Merge tag 'bcachefs-2023-10-30' of https://evilpiepirate.org/git/bcachefs

Pull initial bcachefs updates from Kent Overstreet:
 "Here's the bcachefs filesystem pull request.

  One new patch since last week: the exportfs constants ended up
  conflicting with other filesystems that are also getting added to the
  global enum, so switched to new constants picked by Amir.

  The only new non fs/bcachefs/ patch is the objtool patch that adds
  bcachefs functions to the list of noreturns. The patch that exports
  osq_lock() has been dropped for now, per Ingo"

* tag 'bcachefs-2023-10-30' of https://evilpiepirate.org/git/bcachefs: (2781 commits)
  exportfs: Change bcachefs fid_type enum to avoid conflicts
  bcachefs: Refactor memcpy into direct assignment
  bcachefs: Fix drop_alloc_keys()
  bcachefs: snapshot_create_lock
  bcachefs: Fix snapshot skiplists during snapshot deletion
  bcachefs: bch2_sb_field_get() refactoring
  bcachefs: KEY_TYPE_error now counts towards i_sectors
  bcachefs: Fix handling of unknown bkey types
  bcachefs: Switch to unsafe_memcpy() in a few places
  bcachefs: Use struct_size()
  bcachefs: Correctly initialize new buckets on device resize
  bcachefs: Fix another smatch complaint
  bcachefs: Use strsep() in split_devs()
  bcachefs: Add iops fields to bch_member
  bcachefs: Rename bch_sb_field_members -> bch_sb_field_members_v1
  bcachefs: New superblock section members_v2
  bcachefs: Add new helper to retrieve bch_member from sb
  bcachefs: bucket_lock() is now a sleepable lock
  bcachefs: fix crc32c checksum merge byte order problem
  bcachefs: Fix bch2_inode_delete_keys()
  ...

1 files changed, 70 insertions, 0 deletions

diff --git a/fs/bcachefs/dirent.h b/fs/bcachefs/dirent.h
new file mode 100644
index 000000000000..e9fa1df38232
--- /dev/null
+++ b/fs/bcachefs/dirent.h
@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _BCACHEFS_DIRENT_H
+#define _BCACHEFS_DIRENT_H
+
+#include "str_hash.h"
+
+enum bkey_invalid_flags;
+extern const struct bch_hash_desc bch2_dirent_hash_desc;
+
+int bch2_dirent_invalid(const struct bch_fs *, struct bkey_s_c,
+			enum bkey_invalid_flags, struct printbuf *);
+void bch2_dirent_to_text(struct printbuf *, struct bch_fs *, struct bkey_s_c);
+
+#define bch2_bkey_ops_dirent ((struct bkey_ops) {	\
+	.key_invalid	= bch2_dirent_invalid,		\
+	.val_to_text	= bch2_dirent_to_text,		\
+	.min_val_size	= 16,				\
+})
+
+struct qstr;
+struct file;
+struct dir_context;
+struct bch_fs;
+struct bch_hash_info;
+struct bch_inode_info;
+
+struct qstr bch2_dirent_get_name(struct bkey_s_c_dirent d);
+
+static inline unsigned dirent_val_u64s(unsigned len)
+{
+	return DIV_ROUND_UP(offsetof(struct bch_dirent, d_name) + len,
+			    sizeof(u64));
+}
+
+int bch2_dirent_read_target(struct btree_trans *, subvol_inum,
+			    struct bkey_s_c_dirent, subvol_inum *);
+
+int bch2_dirent_create(struct btree_trans *, subvol_inum,
+		       const struct bch_hash_info *, u8,
+		       const struct qstr *, u64, u64 *, int);
+
+static inline unsigned vfs_d_type(unsigned type)
+{
+	return type == DT_SUBVOL ? DT_DIR : type;
+}
+
+enum bch_rename_mode {
+	BCH_RENAME,
+	BCH_RENAME_OVERWRITE,
+	BCH_RENAME_EXCHANGE,
+};
+
+int bch2_dirent_rename(struct btree_trans *,
+		       subvol_inum, struct bch_hash_info *,
+		       subvol_inum, struct bch_hash_info *,
+		       const struct qstr *, subvol_inum *, u64 *,
+		       const struct qstr *, subvol_inum *, u64 *,
+		       enum bch_rename_mode);
+
+int __bch2_dirent_lookup_trans(struct btree_trans *, struct btree_iter *,
+			       subvol_inum, const struct bch_hash_info *,
+			       const struct qstr *, subvol_inum *, unsigned);
+u64 bch2_dirent_lookup(struct bch_fs *, subvol_inum,
+		       const struct bch_hash_info *,
+		       const struct qstr *, subvol_inum *);
+
+int bch2_empty_dir_trans(struct btree_trans *, subvol_inum);
+int bch2_readdir(struct bch_fs *, subvol_inum, struct dir_context *);
+
+#endif /* _BCACHEFS_DIRENT_H */