journal_get_write_access - notify intent to modify a buffer for metadata (not data) update.
2. SYNOPSIS ▲
int journal_get_write_access(handle_t * handle , struct buffer_head * bh );
3. ARGUMENTS ▲
transaction to add buffer modifications to
bh to be used for metadata writes
4. DESCRIPTION ▲
Returns an error code or 0 on success.
In full data journalling mode the buffer may be of type BJ_AsyncData, because weAqre writeing a buffer which is also part of a shared mapping.
5. AUTHORS ▲
Roger Gammans <
Stephen Tweedie <
6. COPYRIGHT ▲