journal_get_write_access(9) centos man page | unix.com

JOURNAL_GET_WRITE_AC(9) 				     The Linux Journalling API					   JOURNAL_GET_WRITE_AC(9)

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);

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@computer-surgery.co.uk>
	   Author.

       Stephen Tweedie <sct@redhat.com>
	   Author.

COPYRIGHT
Kernel Hackers Manual 3.10					     June 2014						   JOURNAL_GET_WRITE_AC(9)