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Kernel: Update atime/ctime/mtime timestamps atomically

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Instead of having three separate APIs (one for each timestamp),
there's now only Inode::update_timestamps() and it takes 3x optional
timestamps. The non-empty timestamps are updated while holding the inode
mutex, and the outside world no longer has to look at intermediate
timestamp states.
This commit is contained in:
Andreas Kling 2022-08-22 13:34:22 +02:00
parent 35b2e9c663
commit 280694bb46
18 changed files with 34 additions and 109 deletions
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4
Kernel/FileSystem/Ext2FileSystem.h
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@ -44,9 +44,7 @@ private:
virtual ErrorOr<NonnullLockRefPtr<Inode>> create_child(StringView name, mode_t, dev_t, UserID, GroupID) override;
virtual ErrorOr<void> add_child(Inode& child, StringView name, mode_t) override;
virtual ErrorOr<void> remove_child(StringView name) override;
virtual ErrorOr<void> set_atime(time_t) override;
virtual ErrorOr<void> set_ctime(time_t) override;
virtual ErrorOr<void> set_mtime(time_t) override;
virtual ErrorOr<void> update_timestamps(Optional<time_t> atime, Optional<time_t> ctime, Optional<time_t> mtime) override;
virtual ErrorOr<void> increment_link_count() override;
virtual ErrorOr<void> decrement_link_count() override;
virtual ErrorOr<void> chmod(mode_t) override;