mirror of
https://github.com/koverstreet/bcachefs-tools.git
synced 2025-02-02 00:00:03 +03:00
148 lines
3.4 KiB
C
148 lines
3.4 KiB
C
#ifndef _BCACHEFS_FS_H
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#define _BCACHEFS_FS_H
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#include "inode.h"
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#include "opts.h"
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#include "str_hash.h"
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#include "quota_types.h"
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#include <linux/seqlock.h>
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#include <linux/stat.h>
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struct bch_inode_info {
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struct inode v;
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struct mutex ei_update_lock;
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struct deferred_update *ei_inode_update;
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u64 ei_journal_seq;
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u64 ei_quota_reserved;
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unsigned long ei_last_dirtied;
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struct mutex ei_quota_lock;
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struct bch_qid ei_qid;
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struct bch_hash_info ei_str_hash;
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/* copy of inode in btree: */
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struct bch_inode_unpacked ei_inode;
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};
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#define to_bch_ei(_inode) \
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container_of_or_null(_inode, struct bch_inode_info, v)
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static inline int ptrcmp(void *l, void *r)
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{
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return cmp_int(l, r);
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}
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#define __bch2_lock_inodes(_lock, ...) \
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do { \
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struct bch_inode_info *a[] = { NULL, __VA_ARGS__ }; \
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unsigned i; \
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\
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bubble_sort(&a[1], ARRAY_SIZE(a) - 1 , ptrcmp); \
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\
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for (i = ARRAY_SIZE(a) - 1; a[i]; --i) \
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if (a[i] != a[i - 1]) { \
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if (_lock) \
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mutex_lock_nested(&a[i]->ei_update_lock, i);\
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else \
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mutex_unlock(&a[i]->ei_update_lock); \
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} \
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} while (0)
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#define bch2_lock_inodes(...) __bch2_lock_inodes(true, __VA_ARGS__)
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#define bch2_unlock_inodes(...) __bch2_lock_inodes(false, __VA_ARGS__)
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static inline struct bch_inode_info *file_bch_inode(struct file *file)
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{
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return to_bch_ei(file_inode(file));
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}
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static inline u8 mode_to_type(umode_t mode)
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{
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return (mode >> 12) & 15;
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}
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static inline unsigned nlink_bias(umode_t mode)
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{
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return S_ISDIR(mode) ? 2 : 1;
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}
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static inline bool inode_attr_changing(struct bch_inode_info *dir,
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struct bch_inode_info *inode,
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enum inode_opt_id id)
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{
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return !(inode->ei_inode.bi_fields_set & (1 << id)) &&
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bch2_inode_opt_get(&dir->ei_inode, id) !=
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bch2_inode_opt_get(&inode->ei_inode, id);
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}
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static inline bool inode_attrs_changing(struct bch_inode_info *dir,
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struct bch_inode_info *inode)
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{
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unsigned id;
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for (id = 0; id < Inode_opt_nr; id++)
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if (inode_attr_changing(dir, inode, id))
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return true;
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return false;
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}
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struct bch_inode_unpacked;
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#ifndef NO_BCACHEFS_FS
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int bch2_fs_quota_transfer(struct bch_fs *,
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struct bch_inode_info *,
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struct bch_qid,
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unsigned,
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enum quota_acct_mode);
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static inline int bch2_set_projid(struct bch_fs *c,
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struct bch_inode_info *inode,
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u32 projid)
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{
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struct bch_qid qid = inode->ei_qid;
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qid.q[QTYP_PRJ] = projid;
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return bch2_fs_quota_transfer(c, inode, qid,
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1 << QTYP_PRJ,
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KEY_TYPE_QUOTA_PREALLOC);
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}
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struct inode *bch2_vfs_inode_get(struct bch_fs *, u64);
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/* returns 0 if we want to do the update, or error is passed up */
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typedef int (*inode_set_fn)(struct bch_inode_info *,
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struct bch_inode_unpacked *, void *);
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void bch2_inode_update_after_write(struct bch_fs *,
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struct bch_inode_info *,
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struct bch_inode_unpacked *,
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unsigned);
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int __must_check bch2_write_inode_trans(struct btree_trans *,
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struct bch_inode_info *,
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struct bch_inode_unpacked *,
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inode_set_fn, void *);
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int __must_check bch2_write_inode(struct bch_fs *, struct bch_inode_info *,
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inode_set_fn, void *, unsigned);
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int bch2_reinherit_attrs_fn(struct bch_inode_info *,
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struct bch_inode_unpacked *,
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void *);
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void bch2_vfs_exit(void);
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int bch2_vfs_init(void);
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#else
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static inline void bch2_vfs_exit(void) {}
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static inline int bch2_vfs_init(void) { return 0; }
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#endif /* NO_BCACHEFS_FS */
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#endif /* _BCACHEFS_FS_H */
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