fs/gfs2/log.c

300  * @max_revokes: If nonzero, issue revokes for the bd items for written buffers
335 		 * If we have space for revokes and the bd is no longer on any
353  * @max_revokes: If non-zero, add revokes where appropriate
440 static bool __gfs2_log_try_reserve_revokes(struct gfs2_sbd *sdp, unsigned int revokes)
445 	while (available >= revokes) {
447 				       &available, available - revokes))
454  * gfs2_log_release_revokes - Release a given number of revokes
456  * @revokes: The number of revokes to release
460 void gfs2_log_release_revokes(struct gfs2_sbd *sdp, unsigned int revokes)
462 	if (revokes)
463 		atomic_add(revokes, &sdp->sd_log_revokes_available);
559  * @extra_revokes: The number of additional revokes reserved (output)
569 	unsigned int revokes = tr->tr_revokes;
573 	if (revokes && !__gfs2_log_try_reserve_revokes(sdp, revokes)) {
574 		revoke_blks = DIV_ROUND_UP(revokes, sdp->sd_inptrs);
575 		*extra_revokes = revoke_blks * sdp->sd_inptrs - revokes;
583 		gfs2_log_release_revokes(sdp, revokes);
591  * @extra_revokes: The number of additional revokes reserved (output)
600 	unsigned int revokes = tr->tr_revokes;
604 	if (revokes) {
605 		revoke_blks = DIV_ROUND_UP(revokes, sdp->sd_inptrs);
606 		*extra_revokes = revoke_blks * sdp->sd_inptrs - revokes;
794  * gfs2_flush_revokes - Add as many revokes to the system transaction as we can
797  * Our usual strategy is to defer writing revokes as much as we can in the hope
798  * that we'll eventually overwrite the journal, which will make those revokes
801  * We can fill that space with additional revokes for blocks that have already
807 	/* number of revokes we still have room for */
948 	 * before revokes are sent for that block. Items on the sd_ail2_list