Provided by:
linux-doc-2.6.15_2.6.15-23.39_all 
NAME
journal_invalidatepage -
SYNOPSIS
int journal_invalidatepage (journal_t * journal, struct page * page,
unsigned long offset);
ARGUMENTS
journal
journal to use for flush...
page page to flush
offset length of page to invalidate.
DESCRIPTION
Reap page buffers containing data after offset in page.
Return non-zero if the page’s buffers were successfully reaped.
AUTHORS
Roger Gammans <rgammans@computer-surgery.co.uk>, Stephen Tweedie
<sct@redhat.com>.