diff options
Diffstat (limited to 'fs/bcachefs/fs.h')
| -rw-r--r-- | fs/bcachefs/fs.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/fs/bcachefs/fs.h b/fs/bcachefs/fs.h index 21fb0ef1ec2f..b9dc87da87f5 100644 --- a/fs/bcachefs/fs.h +++ b/fs/bcachefs/fs.h @@ -29,6 +29,30 @@ struct bch_inode_info { #define to_bch_ei(_inode) \ container_of_or_null(_inode, struct bch_inode_info, v) +static inline int ptrcmp(void *l, void *r) +{ + return (l > r) - (l < r); +} + +#define __bch2_lock_inodes(_lock, ...) \ +do { \ + struct bch_inode_info *a[] = { NULL, __VA_ARGS__ }; \ + unsigned i; \ + \ + bubble_sort(&a[1], ARRAY_SIZE(a) - 1 , ptrcmp); \ + \ + for (i = ARRAY_SIZE(a) - 1; a[i]; --i) \ + if (a[i] != a[i - 1]) { \ + if (_lock) \ + mutex_lock_nested(&a[i]->ei_update_lock, i);\ + else \ + mutex_unlock(&a[i]->ei_update_lock); \ + } \ +} while (0) + +#define bch2_lock_inodes(...) __bch2_lock_inodes(true, __VA_ARGS__) +#define bch2_unlock_inodes(...) __bch2_lock_inodes(false, __VA_ARGS__) + static inline struct bch_inode_info *file_bch_inode(struct file *file) { return to_bch_ei(file_inode(file)); @@ -49,12 +73,39 @@ static inline u64 bch2_current_time(struct bch_fs *c) return timespec_to_bch2_time(c, current_kernel_time64()); } +static inline bool inode_attr_changing(struct bch_inode_info *dir, + struct bch_inode_info *inode, + enum inode_opt_id id) +{ + return !(inode->ei_inode.bi_fields_set & (1 << id)) && + bch2_inode_opt_get(&dir->ei_inode, id) != + bch2_inode_opt_get(&inode->ei_inode, id); +} + +static inline bool inode_attrs_changing(struct bch_inode_info *dir, + struct bch_inode_info *inode) +{ + unsigned id; + + for (id = 0; id < Inode_opt_nr; id++) + if (inode_attr_changing(dir, inode, id)) + return true; + + return false; +} + struct bch_inode_unpacked; #ifndef NO_BCACHEFS_FS struct inode *bch2_vfs_inode_get(struct bch_fs *, u64); +int bch2_fs_quota_transfer(struct bch_fs *, + struct bch_inode_info *, + struct bch_qid, + unsigned, + enum quota_acct_mode); + /* returns 0 if we want to do the update, or error is passed up */ typedef int (*inode_set_fn)(struct bch_inode_info *, struct bch_inode_unpacked *, void *); @@ -70,6 +121,10 @@ int __must_check bch2_write_inode_trans(struct btree_trans *, int __must_check bch2_write_inode(struct bch_fs *, struct bch_inode_info *, inode_set_fn, void *, unsigned); +int bch2_reinherit_attrs_fn(struct bch_inode_info *, + struct bch_inode_unpacked *, + void *); + void bch2_vfs_exit(void); int bch2_vfs_init(void); |