journal_get_write_access
Name
journal_get_write_access -- notify intent to modify a buffer for metadata (not data) update.
Synopsis
int journal_get_write_access
(handle_t * handle, struct buffer_head * bh, int * credits);
Arguments
handle
transaction to add buffer modifications to
bh
bh to be used for metadata writes
credits
-- undescribed --
Description
Returns an error code or 0 on success.
In full data journalling mode the buffer may be of type BJ_AsyncData,
because we're write
ing a buffer which is also part of a shared mapping.