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JOURNAL_FORGET(9) The Linux Journalling API JOURNAL_FORGET(9)
NAME
journal_forget - bforget for potentially-journaled buffers.
SYNOPSIS
int journal_forget(handle_t * handle, struct buffer_head * bh);
ARGUMENTS
handle
transaction handle
bh
bh to 'forget'
DESCRIPTION
We can only do the bforget if there are no commits pending against the
buffer. If the buffer is dirty in the current running transaction we
can safely unlink it.
bh may not be a journalled buffer at all - it may be a non-JBD buffer
which came off the hashtable. Check for this.
Decrements bh->b_count by one.
Allow this call even if the handle has aborted --- it may be part of
the caller's cleanup after an abort.
AUTHORS
Roger Gammans <rgammans@computer-surgery.co.uk>
Author.
Stephen Tweedie <sct@redhat.com>
Author.
COPYRIGHT
Kernel Hackers Manual 3.8. June 2014 JOURNAL_FORGET(9)
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