jbd2_journal_get_write_access (9) Linux Manual Page
jbd2_journal_get_write_access – notify intent to modify a buffer for metadata (not data) update.
Synopsis
int jbd2_journal_get_write_access(handle_t *handle, struct buffer_head *bh);Arguments
handle
-
- transaction to add buffer modifications to
bh
- bh to be used for metadata writes
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 writeing a buffer which is also part of a shared mapping.
Authors
Roger Gammans <rgammans [at] computer-surgery.co.uk>
- Author.
Stephen Tweedie <sct [at] redhat.com>
- Author.