb, KERN_CRIT, fmt, ##__VA_ARGS__) 335a1d0747aSJoe Perches #define nilfs_err(sb, fmt, ...) \ 336a1d0747aSJoe Perches nilfs_msg(sb, KERN_ERR, fmt, ##__VA_ARGS__) 337a1d0747aSJoe Perches #define nilfs_warn(sb, fmt, ...) \ 338a1d0747aSJoe Perches nilfs_msg(sb, KERN_WARNING, fmt, ##__VA_ARGS__) 339a1d0747aSJoe Perches #define nilfs_info(sb, fmt, ...) \ 340a1d0747aSJoe Perches nilfs_msg(sb, KERN_INFO, fmt, ##__VA_ARGS__) 341a1d0747aSJoe Perches 34265b4643dSRyusuke Konishi extern struct nilfs_super_block * 343e339ad31SRyusuke Konishi nilfs_read_super_block(struct super_block *, u64, int, struct buffer_head **); 34436defdd9SEric Sandeen extern int nilfs_store_magic(struct super_block *sb, 34536defdd9SEric Sandeen struct nilfs_super_block *sbp); 346c5ca48aaSRyusuke Konishi extern int nilfs_check_feature_compatibility(struct super_block *, 347c5ca48aaSRyusuke Konishi struct nilfs_super_block *); 34860f46b7eSRyusuke Konishi extern void nilfs_set_log_cursor(struct nilfs_super_block *, 34960f46b7eSRyusuke Konishi struct the_nilfs *); 350f7545144SRyusuke Konishi struct nilfs_super_block **nilfs_prepare_super(struct super_block *sb, 351b2ac86e1SJiro SEKIBA int flip); 352f7545144SRyusuke Konishi int nilfs_commit_super(struct super_block *sb, int flag); 353f7545144SRyusuke Konishi int nilfs_cleanup_super(struct super_block *sb); 3544e33f9eaSRyusuke Konishi int nilfs_resize_fs(struct super_block *sb, __u64 newsize); 355f7545144SRyusuke Konishi int nilfs_attach_checkpoint(struct super_block *sb, __u64 cno, int curr_mnt, 3564d8d9293SRyusuke Konishi struct nilfs_root **root); 357032dbb3bSRyusuke Konishi int nilfs_checkpoint_is_mounted(struct super_block *sb, __u64 cno); 35865b4643dSRyusuke Konishi 35965b4643dSRyusuke Konishi /* gcinode.c */ 36065b4643dSRyusuke Konishi int nilfs_gccache_submit_read_data(struct inode *, sector_t, sector_t, __u64, 36165b4643dSRyusuke Konishi struct buffer_head **); 36265b4643dSRyusuke Konishi int nilfs_gccache_submit_read_node(struct inode *, sector_t, __u64, 36365b4643dSRyusuke Konishi struct buffer_head **); 36465b4643dSRyusuke Konishi int nilfs_gccache_wait_and_mark_dirty(struct buffer_head *); 365263d90ceSRyusuke Konishi int nilfs_init_gcinode(struct inode *inode); 366263d90ceSRyusuke Konishi void nilfs_remove_all_gcinodes(struct the_nilfs *nilfs); 36765b4643dSRyusuke Konishi 368dd70edbdSVyacheslav Dubeyko /* sysfs.c */ 369dd70edbdSVyacheslav Dubeyko int __init nilfs_sysfs_init(void); 370dd70edbdSVyacheslav Dubeyko void nilfs_sysfs_exit(void); 371dd70edbdSVyacheslav Dubeyko int nilfs_sysfs_create_device_group(struct super_block *); 372dd70edbdSVyacheslav Dubeyko void nilfs_sysfs_delete_device_group(struct the_nilfs *); 373dd70edbdSVyacheslav Dubeyko int nilfs_sysfs_create_snapshot_group(struct nilfs_root *); 374dd70edbdSVyacheslav Dubeyko void nilfs_sysfs_delete_snapshot_group(struct nilfs_root *); 375dd70edbdSVyacheslav Dubeyko 37665b4643dSRyusuke Konishi /* 37765b4643dSRyusuke Konishi * Inodes and files operations 37865b4643dSRyusuke Konishi */ 379828c0950SAlexey Dobriyan extern const struct file_operations nilfs_dir_operations; 3806e1d5dccSAlexey Dobriyan extern const struct inode_operations nilfs_file_inode_operations; 381828c0950SAlexey Dobriyan extern const struct file_operations nilfs_file_operations; 3827f09410bSAlexey Dobriyan extern const struct address_space_operations nilfs_aops; 3836e1d5dccSAlexey Dobriyan extern const struct inode_operations nilfs_dir_inode_operations; 3846e1d5dccSAlexey Dobriyan extern const struct inode_operations nilfs_special_inode_operations; 3856e1d5dccSAlexey Dobriyan extern const struct inode_operations nilfs_symlink_inode_operations; 38665b4643dSRyusuke Konishi 38765b4643dSRyusuke Konishi /* 38865b4643dSRyusuke Konishi * filesystem type 38965b4643dSRyusuke Konishi */ 39065b4643dSRyusuke Konishi extern struct file_system_type nilfs_fs_type; 39165b4643dSRyusuke Konishi 39265b4643dSRyusuke Konishi 39365b4643dSRyusuke Konishi #endif /* _NILFS_H */ 394