centos man page for journal_dirty_data

JOURNAL_DIRTY_DATA(9)					     The Linux Journalling API					     JOURNAL_DIRTY_DATA(9)

NAME
       journal_dirty_data - mark a buffer as containing dirty data to be flushed

SYNOPSIS
       int journal_dirty_data(handle_t * handle, struct buffer_head * bh);

ARGUMENTS
       handle
	   transaction

       bh
	   bufferhead to mark

DESCRIPTION
       Mark a buffer as containing dirty data which needs to be flushed before we can commit the current transaction.

       The buffer is placed on the transaction's data list and is marked as belonging to the transaction.

       Returns error number or 0 on success.

       journal_dirty_data can be called via page_launder->ext3_writepage by kswapd.

AUTHORS
       Roger Gammans <rgammans@computer-surgery.co.uk>
	   Author.

       Stephen Tweedie <sct@redhat.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						     JOURNAL_DIRTY_DATA(9)