fs/gfs2/log.c

1043 	unsigned int reserved_blocks = 0, used_blocks = 0;
1069 		if (reserved_blocks)
1070 			gfs2_log_release(sdp, reserved_blocks);
1071 		reserved_blocks = sdp->sd_log_blks_reserved;
1082 	} else if (!reserved_blocks) {
1085 		reserved_blocks = GFS2_LOG_FLUSH_MIN_BLOCKS;
1089 		if (!__gfs2_log_try_reserve(sdp, reserved_blocks, taboo_blocks)) {
1091 			__gfs2_log_reserve(sdp, reserved_blocks, taboo_blocks);
1153 		reserved_blocks += (reserved_revokes - sdp->sd_ldptrs) / sdp->sd_inptrs;
1155 	if (used_blocks != reserved_blocks) {
1156 		gfs2_assert_withdraw_delayed(sdp, used_blocks < reserved_blocks);
1157 		gfs2_log_release(sdp, reserved_blocks - used_blocks);