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Kernel: Update the ".." inode for directories after a rename

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Because the ".." entry in a directory is a separate inode, if a
directory is renamed to a new location, then we should update this entry
the point to the new parent directory as well.

Co-authored-by: Liav A <liavalb@gmail.com>
This commit is contained in:
sin-ack 2022-10-08 11:22:12 +02:00 • committed by Andreas Kling
parent 2b246d980a
commit 3b03077abb
18 changed files with 128 additions and 0 deletions
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3
Kernel/FileSystem/Inode.h
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@ -66,6 +66,9 @@ public:
virtual ErrorOr<NonnullLockRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) = 0;
virtual ErrorOr<void> add_child(Inode&, StringView name, mode_t) = 0;
virtual ErrorOr<void> remove_child(StringView name) = 0;
/// Replace child atomically, incrementing the link count of the replacement
/// inode and decrementing the older inode's.
virtual ErrorOr<void> replace_child(StringView name, Inode&) = 0;
virtual ErrorOr<void> chmod(mode_t) = 0;
virtual ErrorOr<void> chown(UserID, GroupID) = 0;
virtual ErrorOr<void> truncate(u64) { return {}; }