Update bcachefs sources to 380885b0b8 bcachefs: Fix counting iterators for reflink...

[bcachefs-tools-debian] / libbcachefs / fs.h

diff --git a/libbcachefs/fs.h b/libbcachefs/fs.h
index d255ca7c375498f86e5a5e2b6fc4bffd87e27f77..6a9f724283ce93b73863fa4c98f2a5520f044de8 100644 (file)
--- a/libbcachefs/fs.h
+++ b/libbcachefs/fs.h
@@ -1,7 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0 */
 #ifndef _BCACHEFS_FS_H
 #define _BCACHEFS_FS_H
 
+#include "inode.h"
+#include "opts.h"
 #include "str_hash.h"
+#include "quota_types.h"
 
 #include <linux/seqlock.h>
 #include <linux/stat.h>
@@ -11,27 +15,63 @@ struct bch_inode_info {
 
        struct mutex            ei_update_lock;
        u64                     ei_journal_seq;
+       u64                     ei_quota_reserved;
+       unsigned long           ei_last_dirtied;
 
-       atomic_long_t           ei_size_dirty_count;
-
-       /*
-        * these are updated whenever we update the inode in the btree - for
-        * e.g. fsync
-        */
-       u64                     ei_size;
-       u32                     ei_flags;
-
-       atomic_long_t           ei_sectors_dirty_count;
-       atomic64_t              ei_sectors;
+       struct mutex            ei_quota_lock;
+       struct bch_qid          ei_qid;
 
        struct bch_hash_info    ei_str_hash;
 
-       unsigned long           ei_last_dirtied;
+       /* copy of inode in btree: */
+       struct bch_inode_unpacked ei_inode;
 };
 
 #define to_bch_ei(_inode)                                      \
        container_of_or_null(_inode, struct bch_inode_info, v)
 
+static inline int ptrcmp(void *l, void *r)
+{
+       return cmp_int(l, r);
+}
+
+enum bch_inode_lock_op {
+       INODE_LOCK              = (1U << 0),
+       INODE_UPDATE_LOCK       = (1U << 1),
+};
+
+#define bch2_lock_inodes(_locks, ...)                                  \
+do {                                                                   \
+       struct bch_inode_info *a[] = { NULL, __VA_ARGS__ };             \
+       unsigned i;                                                     \
+                                                                       \
+       bubble_sort(&a[1], ARRAY_SIZE(a) - 1, ptrcmp);                  \
+                                                                       \
+       for (i = 1; i < ARRAY_SIZE(a); i++)                             \
+               if (a[i] != a[i - 1]) {                                 \
+                       if (_locks & INODE_LOCK)                        \
+                               down_write_nested(&a[i]->v.i_rwsem, i); \
+                       if (_locks & INODE_UPDATE_LOCK)                 \
+                               mutex_lock_nested(&a[i]->ei_update_lock, i);\
+               }                                                       \
+} while (0)
+
+#define bch2_unlock_inodes(_locks, ...)                                        \
+do {                                                                   \
+       struct bch_inode_info *a[] = { NULL, __VA_ARGS__ };             \
+       unsigned i;                                                     \
+                                                                       \
+       bubble_sort(&a[1], ARRAY_SIZE(a) - 1, ptrcmp);                  \
+                                                                       \
+       for (i = 1; i < ARRAY_SIZE(a); i++)                             \
+               if (a[i] != a[i - 1]) {                                 \
+                       if (_locks & INODE_LOCK)                        \
+                               up_write(&a[i]->v.i_rwsem);             \
+                       if (_locks & INODE_UPDATE_LOCK)                 \
+                               mutex_unlock(&a[i]->ei_update_lock);    \
+               }                                                       \
+} while (0)
+
 static inline struct bch_inode_info *file_bch_inode(struct file *file)
 {
        return to_bch_ei(file_inode(file));
@@ -42,23 +82,70 @@ static inline u8 mode_to_type(umode_t mode)
        return (mode >> 12) & 15;
 }
 
-static inline unsigned nlink_bias(umode_t mode)
+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)
 {
-       return S_ISDIR(mode) ? 2 : 1;
+       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
 
+int bch2_fs_quota_transfer(struct bch_fs *,
+                          struct bch_inode_info *,
+                          struct bch_qid,
+                          unsigned,
+                          enum quota_acct_mode);
+
+static inline int bch2_set_projid(struct bch_fs *c,
+                                 struct bch_inode_info *inode,
+                                 u32 projid)
+{
+       struct bch_qid qid = inode->ei_qid;
+
+       qid.q[QTYP_PRJ] = projid;
+
+       return bch2_fs_quota_transfer(c, inode, qid,
+                                     1 << QTYP_PRJ,
+                                     KEY_TYPE_QUOTA_PREALLOC);
+}
+
+struct inode *bch2_vfs_inode_get(struct bch_fs *, u64);
+
 /* 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 *);
 
-int __must_check __bch2_write_inode(struct bch_fs *, struct bch_inode_info *,
-                                   inode_set_fn, void *);
-int __must_check bch2_write_inode(struct bch_fs *,
-                                 struct bch_inode_info *);
+void bch2_inode_update_after_write(struct bch_fs *,
+                                  struct bch_inode_info *,
+                                  struct bch_inode_unpacked *,
+                                  unsigned);
+int __must_check bch2_write_inode_trans(struct btree_trans *,
+                               struct bch_inode_info *,
+                               struct bch_inode_unpacked *,
+                               inode_set_fn, void *);
+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);