The Linux Journalling API | ||
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handle to attach the callback to.
function to callback.
structure with additional information required by func , and some space for jbd internal information.
The function will be called when the transaction that this handle is part of has been committed to disk with the original callback data struct and the error status of the journal as parameters. There is no guarantee of ordering between handles within a single transaction, nor between callbacks registered on the same handle.
The caller is responsible for allocating the journal_callback struct. This is to allow the caller to add as much extra data to the callback as needed, but reduce the overhead of multiple allocations. The caller allocated struct must start with a struct journal_callback at offset 0, and has the caller-specific data afterwards.
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